Merge pull request #1751 from tendermint/bucky/codeowner-alex

add xla as codeowner

.circleci/config.yml

@@ -77,6 +77,22 @@ jobs:
           paths:
             - "bin/abci*"
 
+  build_slate:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: /tmp/workspace
+      - restore_cache:
+          key: v1-pkg-cache
+      - restore_cache:
+          key: v1-tree-{{ .Environment.CIRCLE_SHA1 }}
+      - run:
+          name: slate docs
+          command: |
+            set -ex
+            export PATH="$GOBIN:$PATH"
+            make build-slate
+
   lint:
     <<: *defaults
     steps:
@@ -117,18 +133,21 @@ jobs:
           key: v1-pkg-cache
       - restore_cache:
           key: v1-tree-{{ .Environment.CIRCLE_SHA1 }}
+      - run: mkdir -p /tmp/logs
       - run:
           name: Run tests
           command: |
             for pkg in $(go list github.com/tendermint/tendermint/... | grep -v /vendor/ | circleci tests split --split-by=timings); do
               id=$(basename "$pkg")
 
-              go test -timeout 5m -race -coverprofile=/tmp/workspace/profiles/$id.out -covermode=atomic "$pkg"
+              GOCACHE=off go test -v -timeout 5m -race -coverprofile=/tmp/workspace/profiles/$id.out -covermode=atomic "$pkg" | tee "/tmp/logs/$id-$RANDOM.log"
             done
       - persist_to_workspace:
           root: /tmp/workspace
           paths:
             - "profiles/*"
+      - store_artifacts:
+          path: /tmp/logs
 
   test_persistence:
     <<: *defaults
@@ -153,7 +172,7 @@ jobs:
       - checkout
       - run: mkdir -p $GOPATH/src/github.com/tendermint
       - run: ln -sf /home/circleci/project $GOPATH/src/github.com/tendermint/tendermint
-      - run: bash test/circleci/p2p.sh
+      - run: bash test/p2p/circleci.sh
 
   upload_coverage:
     <<: *defaults

.github/CODEOWNERS

@@ -1,4 +1,4 @@
 # CODEOWNERS: https://help.github.com/articles/about-codeowners/
 
-# Everything goes through Bucky and Anton. For now.
-*       @ebuchman @melekes
+# Everything goes through Bucky, Anton, Alex. For now.
+*       @ebuchman @melekes @xla

.github/ISSUE_TEMPLATE

@@ -19,10 +19,6 @@ in a case of bug.
 
 **ABCI app** (name for built-in, URL for self-written if it's publicly available):
 
-
-**Merkleeyes version** (use `git rev-parse --verify HEAD`, skip if you don't use it):
-
-
 **Environment**:
 - **OS** (e.g. from /etc/os-release):
 - **Install tools**:

.gitignore

@@ -5,7 +5,6 @@
 .DS_Store
 build/*
 rpc/test/.tendermint
-.debora
 .tendermint
 remote_dump
 .revision
@@ -13,7 +12,6 @@ vendor
 .vagrant
 test/p2p/data/
 test/logs
-.glide
 coverage.txt
 docs/_build
 docs/tools
@@ -25,3 +23,5 @@ scripts/cutWALUntil/cutWALUntil
 
 .idea/
 *.iml
+
+libs/pubsub/query/fuzz_test/output

CHANGELOG.md

@@ -1,28 +1,202 @@
 # Changelog
 
-## Roadmap
+## 0.20.0
 
-BREAKING CHANGES:
-- Better support for injecting randomness
-- Upgrade consensus for more real-time use of evidence
+*June 6th, 2018*
 
-FEATURES:
-- Use the chain as its own CA for nodes and validators
-- Tooling to run multiple blockchains/apps, possibly in a single process
-- State syncing (without transaction replay)
-- Add authentication and rate-limitting to the RPC
+This is the first in a series of breaking releases coming to Tendermint after
+soliciting developer feedback and conducting security audits.
+
+This release does not break any blockchain data structures or
+protocols other than the ABCI messages between Tendermint and the application.
+
+Applications that upgrade for ABCI v0.11.0 should be able to continue running Tendermint
+v0.20.0 on blockchains created with v0.19.X
+
+BREAKING CHANGES
+
+- [abci] Upgrade to
+  [v0.11.0](https://github.com/tendermint/abci/blob/master/CHANGELOG.md#0110)
+- [abci] Change Query path for filtering peers by node ID from
+  `p2p/filter/pubkey/<id>` to `p2p/filter/id/<id>`
+
+## 0.19.9
+
+*June 5th, 2018*
+
+BREAKING CHANGES
+
+- [types/priv_validator] Moved to top level `privval` package
+
+FEATURES
+
+- [config] Collapse PeerConfig into P2PConfig
+- [docs] Add quick-install script
+- [docs/spec] Add table of Amino prefixes
+
+BUG FIXES
+
+- [rpc] Return 404 for unknown endpoints
+- [consensus] Flush WAL on stop
+- [evidence] Don't send evidence to peers that are behind
+- [p2p] Fix memory leak on peer disconnects
+- [rpc] Fix panic when `per_page=0`
+
+## 0.19.8
+
+*June 4th, 2018*
+
+BREAKING:
+
+- [p2p] Remove `auth_enc` config option, peer connections are always auth
+  encrypted. Technically a breaking change but seems no one was using it and
+  arguably a bug fix :)
+
+BUG FIXES
+
+- [mempool] Fix deadlock under high load when `skip_timeout_commit=true` and
+  `create_empty_blocks=false`
+
+## 0.19.7
+
+*May 31st, 2018*
+
+BREAKING:
+
+- [libs/pubsub] TagMap#Get returns a string value
+- [libs/pubsub] NewTagMap accepts a map of strings
+
+FEATURES
+
+- [rpc] the RPC documentation is now published to https://tendermint.github.io/slate
+- [p2p] AllowDuplicateIP config option to refuse connections from same IP.
+    - true by default for now, false by default in next breaking release
+- [docs] Add docs for query, tx indexing, events, pubsub
+- [docs] Add some notes about running Tendermint in production
 
 IMPROVEMENTS:
-- Improve subtleties around mempool caching and logic
-- Consensus optimizations:
-	- cache block parts for faster agreement after round changes
-	- propagate block parts rarest first
-- Better testing of the consensus state machine (ie. use a DSL)
-- Auto compiled serialization/deserialization code instead of go-wire reflection
+
+- [consensus] Consensus reactor now receives events from a separate synchronous event bus,
+  which is not dependant on external RPC load
+- [consensus/wal] do not look for height in older files if we've seen height - 1
+- [docs] Various cleanup and link fixes
+
+## 0.19.6
+
+*May 29th, 2018*
+
+BUG FIXES
+
+- [blockchain] Fix fast-sync deadlock during high peer turnover
+
+BUG FIX:
+
+- [evidence] Dont send peers evidence from heights they haven't synced to yet
+- [p2p] Refuse connections to more than one peer with the same IP
+- [docs] Various fixes
+
+## 0.19.5
+
+*May 20th, 2018*
+
+BREAKING CHANGES
+
+- [rpc/client] TxSearch and UnconfirmedTxs have new arguments (see below)
+- [rpc/client] TxSearch returns ResultTxSearch
+- [version] Breaking changes to Go APIs will not be reflected in breaking
+  version change, but will be included in changelog.
+
+FEATURES
+
+- [rpc] `/tx_search` takes `page` (starts at 1) and `per_page` (max 100, default 30) args to paginate results
+- [rpc] `/unconfirmed_txs` takes `limit` (max 100, default 30) arg to limit the output
+- [config] `mempool.size` and `mempool.cache_size` options
+
+IMPROVEMENTS
+
+- [docs] Lots of updates
+- [consensus] Only Fsync() the WAL before executing msgs from ourselves
+
+BUG FIXES
+
+- [mempool] Enforce upper bound on number of transactions
+
+## 0.19.4 (May 17th, 2018)
+
+IMPROVEMENTS
+
+- [state] Improve tx indexing by using batches
+- [consensus, state] Improve logging (more consensus logs, fewer tx logs)
+- [spec] Moved to `docs/spec` (TODO cleanup the rest of the docs ...)
+
+BUG FIXES
+
+- [consensus] Fix issue #1575 where a late proposer can get stuck
+
+## 0.19.3 (May 14th, 2018)
+
+FEATURES
+
+- [rpc] New `/consensus_state` returns just the votes seen at the current height
+
+IMPROVEMENTS
+
+- [rpc] Add stringified votes and fraction of power voted to `/dump_consensus_state`
+- [rpc] Add PeerStateStats to `/dump_consensus_state`
+
+BUG FIXES
+
+- [cmd] Set GenesisTime during `tendermint init`
+- [consensus] fix ValidBlock rules
+
+## 0.19.2 (April 30th, 2018)
+
+FEATURES:
+
+- [p2p] Allow peers with different Minor versions to connect
+- [rpc] `/net_info` includes `n_peers`
+
+IMPROVEMENTS:
+
+- [p2p] Various code comments, cleanup, error types
+- [p2p] Change some Error logs to Debug
 
 BUG FIXES:
-- Graceful handling/recovery for apps that have non-determinism or fail to halt
-- Graceful handling/recovery for violations of safety, or liveness
+
+- [p2p] Fix reconnect to persistent peer when first dial fails
+- [p2p] Validate NodeInfo.ListenAddr
+- [p2p] Only allow (MaxNumPeers - MaxNumOutboundPeers) inbound peers
+- [p2p/pex] Limit max msg size to 64kB
+- [p2p] Fix panic when pex=false
+- [p2p] Allow multiple IPs per ID in AddrBook
+- [p2p] Fix before/after bugs in addrbook isBad()
+
+## 0.19.1 (April 27th, 2018)
+
+Note this release includes some small breaking changes in the RPC and one in the
+config that are really bug fixes. v0.19.1 will work with existing chains, and make Tendermint
+easier to use and debug. With <3
+
+BREAKING (MINOR)
+
+- [config] Removed `wal_light` setting. If you really needed this, let us know
+
+FEATURES:
+
+- [networks] moved in tooling from devops repo: terraform and ansible scripts for deploying testnets !
+- [cmd] Added `gen_node_key` command
+
+BUG FIXES
+
+Some of these are breaking in the RPC response, but they're really bugs!
+
+- [spec] Document address format and pubkey encoding pre and post Amino
+- [rpc] Lower case JSON field names
+- [rpc] Fix missing entries, improve, and lower case the fields in `/dump_consensus_state`
+- [rpc] Fix NodeInfo.Channels format to hex
+- [rpc] Add Validator address to `/status`
+- [rpc] Fix `prove` in ABCIQuery
+- [cmd] MarshalJSONIndent on init
 
 ## 0.19.0 (April 13th, 2018)
 
@@ -39,8 +213,9 @@ See github.com/tendermint/go-amino for details on the new format.
 See `scripts/wire2amino.go` for a tool to upgrade
 genesis/priv_validator/node_key JSON files.
 
-FEATURES:
-- [cmd] added `gen_node_key` command
+FEATURES
+
+- [test] docker-compose for local testnet setup (thanks Greg!)
 
 ## 0.18.0 (April 6th, 2018)
 

DOCKER/.gitignore

@@ -0,0 +1 @@
+tendermint

DOCKER/Dockerfile

@@ -1,45 +1,39 @@
 FROM alpine:3.7
+MAINTAINER Greg Szabo <greg@tendermint.com>
 
-# This is the release of tendermint to pull in.
-ENV TM_VERSION 0.17.1
-ENV TM_SHA256SUM d57008c63d2d9176861137e38ed203da486febf20ae7d388fb810a75afff8f24
-
-# Tendermint will be looking for genesis file in /tendermint (unless you change
-# `genesis_file` in config.toml). You can put your config.toml and private
-# validator file into /tendermint.
+# Tendermint will be looking for the genesis file in /tendermint/config/genesis.json
+# (unless you change `genesis_file` in config.toml). You can put your config.toml and
+# private validator file into /tendermint/config.
 #
 # The /tendermint/data dir is used by tendermint to store state.
-ENV DATA_ROOT /tendermint
-ENV TMHOME $DATA_ROOT
-
-# Set user right away for determinism
-RUN addgroup tmuser && \
-    adduser -S -G tmuser tmuser
-
-# Create directory for persistence and give our user ownership
-RUN mkdir -p $DATA_ROOT && \
-    chown -R tmuser:tmuser $DATA_ROOT
+ENV TMHOME /tendermint
 
+# OS environment setup
+# Set user right away for determinism, create directory for persistence and give our user ownership
 # jq and curl used for extracting `pub_key` from private validator while
 # deploying tendermint with Kubernetes. It is nice to have bash so the users
 # could execute bash commands.
-RUN apk add --no-cache bash curl jq
+RUN apk update && \
+    apk upgrade && \
+    apk --no-cache add curl jq bash && \
+    addgroup tmuser && \
+    adduser -S -G tmuser tmuser -h "$TMHOME"
 
-RUN apk add --no-cache openssl && \
-    wget https://github.com/tendermint/tendermint/releases/download/v${TM_VERSION}/tendermint_${TM_VERSION}_linux_amd64.zip && \
-    echo "${TM_SHA256SUM}  tendermint_${TM_VERSION}_linux_amd64.zip" | sha256sum -c && \
-    unzip -d /bin tendermint_${TM_VERSION}_linux_amd64.zip && \
-    apk del openssl && \
-    rm -f tendermint_${TM_VERSION}_linux_amd64.zip
+# Run the container with tmuser by default. (UID=100, GID=1000)
+USER tmuser
 
 # Expose the data directory as a volume since there's mutable state in there
-VOLUME $DATA_ROOT
+VOLUME [ $TMHOME ]
 
-# p2p port
-EXPOSE 46656
-# rpc port
-EXPOSE 46657
+WORKDIR $TMHOME
 
-ENTRYPOINT ["tendermint"]
+# p2p and rpc port
+EXPOSE 46656 46657
 
+ENTRYPOINT ["/usr/bin/tendermint"]
 CMD ["node", "--moniker=`hostname`"]
+STOPSIGNAL SIGTERM
+
+ARG BINARY=tendermint
+COPY $BINARY /usr/bin/tendermint
+

DOCKER/Dockerfile.testing

@@ -0,0 +1,18 @@
+FROM golang:1.10.1
+
+
+# Grab deps (jq, hexdump, xxd, killall)
+RUN apt-get update && \
+  apt-get install -y --no-install-recommends \
+  jq bsdmainutils vim-common psmisc netcat
+
+# Add testing deps for curl
+RUN echo 'deb http://httpredir.debian.org/debian testing main non-free contrib' >> /etc/apt/sources.list && \
+  apt-get update && \
+  apt-get install -y --no-install-recommends curl
+
+VOLUME /go
+
+EXPOSE 46656
+EXPOSE 46657
+

DOCKER/Makefile

@@ -7,6 +7,9 @@ push:
 build_develop:
 	docker build -t "tendermint/tendermint:develop" -f Dockerfile.develop .
 
+build_testing:
+	docker build --tag tendermint/testing -f ./Dockerfile.testing .
+
 push_develop:
 	docker push "tendermint/tendermint:develop"
 

DOCKER/README.md

@@ -17,7 +17,7 @@
 # Quick reference
 
 * **Where to get help:**
-  https://tendermint.com/community
+  https://cosmos.network/community
 
 * **Where to file issues:**
   https://github.com/tendermint/tendermint/issues
@@ -37,25 +37,29 @@ To get started developing applications, see the [application developers guide](h
 
 ## Start one instance of the Tendermint core with the `kvstore` app
 
-A very simple example of a built-in app and Tendermint core in one container.
+A quick example of a built-in app and Tendermint core in one container.
 
 ```
 docker run -it --rm -v "/tmp:/tendermint" tendermint/tendermint init
 docker run -it --rm -v "/tmp:/tendermint" tendermint/tendermint node --proxy_app=kvstore
 ```
 
-## mintnet-kubernetes
+# Local cluster
 
-If you want to see many containers talking to each other, consider using [mintnet-kubernetes](https://github.com/tendermint/tools/tree/master/mintnet-kubernetes), which is a tool for running Tendermint-based applications on a Kubernetes cluster.
+To run a 4-node network, see the `Makefile` in the root of [the repo](https://github.com/tendermint/tendermint/master/Makefile) and run:
+
+```
+make build-linux
+make build-docker-localnode
+make localnet-start
+```
+
+Note that this will build and use a different image than the ones provided here.
 
 # License
 
-View [license information](https://raw.githubusercontent.com/tendermint/tendermint/master/LICENSE) for the software contained in this image.
+- Tendermint's license is [Apache 2.0](https://github.com/tendermint/tendermint/master/LICENSE).
 
-# User Feedback
+# Contributing
 
-## Contributing
-
-You are invited to contribute new features, fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can.
-
-Before you start to code, we recommend discussing your plans through a [GitHub](https://github.com/tendermint/tendermint/issues) issue, especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give you feedback on your design, and help you find out if someone else is working on the same thing.
+Contributions are most welcome! See the [contributing file](https://github.com/tendermint/tendermint/blob/master/CONTRIBUTING.md) for more information.

Gopkg.lock

@@ -5,7 +5,7 @@
   branch = "master"
   name = "github.com/btcsuite/btcd"
   packages = ["btcec"]
-  revision = "2be2f12b358dc57d70b8f501b00be450192efbc3"
+  revision = "86fed781132ac890ee03e906e4ecd5d6fa180c64"
 
 [[projects]]
   name = "github.com/davecgh/go-spew"
@@ -82,7 +82,7 @@
   branch = "master"
   name = "github.com/golang/snappy"
   packages = ["."]
-  revision = "553a641470496b2327abcac10b36396bd98e45c9"
+  revision = "2e65f85255dbc3072edf28d6b5b8efc472979f5a"
 
 [[projects]]
   name = "github.com/gorilla/websocket"
@@ -128,20 +128,20 @@
 [[projects]]
   name = "github.com/magiconair/properties"
   packages = ["."]
-  revision = "c3beff4c2358b44d0493c7dda585e7db7ff28ae6"
-  version = "v1.7.6"
+  revision = "c2353362d570a7bfa228149c62842019201cfb71"
+  version = "v1.8.0"
 
 [[projects]]
   branch = "master"
   name = "github.com/mitchellh/mapstructure"
   packages = ["."]
-  revision = "00c29f56e2386353d58c599509e8dc3801b0d716"
+  revision = "bb74f1db0675b241733089d5a1faa5dd8b0ef57b"
 
 [[projects]]
   name = "github.com/pelletier/go-toml"
   packages = ["."]
-  revision = "acdc4509485b587f5e675510c4f2c63e90ff68a8"
-  version = "v1.1.0"
+  revision = "c01d1270ff3e442a8a57cddc1c92dc1138598194"
+  version = "v1.2.0"
 
 [[projects]]
   name = "github.com/pkg/errors"
@@ -159,7 +159,7 @@
   branch = "master"
   name = "github.com/rcrowley/go-metrics"
   packages = ["."]
-  revision = "d932a24a8ccb8fcadc993e5c6c58f93dac168294"
+  revision = "e2704e165165ec55d062f5919b4b29494e9fa790"
 
 [[projects]]
   name = "github.com/spf13/afero"
@@ -179,8 +179,8 @@
 [[projects]]
   name = "github.com/spf13/cobra"
   packages = ["."]
-  revision = "a1f051bc3eba734da4772d60e2d677f47cf93ef4"
-  version = "v0.0.2"
+  revision = "ef82de70bb3f60c65fb8eebacbb2d122ef517385"
+  version = "v0.0.3"
 
 [[projects]]
   branch = "master"
@@ -226,7 +226,7 @@
     "leveldb/table",
     "leveldb/util"
   ]
-  revision = "714f901b98fdb3aa954b4193d8cbd64a28d80cad"
+  revision = "5d6fca44a948d2be89a9702de7717f0168403d3d"
 
 [[projects]]
   name = "github.com/tendermint/abci"
@@ -238,8 +238,8 @@
     "server",
     "types"
   ]
-  revision = "78a8905690ef54f9d57e3b2b0ee7ad3a04ef3f1f"
-  version = "v0.10.3"
+  revision = "ebee2fe114020aa49c70bbbae50b7079fc7e7b90"
+  version = "v0.11.0"
 
 [[projects]]
   branch = "master"
@@ -254,8 +254,8 @@
 [[projects]]
   name = "github.com/tendermint/go-amino"
   packages = ["."]
-  revision = "42246108ff925a457fb709475070a03dfd3e2b5c"
-  version = "0.9.6"
+  revision = "ed62928576cfcaf887209dc96142cd79cdfff389"
+  version = "0.9.9"
 
 [[projects]]
   name = "github.com/tendermint/go-crypto"
@@ -263,12 +263,6 @@
   revision = "915416979bf70efa4bcbf1c6cd5d64c5fff9fc19"
   version = "v0.6.2"
 
-[[projects]]
-  name = "github.com/tendermint/go-wire"
-  packages = ["."]
-  revision = "fa721242b042ecd4c6ed1a934ee740db4f74e45c"
-  version = "v0.7.3"
-
 [[projects]]
   name = "github.com/tendermint/tmlibs"
   packages = [
@@ -281,12 +275,10 @@
     "flowrate",
     "log",
     "merkle",
-    "pubsub",
-    "pubsub/query",
     "test"
   ]
-  revision = "97e1f1ad3f510048929a51475811a18686c894df"
-  version = "0.8.2-rc0"
+  revision = "692f1d86a6e2c0efa698fd1e4541b68c74ffaf38"
+  version = "v0.8.4"
 
 [[projects]]
   branch = "master"
@@ -301,27 +293,27 @@
     "ripemd160",
     "salsa20/salsa"
   ]
-  revision = "d6449816ce06963d9d136eee5a56fca5b0616e7e"
+  revision = "b47b1587369238182299fe4dad77d05b8b461e06"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/net"
   packages = [
     "context",
+    "http/httpguts",
     "http2",
     "http2/hpack",
     "idna",
     "internal/timeseries",
-    "lex/httplex",
     "trace"
   ]
-  revision = "61147c48b25b599e5b561d2e9c4f3e1ef489ca41"
+  revision = "1e491301e022f8f977054da4c2d852decd59571f"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/sys"
   packages = ["unix"]
-  revision = "3b87a42e500a6dc65dae1a55d0b641295971163e"
+  revision = "9527bec2660bd847c050fda93a0f0c6dee0800bb"
 
 [[projects]]
   name = "golang.org/x/text"
@@ -345,10 +337,9 @@
   version = "v0.3.0"
 
 [[projects]]
-  branch = "master"
   name = "google.golang.org/genproto"
   packages = ["googleapis/rpc/status"]
-  revision = "51d0944304c3cbce4afe9e5247e21100037bff78"
+  revision = "7fd901a49ba6a7f87732eb344f6e3c5b19d1b200"
 
 [[projects]]
   name = "google.golang.org/grpc"
@@ -383,6 +374,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "e70f8692c825e80ae8510546e297840b9560d00e11b2272749a55cc2ffd147f0"
+  inputs-digest = "ae6792578b0664708339f4c05e020687d6b799ad6f8282394b919de69e403d1f"
   solver-name = "gps-cdcl"
   solver-version = 1

Gopkg.toml

@@ -71,7 +71,7 @@
 
 [[constraint]]
   name = "github.com/tendermint/abci"
-  version = "~0.10.3"
+  version = "~0.11.0"
 
 [[constraint]]
   name = "github.com/tendermint/go-crypto"
@@ -79,16 +79,21 @@
 
 [[constraint]]
   name = "github.com/tendermint/go-amino"
-  version = "~0.9.6"
+  version = "=0.9.9"
 
-[[constraint]]
+[[override]]
   name = "github.com/tendermint/tmlibs"
-  version = "~0.8.2-rc0"
+  version = "~0.8.4"
 
 [[constraint]]
   name = "google.golang.org/grpc"
   version = "~1.7.3"
 
+# this got updated and broke, so locked to an old working commit ...
+[[override]]
+  name = "google.golang.org/genproto"
+  revision = "7fd901a49ba6a7f87732eb344f6e3c5b19d1b200"
+
 [prune]
   go-tests = true
   unused-packages = true

Makefile

@@ -178,6 +178,14 @@ metalinter_all:
 	@echo "--> Running linter (all)"
 	gometalinter.v2 --vendor --deadline=600s --enable-all --disable=lll ./...
 
+###########################################################
+### Docker image
+
+build-docker:
+	cp build/tendermint DOCKER/tendermint
+	docker build --label=tendermint --tag="tendermint/tendermint" DOCKER
+	rm -rf DOCKER/tendermint
+
 ###########################################################
 ### Local testnet using docker
 
@@ -185,18 +193,44 @@ metalinter_all:
 build-linux:
 	GOOS=linux GOARCH=amd64 $(MAKE) build
 
+build-docker-localnode:
+	cd networks/local
+	make
+
 # Run a 4-node testnet locally
-docker-start:
-	@echo "Wait until 'Attaching to node0, node1, node2, node3' message appears"
-	@if ! [ -f build/node0/config/genesis.json ]; then docker run --rm -v `pwd`/build:/tendermint:Z tendermint/localnode testnet --v 4 --o . --populate-persistent-peers --starting-ip-address 192.167.10.2 ; fi
+localnet-start: localnet-stop
+	@if ! [ -f build/node0/config/genesis.json ]; then docker run --rm -v $(CURDIR)/build:/tendermint:Z tendermint/localnode testnet --v 4 --o . --populate-persistent-peers --starting-ip-address 192.167.10.2 ; fi
 	docker-compose up
 
 # Stop testnet
-docker-stop:
+localnet-stop:
 	docker-compose down
 
+###########################################################
+### Remote full-nodes (sentry) using terraform and ansible
+
+# Server management
+sentry-start:
+	@if [ -z "$(DO_API_TOKEN)" ]; then echo "DO_API_TOKEN environment variable not set." ; false ; fi
+	@if ! [ -f $(HOME)/.ssh/id_rsa.pub ]; then ssh-keygen ; fi
+	cd networks/remote/terraform && terraform init && terraform apply -var DO_API_TOKEN="$(DO_API_TOKEN)" -var SSH_KEY_FILE="$(HOME)/.ssh/id_rsa.pub"
+	@if ! [ -f $(CURDIR)/build/node0/config/genesis.json ]; then docker run --rm -v $(CURDIR)/build:/tendermint:Z tendermint/localnode testnet --v 0 --n 4 --o . ; fi
+	cd networks/remote/ansible && ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i inventory/digital_ocean.py -l sentrynet install.yml
+	@echo "Next step: Add your validator setup in the genesis.json and config.tml files and run \"make sentry-config\". (Public key of validator, chain ID, peer IP and node ID.)"
+
+# Configuration management
+sentry-config:
+	cd networks/remote/ansible && ansible-playbook -i inventory/digital_ocean.py -l sentrynet config.yml -e BINARY=$(CURDIR)/build/tendermint -e CONFIGDIR=$(CURDIR)/build
+
+sentry-stop:
+	@if [ -z "$(DO_API_TOKEN)" ]; then echo "DO_API_TOKEN environment variable not set." ; false ; fi
+	cd networks/remote/terraform && terraform destroy -var DO_API_TOKEN="$(DO_API_TOKEN)" -var SSH_KEY_FILE="$(HOME)/.ssh/id_rsa.pub"
+
+# meant for the CI, inspect script & adapt accordingly
+build-slate:
+	bash scripts/slate.sh
+
 # To avoid unintended conflicts with file names, always add to .PHONY
 # unless there is a reason not to.
 # https://www.gnu.org/software/make/manual/html_node/Phony-Targets.html
-.PHONY: check build build_race dist install check_tools get_tools update_tools get_vendor_deps draw_deps test_cover test_apps test_persistence test_p2p test test_race test_integrations test_release test100 vagrant_test fmt build-linux docker-start docker-stop
-
+.PHONY: check build build_race dist install check_tools get_tools update_tools get_vendor_deps draw_deps test_cover test_apps test_persistence test_p2p test test_race test_integrations test_release test100 vagrant_test fmt build-linux localnet-start localnet-stop build-docker build-docker-localnode sentry-start sentry-config sentry-stop build-slate

README.md

@@ -24,7 +24,14 @@ _NOTE: This is alpha software. Please contact us if you intend to run it in prod
 Tendermint Core is Byzantine Fault Tolerant (BFT) middleware that takes a state transition machine - written in any programming language -
 and securely replicates it on many machines.
 
-For more information, from introduction to install to application development, [Read The Docs](https://tendermint.readthedocs.io/en/master/).
+For protocol details, see [the specification](/docs/spec).
+
+## Security
+
+To report a security vulnerability, see our [bug bounty
+program](https://tendermint.com/security).
+
+For examples of the kinds of bugs we're looking for, see [SECURITY.md](SECURITY.md)
 
 ## Minimum requirements
 
@@ -34,19 +41,21 @@ Go version | Go1.9 or higher
 
 ## Install
 
-To download pre-built binaries, see our [downloads page](https://tendermint.com/downloads).
+See the [install instructions](/docs/install.rst)
 
-To install from source, you should be able to:
+## Quick Start
 
-`go get -u github.com/tendermint/tendermint/cmd/tendermint`
-
-For more details (or if it fails), [read the docs](https://tendermint.readthedocs.io/en/master/install.html).
+- [Single node](/docs/using-tendermint.rst)
+- [Local cluster using docker-compose](/networks/local)
+- [Remote cluster using terraform and ansible](/docs/terraform-and-ansible.rst)
+- [Join the public testnet](https://cosmos.network/testnet)
 
 ## Resources
 
 ### Tendermint Core
 
-All resources involving the use of, building application on, or developing for, tendermint, can be found at [Read The Docs](https://tendermint.readthedocs.io/en/master/). Additional information about some - and eventually all - of the sub-projects below, can be found at Read The Docs.
+For more, [Read The Docs](https://tendermint.readthedocs.io/en/master/).
+Additional information about some - and eventually all - of the sub-projects below, can be found at Read The Docs.
 
 ### Sub-projects
 
@@ -61,8 +70,8 @@ All resources involving the use of, building application on, or developing for,
 
 ### Applications
 
-* [Ethermint](http://github.com/tendermint/ethermint); Ethereum on Tendermint
 * [Cosmos SDK](http://github.com/cosmos/cosmos-sdk); a cryptocurrency application framework
+* [Ethermint](http://github.com/tendermint/ethermint); Ethereum on Tendermint
 * [Many more](https://tendermint.readthedocs.io/en/master/ecosystem.html#abci-applications)
 
 ### More
@@ -85,7 +94,11 @@ According to SemVer, anything in the public API can change at any time before ve
 
 To provide some stability to Tendermint users in these 0.X.X days, the MINOR version is used
 to signal breaking changes across a subset of the total public API. This subset includes all
-interfaces exposed to other processes (cli, rpc, p2p, etc.), as well as parts of the following packages:
+interfaces exposed to other processes (cli, rpc, p2p, etc.), but does not
+include the in-process Go APIs.
+
+That said, breaking changes in the following packages will be documented in the
+CHANGELOG even if they don't lead to MINOR version bumps:
 
 - types
 - rpc/client

ROADMAP.md

@@ -0,0 +1,23 @@
+# Roadmap
+
+BREAKING CHANGES:
+- Better support for injecting randomness
+- Upgrade consensus for more real-time use of evidence
+
+FEATURES:
+- Use the chain as its own CA for nodes and validators
+- Tooling to run multiple blockchains/apps, possibly in a single process
+- State syncing (without transaction replay)
+- Add authentication and rate-limitting to the RPC
+
+IMPROVEMENTS:
+- Improve subtleties around mempool caching and logic
+- Consensus optimizations:
+	- cache block parts for faster agreement after round changes
+	- propagate block parts rarest first
+- Better testing of the consensus state machine (ie. use a DSL)
+- Auto compiled serialization/deserialization code instead of go-wire reflection
+
+BUG FIXES:
+- Graceful handling/recovery for apps that have non-determinism or fail to halt
+- Graceful handling/recovery for violations of safety, or liveness

SECURITY.md

@@ -0,0 +1,71 @@
+# Security
+
+As part of our [Coordinated Vulnerability Disclosure
+Policy](https://tendermint.com/security), we operate a bug bounty.
+See the policy for more details on submissions and rewards.
+
+Here is a list of examples of the kinds of bugs we're most interested in:
+
+## Specification
+
+- Conceptual flaws
+- Ambiguities, inconsistencies, or incorrect statements
+- Mis-match between specification and implementation of any component
+
+## Consensus
+
+Assuming less than 1/3 of the voting power is Byzantine (malicious):
+
+- Validation of blockchain data structures, including blocks, block parts,
+  votes, and so on
+- Execution of blocks
+- Validator set changes
+- Proposer round robin
+- Two nodes committing conflicting blocks for the same height (safety failure)
+- A correct node signing conflicting votes
+- A node halting (liveness failure)
+- Syncing new and old nodes
+
+## Networking
+
+- Authenticated encryption (MITM, information leakage)
+- Eclipse attacks
+- Sybil attacks
+- Long-range attacks
+- Denial-of-Service
+
+## RPC
+
+- Write-access to anything besides sending transactions
+- Denial-of-Service
+- Leakage of secrets
+
+## Denial-of-Service
+
+Attacks may come through the P2P network or the RPC:
+
+- Amplification attacks
+- Resource abuse
+- Deadlocks and race conditions
+- Panics and unhandled errors
+
+## Libraries
+
+- Serialization (Amino)
+- Reading/Writing files and databases
+- Logging and monitoring
+
+## Cryptography
+
+- Elliptic curves for validator signatures
+- Hash algorithms and Merkle trees for block validation
+- Authenticated encryption for P2P connections
+
+## Light Client
+
+- Validation of blockchain data structures
+- Correctly validating an incorrect proof
+- Incorrectly validating a correct proof
+- Syncing validator set changes
+
+

Vagrantfile

@@ -10,31 +10,37 @@ Vagrant.configure("2") do |config|
   end
 
   config.vm.provision "shell", inline: <<-SHELL
-    # add docker repo
-    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
-    add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable"
-
-    # and golang 1.9 support
-    # official repo doesn't have race detection runtime...
-    # add-apt-repository ppa:gophers/archive
-    add-apt-repository ppa:longsleep/golang-backports
+    apt-get update
 
     # install base requirements
-    apt-get update
     apt-get install -y --no-install-recommends wget curl jq zip \
         make shellcheck bsdmainutils psmisc
-    apt-get install -y docker-ce golang-1.9-go
     apt-get install -y language-pack-en
 
+    # install docker
+    apt-get install -y --no-install-recommends apt-transport-https \
+      ca-certificates curl software-properties-common
+    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
+    add-apt-repository \
+      "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
+      $(lsb_release -cs) \
+      stable"
+    apt-get install -y docker-ce
+    usermod -a -G docker vagrant
+
+    # install go
+    wget -q https://dl.google.com/go/go1.10.1.linux-amd64.tar.gz
+    tar -xvf go1.10.1.linux-amd64.tar.gz
+    mv go /usr/local
+    rm -f go1.10.1.linux-amd64.tar.gz
+
     # cleanup
     apt-get autoremove -y
 
-    # needed for docker
-    usermod -a -G docker vagrant
-
     # set env variables
-    echo 'export PATH=$PATH:/usr/lib/go-1.9/bin:/home/vagrant/go/bin' >> /home/vagrant/.bash_profile
+    echo 'export GOROOT=/usr/local/go' >> /home/vagrant/.bash_profile
     echo 'export GOPATH=/home/vagrant/go' >> /home/vagrant/.bash_profile
+    echo 'export PATH=$PATH:$GOROOT/bin:$GOPATH/bin' >> /home/vagrant/.bash_profile
     echo 'export LC_ALL=en_US.UTF-8' >> /home/vagrant/.bash_profile
     echo 'cd go/src/github.com/tendermint/tendermint' >> /home/vagrant/.bash_profile
 

benchmarks/codec_test.go

@@ -32,7 +32,7 @@ func BenchmarkEncodeStatusWire(b *testing.B) {
 			LatestBlockTime:   time.Unix(0, 1234),
 		},
 		ValidatorInfo: ctypes.ValidatorInfo{
-			PubKey:            nodeKey.PubKey(),
+			PubKey: nodeKey.PubKey(),
 		},
 	}
 	b.StartTimer()

blockchain/pool.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"math"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	cmn "github.com/tendermint/tmlibs/common"
@@ -66,11 +67,13 @@ type BlockPool struct {
 	// block requests
 	requesters map[int64]*bpRequester
 	height     int64 // the lowest key in requesters.
-	numPending int32 // number of requests pending assignment or block response
 	// peers
 	peers         map[p2p.ID]*bpPeer
 	maxPeerHeight int64
 
+	// atomic
+	numPending int32 // number of requests pending assignment or block response
+
 	requestsCh chan<- BlockRequest
 	errorsCh   chan<- peerError
 }
@@ -151,7 +154,7 @@ func (pool *BlockPool) GetStatus() (height int64, numPending int32, lenRequester
 	pool.mtx.Lock()
 	defer pool.mtx.Unlock()
 
-	return pool.height, pool.numPending, len(pool.requesters)
+	return pool.height, atomic.LoadInt32(&pool.numPending), len(pool.requesters)
 }
 
 // TODO: relax conditions, prevent abuse.
@@ -245,7 +248,7 @@ func (pool *BlockPool) AddBlock(peerID p2p.ID, block *types.Block, blockSize int
 	}
 
 	if requester.setBlock(block, peerID) {
-		pool.numPending--
+		atomic.AddInt32(&pool.numPending, -1)
 		peer := pool.peers[peerID]
 		if peer != nil {
 			peer.decrPending(blockSize)
@@ -291,10 +294,7 @@ func (pool *BlockPool) RemovePeer(peerID p2p.ID) {
 func (pool *BlockPool) removePeer(peerID p2p.ID) {
 	for _, requester := range pool.requesters {
 		if requester.getPeerID() == peerID {
-			if requester.getBlock() != nil {
-				pool.numPending++
-			}
-			go requester.redo() // pick another peer and ...
+			requester.redo()
 		}
 	}
 	delete(pool.peers, peerID)
@@ -332,7 +332,7 @@ func (pool *BlockPool) makeNextRequester() {
 	// request.SetLogger(pool.Logger.With("height", nextHeight))
 
 	pool.requesters[nextHeight] = request
-	pool.numPending++
+	atomic.AddInt32(&pool.numPending, 1)
 
 	err := request.Start()
 	if err != nil {
@@ -360,7 +360,7 @@ func (pool *BlockPool) sendError(err error, peerID p2p.ID) {
 
 // unused by tendermint; left for debugging purposes
 func (pool *BlockPool) debug() string {
-	pool.mtx.Lock() // Lock
+	pool.mtx.Lock()
 	defer pool.mtx.Unlock()
 
 	str := ""
@@ -466,8 +466,8 @@ func newBPRequester(pool *BlockPool, height int64) *bpRequester {
 	bpr := &bpRequester{
 		pool:       pool,
 		height:     height,
-		gotBlockCh: make(chan struct{}),
-		redoCh:     make(chan struct{}),
+		gotBlockCh: make(chan struct{}, 1),
+		redoCh:     make(chan struct{}, 1),
 
 		peerID: "",
 		block:  nil,
@@ -481,7 +481,7 @@ func (bpr *bpRequester) OnStart() error {
 	return nil
 }
 
-// Returns true if the peer matches
+// Returns true if the peer matches and block doesn't already exist.
 func (bpr *bpRequester) setBlock(block *types.Block, peerID p2p.ID) bool {
 	bpr.mtx.Lock()
 	if bpr.block != nil || bpr.peerID != peerID {
@@ -491,7 +491,10 @@ func (bpr *bpRequester) setBlock(block *types.Block, peerID p2p.ID) bool {
 	bpr.block = block
 	bpr.mtx.Unlock()
 
-	bpr.gotBlockCh <- struct{}{}
+	select {
+	case bpr.gotBlockCh <- struct{}{}:
+	default:
+	}
 	return true
 }
 
@@ -507,17 +510,27 @@ func (bpr *bpRequester) getPeerID() p2p.ID {
 	return bpr.peerID
 }
 
+// This is called from the requestRoutine, upon redo().
 func (bpr *bpRequester) reset() {
 	bpr.mtx.Lock()
+	defer bpr.mtx.Unlock()
+
+	if bpr.block != nil {
+		atomic.AddInt32(&bpr.pool.numPending, 1)
+	}
+
 	bpr.peerID = ""
 	bpr.block = nil
-	bpr.mtx.Unlock()
 }
 
 // Tells bpRequester to pick another peer and try again.
-// NOTE: blocking
+// NOTE: Nonblocking, and does nothing if another redo
+// was already requested.
 func (bpr *bpRequester) redo() {
-	bpr.redoCh <- struct{}{}
+	select {
+	case bpr.redoCh <- struct{}{}:
+	default:
+	}
 }
 
 // Responsible for making more requests as necessary
@@ -546,17 +559,8 @@ OUTER_LOOP:
 
 		// Send request and wait.
 		bpr.pool.sendRequest(bpr.height, peer.id)
-		select {
-		case <-bpr.pool.Quit():
-			bpr.Stop()
-			return
-		case <-bpr.Quit():
-			return
-		case <-bpr.redoCh:
-			bpr.reset()
-			continue OUTER_LOOP // When peer is removed
-		case <-bpr.gotBlockCh:
-			// We got the block, now see if it's good.
+	WAIT_LOOP:
+		for {
 			select {
 			case <-bpr.pool.Quit():
 				bpr.Stop()
@@ -566,6 +570,10 @@ OUTER_LOOP:
 			case <-bpr.redoCh:
 				bpr.reset()
 				continue OUTER_LOOP
+			case <-bpr.gotBlockCh:
+				// We got a block!
+				// Continue the for-loop and wait til Quit.
+				continue WAIT_LOOP
 			}
 		}
 	}

blockchain/reactor_test.go

@@ -1,6 +1,7 @@
 package blockchain
 
 import (
+	"net"
 	"testing"
 
 	cmn "github.com/tendermint/tmlibs/common"
@@ -35,7 +36,7 @@ func newBlockchainReactor(logger log.Logger, maxBlockHeight int64) *BlockchainRe
 	fastSync := true
 	var nilApp proxy.AppConnConsensus
 	blockExec := sm.NewBlockExecutor(dbm.NewMemDB(), log.TestingLogger(), nilApp,
-		types.MockMempool{}, types.MockEvidencePool{})
+		sm.MockMempool{}, sm.MockEvidencePool{})
 
 	bcReactor := NewBlockchainReactor(state.Copy(), blockExec, blockStore, fastSync)
 	bcReactor.SetLogger(logger.With("module", "blockchain"))
@@ -204,3 +205,4 @@ func (tp *bcrTestPeer) IsOutbound() bool                     { return false }
 func (tp *bcrTestPeer) IsPersistent() bool                   { return true }
 func (tp *bcrTestPeer) Get(s string) interface{}             { return s }
 func (tp *bcrTestPeer) Set(string, interface{})              {}
+func (tp *bcrTestPeer) RemoteIP() net.IP                     { return []byte{127, 0, 0, 1} }

blockchain/store_test.go

@@ -97,7 +97,7 @@ func TestBlockStoreSaveLoadBlock(t *testing.T) {
 
 	incompletePartSet := types.NewPartSetFromHeader(types.PartSetHeader{Total: 2})
 	uncontiguousPartSet := types.NewPartSetFromHeader(types.PartSetHeader{Total: 0})
-	uncontiguousPartSet.AddPart(part2, false)
+	uncontiguousPartSet.AddPart(part2)
 
 	header1 := types.Header{
 		Height:  1,

cmd/priv_val_server/main.go

@@ -8,7 +8,7 @@ import (
 	cmn "github.com/tendermint/tmlibs/common"
 	"github.com/tendermint/tmlibs/log"
 
-	priv_val "github.com/tendermint/tendermint/types/priv_validator"
+	"github.com/tendermint/tendermint/privval"
 )
 
 func main() {
@@ -30,13 +30,13 @@ func main() {
 		"privPath", *privValPath,
 	)
 
-	privVal := priv_val.LoadFilePV(*privValPath)
+	pv := privval.LoadFilePV(*privValPath)
 
-	rs := priv_val.NewRemoteSigner(
+	rs := privval.NewRemoteSigner(
 		logger,
 		*chainID,
 		*addr,
-		privVal,
+		pv,
 		crypto.GenPrivKeyEd25519(),
 	)
 	err := rs.Start()

cmd/tendermint/commands/gen_validator.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/spf13/cobra"
 
-	pvm "github.com/tendermint/tendermint/types/priv_validator"
+	"github.com/tendermint/tendermint/privval"
 )
 
 // GenValidatorCmd allows the generation of a keypair for a
@@ -17,7 +17,7 @@ var GenValidatorCmd = &cobra.Command{
 }
 
 func genValidator(cmd *cobra.Command, args []string) {
-	pv := pvm.GenFilePV("")
+	pv := privval.GenFilePV("")
 	jsbz, err := cdc.MarshalJSON(pv)
 	if err != nil {
 		panic(err)

cmd/tendermint/commands/init.go

@@ -1,12 +1,14 @@
 package commands
 
 import (
+	"time"
+
 	"github.com/spf13/cobra"
 
 	cfg "github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/p2p"
+	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tendermint/types"
-	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	cmn "github.com/tendermint/tmlibs/common"
 )
 
@@ -24,12 +26,12 @@ func initFiles(cmd *cobra.Command, args []string) error {
 func initFilesWithConfig(config *cfg.Config) error {
 	// private validator
 	privValFile := config.PrivValidatorFile()
-	var pv *pvm.FilePV
+	var pv *privval.FilePV
 	if cmn.FileExists(privValFile) {
-		pv = pvm.LoadFilePV(privValFile)
+		pv = privval.LoadFilePV(privValFile)
 		logger.Info("Found private validator", "path", privValFile)
 	} else {
-		pv = pvm.GenFilePV(privValFile)
+		pv = privval.GenFilePV(privValFile)
 		pv.Save()
 		logger.Info("Generated private validator", "path", privValFile)
 	}
@@ -50,7 +52,8 @@ func initFilesWithConfig(config *cfg.Config) error {
 		logger.Info("Found genesis file", "path", genFile)
 	} else {
 		genDoc := types.GenesisDoc{
-			ChainID: cmn.Fmt("test-chain-%v", cmn.RandStr(6)),
+			ChainID:     cmn.Fmt("test-chain-%v", cmn.RandStr(6)),
+			GenesisTime: time.Now(),
 		}
 		genDoc.Validators = []types.GenesisValidator{{
 			PubKey: pv.GetPubKey(),

cmd/tendermint/commands/reset_priv_validator.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/spf13/cobra"
 
-	pvm "github.com/tendermint/tendermint/types/priv_validator"
+	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tmlibs/log"
 )
 
@@ -13,14 +13,14 @@ import (
 // instance.
 var ResetAllCmd = &cobra.Command{
 	Use:   "unsafe_reset_all",
-	Short: "(unsafe) Remove all the data and WAL, reset this node's validator",
+	Short: "(unsafe) Remove all the data and WAL, reset this node's validator to genesis state",
 	Run:   resetAll,
 }
 
 // ResetPrivValidatorCmd resets the private validator files.
 var ResetPrivValidatorCmd = &cobra.Command{
 	Use:   "unsafe_reset_priv_validator",
-	Short: "(unsafe) Reset this node's validator",
+	Short: "(unsafe) Reset this node's validator to genesis state",
 	Run:   resetPrivValidator,
 }
 
@@ -32,7 +32,7 @@ func ResetAll(dbDir, privValFile string, logger log.Logger) {
 		logger.Error("Error removing directory", "err", err)
 		return
 	}
-	logger.Info("Removed all data", "dir", dbDir)
+	logger.Info("Removed all blockchain history", "dir", dbDir)
 }
 
 // XXX: this is totally unsafe.
@@ -50,11 +50,11 @@ func resetPrivValidator(cmd *cobra.Command, args []string) {
 func resetFilePV(privValFile string, logger log.Logger) {
 	// Get PrivValidator
 	if _, err := os.Stat(privValFile); err == nil {
-		pv := pvm.LoadFilePV(privValFile)
+		pv := privval.LoadFilePV(privValFile)
 		pv.Reset()
-		logger.Info("Reset PrivValidator", "file", privValFile)
+		logger.Info("Reset PrivValidator to genesis state", "file", privValFile)
 	} else {
-		pv := pvm.GenFilePV(privValFile)
+		pv := privval.GenFilePV(privValFile)
 		pv.Save()
 		logger.Info("Generated PrivValidator", "file", privValFile)
 	}

cmd/tendermint/commands/show_node_id.go

@@ -6,7 +6,6 @@ import (
 	"github.com/spf13/cobra"
 
 	"github.com/tendermint/tendermint/p2p"
-
 )
 
 // ShowNodeIDCmd dumps node's ID to the standard output.

cmd/tendermint/commands/show_validator.go

@@ -2,9 +2,10 @@ package commands
 
 import (
 	"fmt"
+
 	"github.com/spf13/cobra"
 
-	privval "github.com/tendermint/tendermint/types/priv_validator"
+	"github.com/tendermint/tendermint/privval"
 )
 
 // ShowValidatorCmd adds capabilities for showing the validator info.

cmd/tendermint/commands/testnet.go

@@ -12,8 +12,8 @@ import (
 
 	cfg "github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/p2p"
+	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tendermint/types"
-	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	cmn "github.com/tendermint/tmlibs/common"
 )
 
@@ -57,7 +57,18 @@ func init() {
 var TestnetFilesCmd = &cobra.Command{
 	Use:   "testnet",
 	Short: "Initialize files for a Tendermint testnet",
-	RunE:  testnetFiles,
+	Long: `testnet will create "v" + "n" number of directories and populate each with
+necessary files (private validator, genesis, config, etc.).
+
+Note, strict routability for addresses is turned off in the config file.
+
+Optionally, it will fill in persistent_peers list in config file using either hostnames or IPs.
+
+Example:
+
+	tendermint testnet --v 4 --o ./output --populate-persistent-peers --starting-ip-address 192.168.10.2
+	`,
+	RunE: testnetFiles,
 }
 
 func testnetFiles(cmd *cobra.Command, args []string) error {
@@ -78,7 +89,7 @@ func testnetFiles(cmd *cobra.Command, args []string) error {
 		initFilesWithConfig(config)
 
 		pvFile := filepath.Join(nodeDir, config.BaseConfig.PrivValidator)
-		pv := pvm.LoadFilePV(pvFile)
+		pv := privval.LoadFilePV(pvFile)
 		genVals[i] = types.GenesisValidator{
 			PubKey: pv.GetPubKey(),
 			Power:  1,
@@ -162,6 +173,7 @@ func populatePersistentPeersInConfigAndWriteIt(config *cfg.Config) error {
 		nodeDir := filepath.Join(outputDir, cmn.Fmt("%s%d", nodeDirPrefix, i))
 		config.SetRoot(nodeDir)
 		config.P2P.PersistentPeers = persistentPeersList
+		config.P2P.AddrBookStrict = false
 
 		// overwrite default config
 		cfg.WriteConfigFile(filepath.Join(nodeDir, "config", "config.toml"), config)

config/config.go

@@ -7,6 +7,13 @@ import (
 	"time"
 )
 
+const (
+	// FuzzModeDrop is a mode in which we randomly drop reads/writes, connections or sleep
+	FuzzModeDrop = iota
+	// FuzzModeDelay is a mode in which we randomly sleep
+	FuzzModeDelay
+)
+
 // NOTE: Most of the structs & relevant comments + the
 // default configuration options were used to manually
 // generate the config.toml. Please reflect any changes
@@ -287,11 +294,23 @@ type P2PConfig struct {
 	// Does not work if the peer-exchange reactor is disabled.
 	SeedMode bool `mapstructure:"seed_mode"`
 
-	// Authenticated encryption
-	AuthEnc bool `mapstructure:"auth_enc"`
-
-	// Comma separated list of peer IDs to keep private (will not be gossiped to other peers)
+	// Comma separated list of peer IDs to keep private (will not be gossiped to
+	// other peers)
 	PrivatePeerIDs string `mapstructure:"private_peer_ids"`
+
+	// Toggle to disable guard against peers connecting from the same ip.
+	AllowDuplicateIP bool `mapstructure:"allow_duplicate_ip"`
+
+	// Peer connection configuration.
+	HandshakeTimeout time.Duration `mapstructure:"handshake_timeout"`
+	DialTimeout      time.Duration `mapstructure:"dial_timeout"`
+
+	// Testing params.
+	// Force dial to fail
+	TestDialFail bool `mapstructure:"test_dial_fail"`
+	// FUzz connection
+	TestFuzz       bool            `mapstructure:"test_fuzz"`
+	TestFuzzConfig *FuzzConnConfig `mapstructure:"test_fuzz_config"`
 }
 
 // DefaultP2PConfig returns a default configuration for the peer-to-peer layer
@@ -307,7 +326,12 @@ func DefaultP2PConfig() *P2PConfig {
 		RecvRate:                512000, // 500 kB/s
 		PexReactor:              true,
 		SeedMode:                false,
-		AuthEnc:                 true,
+		AllowDuplicateIP:        true, // so non-breaking yet
+		HandshakeTimeout:        20 * time.Second,
+		DialTimeout:             3 * time.Second,
+		TestDialFail:            false,
+		TestFuzz:                false,
+		TestFuzzConfig:          DefaultFuzzConnConfig(),
 	}
 }
 
@@ -317,6 +341,7 @@ func TestP2PConfig() *P2PConfig {
 	cfg.ListenAddress = "tcp://0.0.0.0:36656"
 	cfg.SkipUPNP = true
 	cfg.FlushThrottleTimeout = 10
+	cfg.AllowDuplicateIP = true
 	return cfg
 }
 
@@ -325,6 +350,26 @@ func (cfg *P2PConfig) AddrBookFile() string {
 	return rootify(cfg.AddrBook, cfg.RootDir)
 }
 
+// FuzzConnConfig is a FuzzedConnection configuration.
+type FuzzConnConfig struct {
+	Mode         int
+	MaxDelay     time.Duration
+	ProbDropRW   float64
+	ProbDropConn float64
+	ProbSleep    float64
+}
+
+// DefaultFuzzConnConfig returns the default config.
+func DefaultFuzzConnConfig() *FuzzConnConfig {
+	return &FuzzConnConfig{
+		Mode:         FuzzModeDrop,
+		MaxDelay:     3 * time.Second,
+		ProbDropRW:   0.2,
+		ProbDropConn: 0.00,
+		ProbSleep:    0.00,
+	}
+}
+
 //-----------------------------------------------------------------------------
 // MempoolConfig
 
@@ -335,6 +380,7 @@ type MempoolConfig struct {
 	RecheckEmpty bool   `mapstructure:"recheck_empty"`
 	Broadcast    bool   `mapstructure:"broadcast"`
 	WalPath      string `mapstructure:"wal_dir"`
+	Size         int    `mapstructure:"size"`
 	CacheSize    int    `mapstructure:"cache_size"`
 }
 
@@ -345,6 +391,7 @@ func DefaultMempoolConfig() *MempoolConfig {
 		RecheckEmpty: true,
 		Broadcast:    true,
 		WalPath:      filepath.Join(defaultDataDir, "mempool.wal"),
+		Size:         100000,
 		CacheSize:    100000,
 	}
 }
@@ -367,10 +414,9 @@ func (cfg *MempoolConfig) WalDir() string {
 // ConsensusConfig defines the confuguration for the Tendermint consensus service,
 // including timeouts and details about the WAL and the block structure.
 type ConsensusConfig struct {
-	RootDir  string `mapstructure:"home"`
-	WalPath  string `mapstructure:"wal_file"`
-	WalLight bool   `mapstructure:"wal_light"`
-	walFile  string // overrides WalPath if set
+	RootDir string `mapstructure:"home"`
+	WalPath string `mapstructure:"wal_file"`
+	walFile string // overrides WalPath if set
 
 	// All timeouts are in milliseconds
 	TimeoutPropose        int `mapstructure:"timeout_propose"`
@@ -401,7 +447,6 @@ type ConsensusConfig struct {
 func DefaultConsensusConfig() *ConsensusConfig {
 	return &ConsensusConfig{
 		WalPath:                     filepath.Join(defaultDataDir, "cs.wal", "wal"),
-		WalLight:                    false,
 		TimeoutPropose:              3000,
 		TimeoutProposeDelta:         500,
 		TimeoutPrevote:              1000,

config/toml.go

@@ -37,13 +37,13 @@ func EnsureRoot(rootDir string) {
 
 	// Write default config file if missing.
 	if !cmn.FileExists(configFilePath) {
-		writeDefaultCondigFile(configFilePath)
+		writeDefaultConfigFile(configFilePath)
 	}
 }
 
 // XXX: this func should probably be called by cmd/tendermint/commands/init.go
 // alongside the writing of the genesis.json and priv_validator.json
-func writeDefaultCondigFile(configFilePath string) {
+func writeDefaultConfigFile(configFilePath string) {
 	WriteConfigFile(configFilePath, DefaultConfig())
 }
 
@@ -165,9 +165,6 @@ pex = {{ .P2P.PexReactor }}
 # Does not work if the peer-exchange reactor is disabled.
 seed_mode = {{ .P2P.SeedMode }}
 
-# Authenticated encryption
-auth_enc = {{ .P2P.AuthEnc }}
-
 # Comma separated list of peer IDs to keep private (will not be gossiped to other peers)
 private_peer_ids = "{{ .P2P.PrivatePeerIDs }}"
 
@@ -179,11 +176,16 @@ recheck_empty = {{ .Mempool.RecheckEmpty }}
 broadcast = {{ .Mempool.Broadcast }}
 wal_dir = "{{ .Mempool.WalPath }}"
 
+# size of the mempool
+size = {{ .Mempool.Size }}
+
+# size of the cache (used to filter transactions we saw earlier)
+cache_size = {{ .Mempool.CacheSize }}
+
 ##### consensus configuration options #####
 [consensus]
 
 wal_file = "{{ .Consensus.WalPath }}"
-wal_light = {{ .Consensus.WalLight }}
 
 # All timeouts are in milliseconds
 timeout_propose = {{ .Consensus.TimeoutPropose }}
@@ -267,7 +269,7 @@ func ResetTestRoot(testName string) *Config {
 
 	// Write default config file if missing.
 	if !cmn.FileExists(configFilePath) {
-		writeDefaultCondigFile(configFilePath)
+		writeDefaultConfigFile(configFilePath)
 	}
 	if !cmn.FileExists(genesisFilePath) {
 		cmn.MustWriteFile(genesisFilePath, []byte(testGenesis), 0644)

consensus/README.md

@@ -1,18 +1 @@
-# The core consensus algorithm.
-
-* state.go - The state machine as detailed in the whitepaper
-* reactor.go - A reactor that connects the state machine to the gossip network
-
-# Go-routine summary
-
-The reactor runs 2 go-routines for each added peer: gossipDataRoutine and gossipVotesRoutine.
-
-The consensus state runs two persistent go-routines: timeoutRoutine and receiveRoutine.
-Go-routines are also started to trigger timeouts and to avoid blocking when the internalMsgQueue is really backed up.
-
-# Replay/WAL
-
-A write-ahead log is used to record all messages processed by the receiveRoutine,
-which amounts to all inputs to the consensus state machine:
-messages from peers, messages from ourselves, and timeouts.
-They can be played back deterministically at startup or using the replay console. 
+See the [consensus spec](https://github.com/tendermint/tendermint/tree/master/docs/spec/consensus) and the [reactor consensus spec](https://github.com/tendermint/tendermint/tree/master/docs/spec/reactors/consensus) for more information.

consensus/byzantine_test.go

@@ -27,7 +27,7 @@ func init() {
 // Heal partition and ensure A sees the commit
 func TestByzantine(t *testing.T) {
 	N := 4
-	logger := consensusLogger()
+	logger := consensusLogger().With("test", "byzantine")
 	css := randConsensusNet(N, "consensus_byzantine_test", newMockTickerFunc(false), newCounter)
 
 	// give the byzantine validator a normal ticker
@@ -58,14 +58,11 @@ func TestByzantine(t *testing.T) {
 			css[i].doPrevote = func(height int64, round int) {}
 		}
 
-		eventBus := types.NewEventBus()
+		eventBus := css[i].eventBus
 		eventBus.SetLogger(logger.With("module", "events", "validator", i))
-		err := eventBus.Start()
-		require.NoError(t, err)
-		defer eventBus.Stop()
 
 		eventChans[i] = make(chan interface{}, 1)
-		err = eventBus.Subscribe(context.Background(), testSubscriber, types.EventQueryNewBlock, eventChans[i])
+		err := eventBus.Subscribe(context.Background(), testSubscriber, types.EventQueryNewBlock, eventChans[i])
 		require.NoError(t, err)
 
 		conR := NewConsensusReactor(css[i], true) // so we dont start the consensus states
@@ -105,15 +102,18 @@ func TestByzantine(t *testing.T) {
 		p2p.Connect2Switches(sws, i, j)
 	})
 
-	// start the state machines
-	byzR := reactors[0].(*ByzantineReactor)
-	s := byzR.reactor.conS.GetState()
-	byzR.reactor.SwitchToConsensus(s, 0)
+	// start the non-byz state machines.
+	// note these must be started before the byz
 	for i := 1; i < N; i++ {
 		cr := reactors[i].(*ConsensusReactor)
 		cr.SwitchToConsensus(cr.conS.GetState(), 0)
 	}
 
+	// start the byzantine state machine
+	byzR := reactors[0].(*ByzantineReactor)
+	s := byzR.reactor.conS.GetState()
+	byzR.reactor.SwitchToConsensus(s, 0)
+
 	// byz proposer sends one block to peers[0]
 	// and the other block to peers[1] and peers[2].
 	// note peers and switches order don't match.

consensus/common_test.go

@@ -19,9 +19,9 @@ import (
 	cstypes "github.com/tendermint/tendermint/consensus/types"
 	mempl "github.com/tendermint/tendermint/mempool"
 	"github.com/tendermint/tendermint/p2p"
+	"github.com/tendermint/tendermint/privval"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
-	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	cmn "github.com/tendermint/tmlibs/common"
 	dbm "github.com/tendermint/tmlibs/db"
 	"github.com/tendermint/tmlibs/log"
@@ -262,9 +262,9 @@ func newConsensusStateWithConfigAndBlockStore(thisConfig *cfg.Config, state sm.S
 	}
 
 	// mock the evidence pool
-	evpool := types.MockEvidencePool{}
+	evpool := sm.MockEvidencePool{}
 
-	// Make ConsensusReactor
+	// Make ConsensusState
 	stateDB := dbm.NewMemDB()
 	blockExec := sm.NewBlockExecutor(stateDB, log.TestingLogger(), proxyAppConnCon, mempool, evpool)
 	cs := NewConsensusState(thisConfig.Consensus, state, blockExec, blockStore, mempool, evpool)
@@ -278,10 +278,10 @@ func newConsensusStateWithConfigAndBlockStore(thisConfig *cfg.Config, state sm.S
 	return cs
 }
 
-func loadPrivValidator(config *cfg.Config) *pvm.FilePV {
+func loadPrivValidator(config *cfg.Config) *privval.FilePV {
 	privValidatorFile := config.PrivValidatorFile()
 	ensureDir(path.Dir(privValidatorFile), 0700)
-	privValidator := pvm.LoadOrGenFilePV(privValidatorFile)
+	privValidator := privval.LoadOrGenFilePV(privValidatorFile)
 	privValidator.Reset()
 	return privValidator
 }
@@ -379,7 +379,7 @@ func randConsensusNetWithPeers(nValidators, nPeers int, testName string, tickerF
 			privVal = privVals[i]
 		} else {
 			_, tempFilePath := cmn.Tempfile("priv_validator_")
-			privVal = pvm.GenFilePV(tempFilePath)
+			privVal = privval.GenFilePV(tempFilePath)
 		}
 
 		app := appFunc()

consensus/reactor.go

@@ -1,7 +1,6 @@
 package consensus
 
 import (
-	"context"
 	"fmt"
 	"reflect"
 	"sync"
@@ -14,6 +13,7 @@ import (
 	"github.com/tendermint/tmlibs/log"
 
 	cstypes "github.com/tendermint/tendermint/consensus/types"
+	tmevents "github.com/tendermint/tendermint/libs/events"
 	"github.com/tendermint/tendermint/p2p"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
@@ -43,7 +43,8 @@ type ConsensusReactor struct {
 	eventBus *types.EventBus
 }
 
-// NewConsensusReactor returns a new ConsensusReactor with the given consensusState.
+// NewConsensusReactor returns a new ConsensusReactor with the given
+// consensusState.
 func NewConsensusReactor(consensusState *ConsensusState, fastSync bool) *ConsensusReactor {
 	conR := &ConsensusReactor{
 		conS:     consensusState,
@@ -53,17 +54,15 @@ func NewConsensusReactor(consensusState *ConsensusState, fastSync bool) *Consens
 	return conR
 }
 
-// OnStart implements BaseService.
+// OnStart implements BaseService by subscribing to events, which later will be
+// broadcasted to other peers and starting state if we're not in fast sync.
 func (conR *ConsensusReactor) OnStart() error {
 	conR.Logger.Info("ConsensusReactor ", "fastSync", conR.FastSync())
 	if err := conR.BaseReactor.OnStart(); err != nil {
 		return err
 	}
 
-	err := conR.startBroadcastRoutine()
-	if err != nil {
-		return err
-	}
+	conR.subscribeToBroadcastEvents()
 
 	if !conR.FastSync() {
 		err := conR.conS.Start()
@@ -75,9 +74,11 @@ func (conR *ConsensusReactor) OnStart() error {
 	return nil
 }
 
-// OnStop implements BaseService
+// OnStop implements BaseService by unsubscribing from events and stopping
+// state.
 func (conR *ConsensusReactor) OnStop() {
 	conR.BaseReactor.OnStop()
+	conR.unsubscribeFromBroadcastEvents()
 	conR.conS.Stop()
 }
 
@@ -101,6 +102,7 @@ func (conR *ConsensusReactor) SwitchToConsensus(state sm.State, blocksSynced int
 	err := conR.conS.Start()
 	if err != nil {
 		conR.Logger.Error("Error starting conS", "err", err)
+		return
 	}
 }
 
@@ -210,7 +212,7 @@ func (conR *ConsensusReactor) Receive(chID byte, src p2p.Peer, msgBytes []byte)
 				return
 			}
 			// Peer claims to have a maj23 for some BlockID at H,R,S,
-			err := votes.SetPeerMaj23(msg.Round, msg.Type, ps.Peer.ID(), msg.BlockID)
+			err := votes.SetPeerMaj23(msg.Round, msg.Type, ps.peer.ID(), msg.BlockID)
 			if err != nil {
 				conR.Switch.StopPeerForError(src, err)
 				return
@@ -345,77 +347,40 @@ func (conR *ConsensusReactor) FastSync() bool {
 
 //--------------------------------------
 
-// startBroadcastRoutine subscribes for new round steps, votes and proposal
-// heartbeats using the event bus and starts a go routine to broadcasts events
-// to peers upon receiving them.
-func (conR *ConsensusReactor) startBroadcastRoutine() error {
+// subscribeToBroadcastEvents subscribes for new round steps, votes and
+// proposal heartbeats using internal pubsub defined on state to broadcast
+// them to peers upon receiving.
+func (conR *ConsensusReactor) subscribeToBroadcastEvents() {
 	const subscriber = "consensus-reactor"
-	ctx := context.Background()
+	conR.conS.evsw.AddListenerForEvent(subscriber, types.EventNewRoundStep,
+		func(data tmevents.EventData) {
+			conR.broadcastNewRoundStepMessages(data.(*cstypes.RoundState))
+		})
 
-	// new round steps
-	stepsCh := make(chan interface{})
-	err := conR.eventBus.Subscribe(ctx, subscriber, types.EventQueryNewRoundStep, stepsCh)
-	if err != nil {
-		return errors.Wrapf(err, "failed to subscribe %s to %s", subscriber, types.EventQueryNewRoundStep)
-	}
+	conR.conS.evsw.AddListenerForEvent(subscriber, types.EventVote,
+		func(data tmevents.EventData) {
+			conR.broadcastHasVoteMessage(data.(*types.Vote))
+		})
 
-	// votes
-	votesCh := make(chan interface{})
-	err = conR.eventBus.Subscribe(ctx, subscriber, types.EventQueryVote, votesCh)
-	if err != nil {
-		return errors.Wrapf(err, "failed to subscribe %s to %s", subscriber, types.EventQueryVote)
-	}
-
-	// proposal heartbeats
-	heartbeatsCh := make(chan interface{})
-	err = conR.eventBus.Subscribe(ctx, subscriber, types.EventQueryProposalHeartbeat, heartbeatsCh)
-	if err != nil {
-		return errors.Wrapf(err, "failed to subscribe %s to %s", subscriber, types.EventQueryProposalHeartbeat)
-	}
-
-	go func() {
-		var data interface{}
-		var ok bool
-		for {
-			select {
-			case data, ok = <-stepsCh:
-				if ok { // a receive from a closed channel returns the zero value immediately
-					edrs := data.(types.EventDataRoundState)
-					conR.broadcastNewRoundStep(edrs.RoundState.(*cstypes.RoundState))
-				}
-			case data, ok = <-votesCh:
-				if ok {
-					edv := data.(types.EventDataVote)
-					conR.broadcastHasVoteMessage(edv.Vote)
-				}
-			case data, ok = <-heartbeatsCh:
-				if ok {
-					edph := data.(types.EventDataProposalHeartbeat)
-					conR.broadcastProposalHeartbeatMessage(edph)
-				}
-			case <-conR.Quit():
-				conR.eventBus.UnsubscribeAll(ctx, subscriber)
-				return
-			}
-			if !ok {
-				conR.eventBus.UnsubscribeAll(ctx, subscriber)
-				return
-			}
-		}
-	}()
-
-	return nil
+	conR.conS.evsw.AddListenerForEvent(subscriber, types.EventProposalHeartbeat,
+		func(data tmevents.EventData) {
+			conR.broadcastProposalHeartbeatMessage(data.(*types.Heartbeat))
+		})
 }
 
-func (conR *ConsensusReactor) broadcastProposalHeartbeatMessage(heartbeat types.EventDataProposalHeartbeat) {
-	hb := heartbeat.Heartbeat
+func (conR *ConsensusReactor) unsubscribeFromBroadcastEvents() {
+	const subscriber = "consensus-reactor"
+	conR.conS.evsw.RemoveListener(subscriber)
+}
+
+func (conR *ConsensusReactor) broadcastProposalHeartbeatMessage(hb *types.Heartbeat) {
 	conR.Logger.Debug("Broadcasting proposal heartbeat message",
 		"height", hb.Height, "round", hb.Round, "sequence", hb.Sequence)
 	msg := &ProposalHeartbeatMessage{hb}
 	conR.Switch.Broadcast(StateChannel, cdc.MustMarshalBinaryBare(msg))
 }
 
-func (conR *ConsensusReactor) broadcastNewRoundStep(rs *cstypes.RoundState) {
+func (conR *ConsensusReactor) broadcastNewRoundStepMessages(rs *cstypes.RoundState) {
 	nrsMsg, csMsg := makeRoundStepMessages(rs)
 	if nrsMsg != nil {
 		conR.Switch.Broadcast(StateChannel, cdc.MustMarshalBinaryBare(nrsMsg))
@@ -696,20 +661,37 @@ func (conR *ConsensusReactor) gossipVotesForHeight(logger log.Logger, rs *cstype
 			return true
 		}
 	}
+	// If there are POL prevotes to send...
+	if prs.Step <= cstypes.RoundStepPropose && prs.Round != -1 && prs.Round <= rs.Round && prs.ProposalPOLRound != -1 {
+		if polPrevotes := rs.Votes.Prevotes(prs.ProposalPOLRound); polPrevotes != nil {
+			if ps.PickSendVote(polPrevotes) {
+				logger.Debug("Picked rs.Prevotes(prs.ProposalPOLRound) to send",
+					"round", prs.ProposalPOLRound)
+				return true
+			}
+		}
+	}
 	// If there are prevotes to send...
-	if prs.Step <= cstypes.RoundStepPrevote && prs.Round != -1 && prs.Round <= rs.Round {
+	if prs.Step <= cstypes.RoundStepPrevoteWait && prs.Round != -1 && prs.Round <= rs.Round {
 		if ps.PickSendVote(rs.Votes.Prevotes(prs.Round)) {
 			logger.Debug("Picked rs.Prevotes(prs.Round) to send", "round", prs.Round)
 			return true
 		}
 	}
 	// If there are precommits to send...
-	if prs.Step <= cstypes.RoundStepPrecommit && prs.Round != -1 && prs.Round <= rs.Round {
+	if prs.Step <= cstypes.RoundStepPrecommitWait && prs.Round != -1 && prs.Round <= rs.Round {
 		if ps.PickSendVote(rs.Votes.Precommits(prs.Round)) {
 			logger.Debug("Picked rs.Precommits(prs.Round) to send", "round", prs.Round)
 			return true
 		}
 	}
+	// If there are prevotes to send...Needed because of validBlock mechanism
+	if prs.Round != -1 && prs.Round <= rs.Round {
+		if ps.PickSendVote(rs.Votes.Prevotes(prs.Round)) {
+			logger.Debug("Picked rs.Prevotes(prs.Round) to send", "round", prs.Round)
+			return true
+		}
+	}
 	// If there are POLPrevotes to send...
 	if prs.ProposalPOLRound != -1 {
 		if polPrevotes := rs.Votes.Prevotes(prs.ProposalPOLRound); polPrevotes != nil {
@@ -720,6 +702,7 @@ func (conR *ConsensusReactor) gossipVotesForHeight(logger log.Logger, rs *cstype
 			}
 		}
 	}
+
 	return false
 }
 
@@ -840,41 +823,42 @@ var (
 
 // PeerState contains the known state of a peer, including its connection and
 // threadsafe access to its PeerRoundState.
+// NOTE: THIS GETS DUMPED WITH rpc/core/consensus.go.
+// Be mindful of what you Expose.
 type PeerState struct {
-	Peer   p2p.Peer
+	peer   p2p.Peer
 	logger log.Logger
 
-	mtx sync.Mutex
-	cstypes.PeerRoundState
-
-	stats *peerStateStats
+	mtx   sync.Mutex             `json:"-"`           // NOTE: Modify below using setters, never directly.
+	PRS   cstypes.PeerRoundState `json:"round_state"` // Exposed.
+	Stats *peerStateStats        `json:"stats"`       // Exposed.
 }
 
 // peerStateStats holds internal statistics for a peer.
 type peerStateStats struct {
-	lastVoteHeight int64
-	votes          int
-
-	lastBlockPartHeight int64
-	blockParts          int
+	LastVoteHeight      int64 `json:"last_vote_height"`
+	Votes               int   `json:"votes"`
+	LastBlockPartHeight int64 `json:"last_block_part_height"`
+	BlockParts          int   `json:"block_parts"`
 }
 
 func (pss peerStateStats) String() string {
-	return fmt.Sprintf("peerStateStats{votes: %d, blockParts: %d}", pss.votes, pss.blockParts)
+	return fmt.Sprintf("peerStateStats{lvh: %d, votes: %d, lbph: %d, blockParts: %d}",
+		pss.LastVoteHeight, pss.Votes, pss.LastBlockPartHeight, pss.BlockParts)
 }
 
 // NewPeerState returns a new PeerState for the given Peer
 func NewPeerState(peer p2p.Peer) *PeerState {
 	return &PeerState{
-		Peer:   peer,
+		peer:   peer,
 		logger: log.NewNopLogger(),
-		PeerRoundState: cstypes.PeerRoundState{
+		PRS: cstypes.PeerRoundState{
 			Round:              -1,
 			ProposalPOLRound:   -1,
 			LastCommitRound:    -1,
 			CatchupCommitRound: -1,
 		},
-		stats: &peerStateStats{},
+		Stats: &peerStateStats{},
 	}
 }
 
@@ -891,16 +875,16 @@ func (ps *PeerState) GetRoundState() *cstypes.PeerRoundState {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	prs := ps.PeerRoundState // copy
+	prs := ps.PRS // copy
 	return &prs
 }
 
-// GetRoundStateJSON returns a json of PeerRoundState, marshalled using go-amino.
-func (ps *PeerState) GetRoundStateJSON() ([]byte, error) {
+// ToJSON returns a json of PeerState, marshalled using go-amino.
+func (ps *PeerState) ToJSON() ([]byte, error) {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	return cdc.MarshalJSON(ps.PeerRoundState)
+	return cdc.MarshalJSON(ps)
 }
 
 // GetHeight returns an atomic snapshot of the PeerRoundState's height
@@ -908,7 +892,7 @@ func (ps *PeerState) GetRoundStateJSON() ([]byte, error) {
 func (ps *PeerState) GetHeight() int64 {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
-	return ps.PeerRoundState.Height
+	return ps.PRS.Height
 }
 
 // SetHasProposal sets the given proposal as known for the peer.
@@ -916,18 +900,18 @@ func (ps *PeerState) SetHasProposal(proposal *types.Proposal) {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.Height != proposal.Height || ps.Round != proposal.Round {
+	if ps.PRS.Height != proposal.Height || ps.PRS.Round != proposal.Round {
 		return
 	}
-	if ps.Proposal {
+	if ps.PRS.Proposal {
 		return
 	}
 
-	ps.Proposal = true
-	ps.ProposalBlockPartsHeader = proposal.BlockPartsHeader
-	ps.ProposalBlockParts = cmn.NewBitArray(proposal.BlockPartsHeader.Total)
-	ps.ProposalPOLRound = proposal.POLRound
-	ps.ProposalPOL = nil // Nil until ProposalPOLMessage received.
+	ps.PRS.Proposal = true
+	ps.PRS.ProposalBlockPartsHeader = proposal.BlockPartsHeader
+	ps.PRS.ProposalBlockParts = cmn.NewBitArray(proposal.BlockPartsHeader.Total)
+	ps.PRS.ProposalPOLRound = proposal.POLRound
+	ps.PRS.ProposalPOL = nil // Nil until ProposalPOLMessage received.
 }
 
 // InitProposalBlockParts initializes the peer's proposal block parts header and bit array.
@@ -935,12 +919,12 @@ func (ps *PeerState) InitProposalBlockParts(partsHeader types.PartSetHeader) {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.ProposalBlockParts != nil {
+	if ps.PRS.ProposalBlockParts != nil {
 		return
 	}
 
-	ps.ProposalBlockPartsHeader = partsHeader
-	ps.ProposalBlockParts = cmn.NewBitArray(partsHeader.Total)
+	ps.PRS.ProposalBlockPartsHeader = partsHeader
+	ps.PRS.ProposalBlockParts = cmn.NewBitArray(partsHeader.Total)
 }
 
 // SetHasProposalBlockPart sets the given block part index as known for the peer.
@@ -948,11 +932,11 @@ func (ps *PeerState) SetHasProposalBlockPart(height int64, round int, index int)
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.Height != height || ps.Round != round {
+	if ps.PRS.Height != height || ps.PRS.Round != round {
 		return
 	}
 
-	ps.ProposalBlockParts.SetIndex(index, true)
+	ps.PRS.ProposalBlockParts.SetIndex(index, true)
 }
 
 // PickSendVote picks a vote and sends it to the peer.
@@ -961,7 +945,7 @@ func (ps *PeerState) PickSendVote(votes types.VoteSetReader) bool {
 	if vote, ok := ps.PickVoteToSend(votes); ok {
 		msg := &VoteMessage{vote}
 		ps.logger.Debug("Sending vote message", "ps", ps, "vote", vote)
-		return ps.Peer.Send(VoteChannel, cdc.MustMarshalBinaryBare(msg))
+		return ps.peer.Send(VoteChannel, cdc.MustMarshalBinaryBare(msg))
 	}
 	return false
 }
@@ -1001,40 +985,40 @@ func (ps *PeerState) getVoteBitArray(height int64, round int, type_ byte) *cmn.B
 		return nil
 	}
 
-	if ps.Height == height {
-		if ps.Round == round {
+	if ps.PRS.Height == height {
+		if ps.PRS.Round == round {
 			switch type_ {
 			case types.VoteTypePrevote:
-				return ps.Prevotes
+				return ps.PRS.Prevotes
 			case types.VoteTypePrecommit:
-				return ps.Precommits
+				return ps.PRS.Precommits
 			}
 		}
-		if ps.CatchupCommitRound == round {
+		if ps.PRS.CatchupCommitRound == round {
 			switch type_ {
 			case types.VoteTypePrevote:
 				return nil
 			case types.VoteTypePrecommit:
-				return ps.CatchupCommit
+				return ps.PRS.CatchupCommit
 			}
 		}
-		if ps.ProposalPOLRound == round {
+		if ps.PRS.ProposalPOLRound == round {
 			switch type_ {
 			case types.VoteTypePrevote:
-				return ps.ProposalPOL
+				return ps.PRS.ProposalPOL
 			case types.VoteTypePrecommit:
 				return nil
 			}
 		}
 		return nil
 	}
-	if ps.Height == height+1 {
-		if ps.LastCommitRound == round {
+	if ps.PRS.Height == height+1 {
+		if ps.PRS.LastCommitRound == round {
 			switch type_ {
 			case types.VoteTypePrevote:
 				return nil
 			case types.VoteTypePrecommit:
-				return ps.LastCommit
+				return ps.PRS.LastCommit
 			}
 		}
 		return nil
@@ -1044,7 +1028,7 @@ func (ps *PeerState) getVoteBitArray(height int64, round int, type_ byte) *cmn.B
 
 // 'round': A round for which we have a +2/3 commit.
 func (ps *PeerState) ensureCatchupCommitRound(height int64, round int, numValidators int) {
-	if ps.Height != height {
+	if ps.PRS.Height != height {
 		return
 	}
 	/*
@@ -1054,14 +1038,14 @@ func (ps *PeerState) ensureCatchupCommitRound(height int64, round int, numValida
 			cmn.PanicSanity(cmn.Fmt("Conflicting CatchupCommitRound. Height: %v, Orig: %v, New: %v", height, ps.CatchupCommitRound, round))
 		}
 	*/
-	if ps.CatchupCommitRound == round {
+	if ps.PRS.CatchupCommitRound == round {
 		return // Nothing to do!
 	}
-	ps.CatchupCommitRound = round
-	if round == ps.Round {
-		ps.CatchupCommit = ps.Precommits
+	ps.PRS.CatchupCommitRound = round
+	if round == ps.PRS.Round {
+		ps.PRS.CatchupCommit = ps.PRS.Precommits
 	} else {
-		ps.CatchupCommit = cmn.NewBitArray(numValidators)
+		ps.PRS.CatchupCommit = cmn.NewBitArray(numValidators)
 	}
 }
 
@@ -1076,22 +1060,22 @@ func (ps *PeerState) EnsureVoteBitArrays(height int64, numValidators int) {
 }
 
 func (ps *PeerState) ensureVoteBitArrays(height int64, numValidators int) {
-	if ps.Height == height {
-		if ps.Prevotes == nil {
-			ps.Prevotes = cmn.NewBitArray(numValidators)
+	if ps.PRS.Height == height {
+		if ps.PRS.Prevotes == nil {
+			ps.PRS.Prevotes = cmn.NewBitArray(numValidators)
 		}
-		if ps.Precommits == nil {
-			ps.Precommits = cmn.NewBitArray(numValidators)
+		if ps.PRS.Precommits == nil {
+			ps.PRS.Precommits = cmn.NewBitArray(numValidators)
 		}
-		if ps.CatchupCommit == nil {
-			ps.CatchupCommit = cmn.NewBitArray(numValidators)
+		if ps.PRS.CatchupCommit == nil {
+			ps.PRS.CatchupCommit = cmn.NewBitArray(numValidators)
 		}
-		if ps.ProposalPOL == nil {
-			ps.ProposalPOL = cmn.NewBitArray(numValidators)
+		if ps.PRS.ProposalPOL == nil {
+			ps.PRS.ProposalPOL = cmn.NewBitArray(numValidators)
 		}
-	} else if ps.Height == height+1 {
-		if ps.LastCommit == nil {
-			ps.LastCommit = cmn.NewBitArray(numValidators)
+	} else if ps.PRS.Height == height+1 {
+		if ps.PRS.LastCommit == nil {
+			ps.PRS.LastCommit = cmn.NewBitArray(numValidators)
 		}
 	}
 }
@@ -1103,12 +1087,12 @@ func (ps *PeerState) RecordVote(vote *types.Vote) int {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.stats.lastVoteHeight >= vote.Height {
-		return ps.stats.votes
+	if ps.Stats.LastVoteHeight >= vote.Height {
+		return ps.Stats.Votes
 	}
-	ps.stats.lastVoteHeight = vote.Height
-	ps.stats.votes++
-	return ps.stats.votes
+	ps.Stats.LastVoteHeight = vote.Height
+	ps.Stats.Votes++
+	return ps.Stats.Votes
 }
 
 // VotesSent returns the number of blocks for which peer has been sending us
@@ -1117,7 +1101,7 @@ func (ps *PeerState) VotesSent() int {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	return ps.stats.votes
+	return ps.Stats.Votes
 }
 
 // RecordBlockPart updates internal statistics for this peer by recording the
@@ -1128,13 +1112,13 @@ func (ps *PeerState) RecordBlockPart(bp *BlockPartMessage) int {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.stats.lastBlockPartHeight >= bp.Height {
-		return ps.stats.blockParts
+	if ps.Stats.LastBlockPartHeight >= bp.Height {
+		return ps.Stats.BlockParts
 	}
 
-	ps.stats.lastBlockPartHeight = bp.Height
-	ps.stats.blockParts++
-	return ps.stats.blockParts
+	ps.Stats.LastBlockPartHeight = bp.Height
+	ps.Stats.BlockParts++
+	return ps.Stats.BlockParts
 }
 
 // BlockPartsSent returns the number of blocks for which peer has been sending
@@ -1143,7 +1127,7 @@ func (ps *PeerState) BlockPartsSent() int {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	return ps.stats.blockParts
+	return ps.Stats.BlockParts
 }
 
 // SetHasVote sets the given vote as known by the peer
@@ -1155,7 +1139,7 @@ func (ps *PeerState) SetHasVote(vote *types.Vote) {
 }
 
 func (ps *PeerState) setHasVote(height int64, round int, type_ byte, index int) {
-	logger := ps.logger.With("peerH/R", cmn.Fmt("%d/%d", ps.Height, ps.Round), "H/R", cmn.Fmt("%d/%d", height, round))
+	logger := ps.logger.With("peerH/R", cmn.Fmt("%d/%d", ps.PRS.Height, ps.PRS.Round), "H/R", cmn.Fmt("%d/%d", height, round))
 	logger.Debug("setHasVote", "type", type_, "index", index)
 
 	// NOTE: some may be nil BitArrays -> no side effects.
@@ -1171,51 +1155,51 @@ func (ps *PeerState) ApplyNewRoundStepMessage(msg *NewRoundStepMessage) {
 	defer ps.mtx.Unlock()
 
 	// Ignore duplicates or decreases
-	if CompareHRS(msg.Height, msg.Round, msg.Step, ps.Height, ps.Round, ps.Step) <= 0 {
+	if CompareHRS(msg.Height, msg.Round, msg.Step, ps.PRS.Height, ps.PRS.Round, ps.PRS.Step) <= 0 {
 		return
 	}
 
 	// Just remember these values.
-	psHeight := ps.Height
-	psRound := ps.Round
-	//psStep := ps.Step
-	psCatchupCommitRound := ps.CatchupCommitRound
-	psCatchupCommit := ps.CatchupCommit
+	psHeight := ps.PRS.Height
+	psRound := ps.PRS.Round
+	//psStep := ps.PRS.Step
+	psCatchupCommitRound := ps.PRS.CatchupCommitRound
+	psCatchupCommit := ps.PRS.CatchupCommit
 
 	startTime := time.Now().Add(-1 * time.Duration(msg.SecondsSinceStartTime) * time.Second)
-	ps.Height = msg.Height
-	ps.Round = msg.Round
-	ps.Step = msg.Step
-	ps.StartTime = startTime
+	ps.PRS.Height = msg.Height
+	ps.PRS.Round = msg.Round
+	ps.PRS.Step = msg.Step
+	ps.PRS.StartTime = startTime
 	if psHeight != msg.Height || psRound != msg.Round {
-		ps.Proposal = false
-		ps.ProposalBlockPartsHeader = types.PartSetHeader{}
-		ps.ProposalBlockParts = nil
-		ps.ProposalPOLRound = -1
-		ps.ProposalPOL = nil
+		ps.PRS.Proposal = false
+		ps.PRS.ProposalBlockPartsHeader = types.PartSetHeader{}
+		ps.PRS.ProposalBlockParts = nil
+		ps.PRS.ProposalPOLRound = -1
+		ps.PRS.ProposalPOL = nil
 		// We'll update the BitArray capacity later.
-		ps.Prevotes = nil
-		ps.Precommits = nil
+		ps.PRS.Prevotes = nil
+		ps.PRS.Precommits = nil
 	}
 	if psHeight == msg.Height && psRound != msg.Round && msg.Round == psCatchupCommitRound {
 		// Peer caught up to CatchupCommitRound.
 		// Preserve psCatchupCommit!
 		// NOTE: We prefer to use prs.Precommits if
 		// pr.Round matches pr.CatchupCommitRound.
-		ps.Precommits = psCatchupCommit
+		ps.PRS.Precommits = psCatchupCommit
 	}
 	if psHeight != msg.Height {
 		// Shift Precommits to LastCommit.
 		if psHeight+1 == msg.Height && psRound == msg.LastCommitRound {
-			ps.LastCommitRound = msg.LastCommitRound
-			ps.LastCommit = ps.Precommits
+			ps.PRS.LastCommitRound = msg.LastCommitRound
+			ps.PRS.LastCommit = ps.PRS.Precommits
 		} else {
-			ps.LastCommitRound = msg.LastCommitRound
-			ps.LastCommit = nil
+			ps.PRS.LastCommitRound = msg.LastCommitRound
+			ps.PRS.LastCommit = nil
 		}
 		// We'll update the BitArray capacity later.
-		ps.CatchupCommitRound = -1
-		ps.CatchupCommit = nil
+		ps.PRS.CatchupCommitRound = -1
+		ps.PRS.CatchupCommit = nil
 	}
 }
 
@@ -1224,12 +1208,12 @@ func (ps *PeerState) ApplyCommitStepMessage(msg *CommitStepMessage) {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.Height != msg.Height {
+	if ps.PRS.Height != msg.Height {
 		return
 	}
 
-	ps.ProposalBlockPartsHeader = msg.BlockPartsHeader
-	ps.ProposalBlockParts = msg.BlockParts
+	ps.PRS.ProposalBlockPartsHeader = msg.BlockPartsHeader
+	ps.PRS.ProposalBlockParts = msg.BlockParts
 }
 
 // ApplyProposalPOLMessage updates the peer state for the new proposal POL.
@@ -1237,16 +1221,16 @@ func (ps *PeerState) ApplyProposalPOLMessage(msg *ProposalPOLMessage) {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.Height != msg.Height {
+	if ps.PRS.Height != msg.Height {
 		return
 	}
-	if ps.ProposalPOLRound != msg.ProposalPOLRound {
+	if ps.PRS.ProposalPOLRound != msg.ProposalPOLRound {
 		return
 	}
 
-	// TODO: Merge onto existing ps.ProposalPOL?
+	// TODO: Merge onto existing ps.PRS.ProposalPOL?
 	// We might have sent some prevotes in the meantime.
-	ps.ProposalPOL = msg.ProposalPOL
+	ps.PRS.ProposalPOL = msg.ProposalPOL
 }
 
 // ApplyHasVoteMessage updates the peer state for the new vote.
@@ -1254,7 +1238,7 @@ func (ps *PeerState) ApplyHasVoteMessage(msg *HasVoteMessage) {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 
-	if ps.Height != msg.Height {
+	if ps.PRS.Height != msg.Height {
 		return
 	}
 
@@ -1292,13 +1276,13 @@ func (ps *PeerState) StringIndented(indent string) string {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()
 	return fmt.Sprintf(`PeerState{
-%s  Key   %v
-%s  PRS   %v
-%s  Stats %v
+%s  Key        %v
+%s  RoundState %v
+%s  Stats      %v
 %s}`,
-		indent, ps.Peer.ID(),
-		indent, ps.PeerRoundState.StringIndented(indent+"  "),
-		indent, ps.stats,
+		indent, ps.peer.ID(),
+		indent, ps.PRS.StringIndented(indent+"  "),
+		indent, ps.Stats,
 		indent)
 }
 

consensus/reactor_test.go

@@ -254,7 +254,8 @@ func TestReactorVotingPowerChange(t *testing.T) {
 	logger.Debug("---------------------------- Testing changing the voting power of one validator a few times")
 
 	val1PubKey := css[0].privValidator.GetPubKey()
-	updateValidatorTx := kvstore.MakeValSetChangeTx(val1PubKey.Bytes(), 25)
+	val1PubKeyABCI := types.TM2PB.PubKey(val1PubKey)
+	updateValidatorTx := kvstore.MakeValSetChangeTx(val1PubKeyABCI, 25)
 	previousTotalVotingPower := css[0].GetRoundState().LastValidators.TotalVotingPower()
 
 	waitForAndValidateBlock(t, nVals, activeVals, eventChans, css, updateValidatorTx)
@@ -266,7 +267,7 @@ func TestReactorVotingPowerChange(t *testing.T) {
 		t.Fatalf("expected voting power to change (before: %d, after: %d)", previousTotalVotingPower, css[0].GetRoundState().LastValidators.TotalVotingPower())
 	}
 
-	updateValidatorTx = kvstore.MakeValSetChangeTx(val1PubKey.Bytes(), 2)
+	updateValidatorTx = kvstore.MakeValSetChangeTx(val1PubKeyABCI, 2)
 	previousTotalVotingPower = css[0].GetRoundState().LastValidators.TotalVotingPower()
 
 	waitForAndValidateBlock(t, nVals, activeVals, eventChans, css, updateValidatorTx)
@@ -278,7 +279,7 @@ func TestReactorVotingPowerChange(t *testing.T) {
 		t.Fatalf("expected voting power to change (before: %d, after: %d)", previousTotalVotingPower, css[0].GetRoundState().LastValidators.TotalVotingPower())
 	}
 
-	updateValidatorTx = kvstore.MakeValSetChangeTx(val1PubKey.Bytes(), 26)
+	updateValidatorTx = kvstore.MakeValSetChangeTx(val1PubKeyABCI, 26)
 	previousTotalVotingPower = css[0].GetRoundState().LastValidators.TotalVotingPower()
 
 	waitForAndValidateBlock(t, nVals, activeVals, eventChans, css, updateValidatorTx)
@@ -316,7 +317,8 @@ func TestReactorValidatorSetChanges(t *testing.T) {
 	logger.Info("---------------------------- Testing adding one validator")
 
 	newValidatorPubKey1 := css[nVals].privValidator.GetPubKey()
-	newValidatorTx1 := kvstore.MakeValSetChangeTx(newValidatorPubKey1.Bytes(), testMinPower)
+	valPubKey1ABCI := types.TM2PB.PubKey(newValidatorPubKey1)
+	newValidatorTx1 := kvstore.MakeValSetChangeTx(valPubKey1ABCI, testMinPower)
 
 	// wait till everyone makes block 2
 	// ensure the commit includes all validators
@@ -342,7 +344,8 @@ func TestReactorValidatorSetChanges(t *testing.T) {
 	logger.Info("---------------------------- Testing changing the voting power of one validator")
 
 	updateValidatorPubKey1 := css[nVals].privValidator.GetPubKey()
-	updateValidatorTx1 := kvstore.MakeValSetChangeTx(updateValidatorPubKey1.Bytes(), 25)
+	updatePubKey1ABCI := types.TM2PB.PubKey(updateValidatorPubKey1)
+	updateValidatorTx1 := kvstore.MakeValSetChangeTx(updatePubKey1ABCI, 25)
 	previousTotalVotingPower := css[nVals].GetRoundState().LastValidators.TotalVotingPower()
 
 	waitForAndValidateBlock(t, nPeers, activeVals, eventChans, css, updateValidatorTx1)
@@ -358,10 +361,12 @@ func TestReactorValidatorSetChanges(t *testing.T) {
 	logger.Info("---------------------------- Testing adding two validators at once")
 
 	newValidatorPubKey2 := css[nVals+1].privValidator.GetPubKey()
-	newValidatorTx2 := kvstore.MakeValSetChangeTx(newValidatorPubKey2.Bytes(), testMinPower)
+	newVal2ABCI := types.TM2PB.PubKey(newValidatorPubKey2)
+	newValidatorTx2 := kvstore.MakeValSetChangeTx(newVal2ABCI, testMinPower)
 
 	newValidatorPubKey3 := css[nVals+2].privValidator.GetPubKey()
-	newValidatorTx3 := kvstore.MakeValSetChangeTx(newValidatorPubKey3.Bytes(), testMinPower)
+	newVal3ABCI := types.TM2PB.PubKey(newValidatorPubKey3)
+	newValidatorTx3 := kvstore.MakeValSetChangeTx(newVal3ABCI, testMinPower)
 
 	waitForAndValidateBlock(t, nPeers, activeVals, eventChans, css, newValidatorTx2, newValidatorTx3)
 	waitForAndValidateBlockWithTx(t, nPeers, activeVals, eventChans, css, newValidatorTx2, newValidatorTx3)
@@ -373,8 +378,8 @@ func TestReactorValidatorSetChanges(t *testing.T) {
 	//---------------------------------------------------------------------------
 	logger.Info("---------------------------- Testing removing two validators at once")
 
-	removeValidatorTx2 := kvstore.MakeValSetChangeTx(newValidatorPubKey2.Bytes(), 0)
-	removeValidatorTx3 := kvstore.MakeValSetChangeTx(newValidatorPubKey3.Bytes(), 0)
+	removeValidatorTx2 := kvstore.MakeValSetChangeTx(newVal2ABCI, 0)
+	removeValidatorTx3 := kvstore.MakeValSetChangeTx(newVal3ABCI, 0)
 
 	waitForAndValidateBlock(t, nPeers, activeVals, eventChans, css, removeValidatorTx2, removeValidatorTx3)
 	waitForAndValidateBlockWithTx(t, nPeers, activeVals, eventChans, css, removeValidatorTx2, removeValidatorTx3)

consensus/replay.go

@@ -2,7 +2,6 @@ package consensus
 
 import (
 	"bytes"
-	"encoding/json"
 	"fmt"
 	"hash/crc32"
 	"io"
@@ -26,20 +25,24 @@ import (
 var crc32c = crc32.MakeTable(crc32.Castagnoli)
 
 // Functionality to replay blocks and messages on recovery from a crash.
-// There are two general failure scenarios: failure during consensus, and failure while applying the block.
-// The former is handled by the WAL, the latter by the proxyApp Handshake on restart,
-// which ultimately hands off the work to the WAL.
+// There are two general failure scenarios:
+//
+//  1. failure during consensus
+//  2. failure while applying the block
+//
+// The former is handled by the WAL, the latter by the proxyApp Handshake on
+// restart, which ultimately hands off the work to the WAL.
 
 //-----------------------------------------
-// recover from failure during consensus
-// by replaying messages from the WAL
+// 1. Recover from failure during consensus
+// (by replaying messages from the WAL)
+//-----------------------------------------
 
-// Unmarshal and apply a single message to the consensus state
-// as if it were received in receiveRoutine
-// Lines that start with "#" are ignored.
-// NOTE: receiveRoutine should not be running
+// Unmarshal and apply a single message to the consensus state as if it were
+// received in receiveRoutine.  Lines that start with "#" are ignored.
+// NOTE: receiveRoutine should not be running.
 func (cs *ConsensusState) readReplayMessage(msg *TimedWALMessage, newStepCh chan interface{}) error {
-	// skip meta messages
+	// Skip meta messages which exist for demarcating boundaries.
 	if _, ok := msg.Msg.(EndHeightMessage); ok {
 		return nil
 	}
@@ -89,17 +92,18 @@ func (cs *ConsensusState) readReplayMessage(msg *TimedWALMessage, newStepCh chan
 	return nil
 }
 
-// replay only those messages since the last block.
-// timeoutRoutine should run concurrently to read off tickChan
+// Replay only those messages since the last block.  `timeoutRoutine` should
+// run concurrently to read off tickChan.
 func (cs *ConsensusState) catchupReplay(csHeight int64) error {
-	// set replayMode
+
+	// Set replayMode to true so we don't log signing errors.
 	cs.replayMode = true
 	defer func() { cs.replayMode = false }()
 
-	// Ensure that ENDHEIGHT for this height doesn't exist.
+	// Ensure that #ENDHEIGHT for this height doesn't exist.
 	// NOTE: This is just a sanity check. As far as we know things work fine
 	// without it, and Handshake could reuse ConsensusState if it weren't for
-	// this check (since we can crash after writing ENDHEIGHT).
+	// this check (since we can crash after writing #ENDHEIGHT).
 	//
 	// Ignore data corruption errors since this is a sanity check.
 	gr, found, err := cs.wal.SearchForEndHeight(csHeight, &WALSearchOptions{IgnoreDataCorruptionErrors: true})
@@ -115,7 +119,7 @@ func (cs *ConsensusState) catchupReplay(csHeight int64) error {
 		return fmt.Errorf("WAL should not contain #ENDHEIGHT %d", csHeight)
 	}
 
-	// Search for last height marker
+	// Search for last height marker.
 	//
 	// Ignore data corruption errors in previous heights because we only care about last height
 	gr, found, err = cs.wal.SearchForEndHeight(csHeight-1, &WALSearchOptions{IgnoreDataCorruptionErrors: true})
@@ -182,29 +186,30 @@ func makeHeightSearchFunc(height int64) auto.SearchFunc {
 	}
 }*/
 
-//----------------------------------------------
-// Recover from failure during block processing
-// by handshaking with the app to figure out where
-// we were last and using the WAL to recover there
+//---------------------------------------------------
+// 2. Recover from failure while applying the block.
+// (by handshaking with the app to figure out where
+// we were last, and using the WAL to recover there.)
+//---------------------------------------------------
 
 type Handshaker struct {
 	stateDB      dbm.DB
 	initialState sm.State
-	store        types.BlockStore
-	appState     json.RawMessage
+	store        sm.BlockStore
+	genDoc       *types.GenesisDoc
 	logger       log.Logger
 
 	nBlocks int // number of blocks applied to the state
 }
 
 func NewHandshaker(stateDB dbm.DB, state sm.State,
-	store types.BlockStore, appState json.RawMessage) *Handshaker {
+	store sm.BlockStore, genDoc *types.GenesisDoc) *Handshaker {
 
 	return &Handshaker{
 		stateDB:      stateDB,
 		initialState: state,
 		store:        store,
-		appState:     appState,
+		genDoc:       genDoc,
 		logger:       log.NewNopLogger(),
 		nBlocks:      0,
 	}
@@ -220,7 +225,8 @@ func (h *Handshaker) NBlocks() int {
 
 // TODO: retry the handshake/replay if it fails ?
 func (h *Handshaker) Handshake(proxyApp proxy.AppConns) error {
-	// handshake is done via info request on the query conn
+
+	// Handshake is done via ABCI Info on the query conn.
 	res, err := proxyApp.Query().InfoSync(abci.RequestInfo{version.Version})
 	if err != nil {
 		return fmt.Errorf("Error calling Info: %v", err)
@@ -234,15 +240,16 @@ func (h *Handshaker) Handshake(proxyApp proxy.AppConns) error {
 
 	h.logger.Info("ABCI Handshake", "appHeight", blockHeight, "appHash", fmt.Sprintf("%X", appHash))
 
-	// TODO: check version
+	// TODO: check app version.
 
-	// replay blocks up to the latest in the blockstore
+	// Replay blocks up to the latest in the blockstore.
 	_, err = h.ReplayBlocks(h.initialState, appHash, blockHeight, proxyApp)
 	if err != nil {
 		return fmt.Errorf("Error on replay: %v", err)
 	}
 
-	h.logger.Info("Completed ABCI Handshake - Tendermint and App are synced", "appHeight", blockHeight, "appHash", fmt.Sprintf("%X", appHash))
+	h.logger.Info("Completed ABCI Handshake - Tendermint and App are synced",
+		"appHeight", blockHeight, "appHash", fmt.Sprintf("%X", appHash))
 
 	// TODO: (on restart) replay mempool
 
@@ -250,7 +257,7 @@ func (h *Handshaker) Handshake(proxyApp proxy.AppConns) error {
 }
 
 // Replay all blocks since appBlockHeight and ensure the result matches the current state.
-// Returns the final AppHash or an error
+// Returns the final AppHash or an error.
 func (h *Handshaker) ReplayBlocks(state sm.State, appHash []byte, appBlockHeight int64, proxyApp proxy.AppConns) ([]byte, error) {
 
 	storeBlockHeight := h.store.Height()
@@ -260,14 +267,33 @@ func (h *Handshaker) ReplayBlocks(state sm.State, appHash []byte, appBlockHeight
 	// If appBlockHeight == 0 it means that we are at genesis and hence should send InitChain
 	if appBlockHeight == 0 {
 		validators := types.TM2PB.Validators(state.Validators)
+		csParams := types.TM2PB.ConsensusParams(h.genDoc.ConsensusParams)
 		req := abci.RequestInitChain{
-			Validators:    validators,
-			AppStateBytes: h.appState,
+			Time:            h.genDoc.GenesisTime.Unix(), // TODO
+			ChainId:         h.genDoc.ChainID,
+			ConsensusParams: csParams,
+			Validators:      validators,
+			AppStateBytes:   h.genDoc.AppStateJSON,
 		}
-		_, err := proxyApp.Consensus().InitChainSync(req)
+		res, err := proxyApp.Consensus().InitChainSync(req)
 		if err != nil {
 			return nil, err
 		}
+
+		// if the app returned validators
+		// or consensus params, update the state
+		// with the them
+		if len(res.Validators) > 0 {
+			vals, err := types.PB2TM.Validators(res.Validators)
+			if err != nil {
+				return nil, err
+			}
+			state.Validators = types.NewValidatorSet(vals)
+		}
+		if res.ConsensusParams != nil {
+			state.ConsensusParams = types.PB2TM.ConsensusParams(res.ConsensusParams)
+		}
+		sm.SaveState(h.stateDB, state)
 	}
 
 	// First handle edge cases and constraints on the storeBlockHeight
@@ -314,7 +340,7 @@ func (h *Handshaker) ReplayBlocks(state sm.State, appHash []byte, appBlockHeight
 			// We haven't run Commit (both the state and app are one block behind),
 			// so replayBlock with the real app.
 			// NOTE: We could instead use the cs.WAL on cs.Start,
-			// but we'd have to allow the WAL to replay a block that wrote it's ENDHEIGHT
+			// but we'd have to allow the WAL to replay a block that wrote it's #ENDHEIGHT
 			h.logger.Info("Replay last block using real app")
 			state, err = h.replayBlock(state, storeBlockHeight, proxyApp.Consensus())
 			return state.AppHash, err
@@ -357,7 +383,7 @@ func (h *Handshaker) replayBlocks(state sm.State, proxyApp proxy.AppConns, appBl
 	for i := appBlockHeight + 1; i <= finalBlock; i++ {
 		h.logger.Info("Applying block", "height", i)
 		block := h.store.LoadBlock(i)
-		appHash, err = sm.ExecCommitBlock(proxyApp.Consensus(), block, h.logger)
+		appHash, err = sm.ExecCommitBlock(proxyApp.Consensus(), block, h.logger, state.LastValidators, h.stateDB)
 		if err != nil {
 			return nil, err
 		}
@@ -382,7 +408,7 @@ func (h *Handshaker) replayBlock(state sm.State, height int64, proxyApp proxy.Ap
 	block := h.store.LoadBlock(height)
 	meta := h.store.LoadBlockMeta(height)
 
-	blockExec := sm.NewBlockExecutor(h.stateDB, h.logger, proxyApp, types.MockMempool{}, types.MockEvidencePool{})
+	blockExec := sm.NewBlockExecutor(h.stateDB, h.logger, proxyApp, sm.MockMempool{}, sm.MockEvidencePool{})
 
 	var err error
 	state, err = blockExec.ApplyBlock(state, meta.BlockID, block)

consensus/replay_file.go

@@ -29,6 +29,7 @@ const (
 //--------------------------------------------------------
 // replay messages interactively or all at once
 
+// replay the wal file
 func RunReplayFile(config cfg.BaseConfig, csConfig *cfg.ConsensusConfig, console bool) {
 	consensusState := newConsensusStateForReplay(config, csConfig)
 
@@ -262,7 +263,7 @@ func (pb *playback) replayConsoleLoop() int {
 				case "locked_block":
 					fmt.Printf("%v %v\n", rs.LockedBlockParts.StringShort(), rs.LockedBlock.StringShort())
 				case "votes":
-					fmt.Println(rs.Votes.StringIndented("    "))
+					fmt.Println(rs.Votes.StringIndented("  "))
 
 				default:
 					fmt.Println("Unknown option", tokens[1])
@@ -298,7 +299,7 @@ func newConsensusStateForReplay(config cfg.BaseConfig, csConfig *cfg.ConsensusCo
 	// Create proxyAppConn connection (consensus, mempool, query)
 	clientCreator := proxy.DefaultClientCreator(config.ProxyApp, config.ABCI, config.DBDir())
 	proxyApp := proxy.NewAppConns(clientCreator,
-		NewHandshaker(stateDB, state, blockStore, gdoc.AppState()))
+		NewHandshaker(stateDB, state, blockStore, gdoc))
 	err = proxyApp.Start()
 	if err != nil {
 		cmn.Exit(cmn.Fmt("Error starting proxy app conns: %v", err))
@@ -309,7 +310,7 @@ func newConsensusStateForReplay(config cfg.BaseConfig, csConfig *cfg.ConsensusCo
 		cmn.Exit(cmn.Fmt("Failed to start event bus: %v", err))
 	}
 
-	mempool, evpool := types.MockMempool{}, types.MockEvidencePool{}
+	mempool, evpool := sm.MockMempool{}, sm.MockEvidencePool{}
 	blockExec := sm.NewBlockExecutor(stateDB, log.TestingLogger(), proxyApp.Consensus(), mempool, evpool)
 
 	consensusState := NewConsensusState(csConfig, state.Copy(), blockExec,

consensus/replay_test.go

@@ -13,20 +13,21 @@ import (
 	"testing"
 	"time"
 
+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	"github.com/tendermint/abci/example/kvstore"
 	abci "github.com/tendermint/abci/types"
-	"github.com/tendermint/go-crypto"
+	crypto "github.com/tendermint/go-crypto"
 	auto "github.com/tendermint/tmlibs/autofile"
 	cmn "github.com/tendermint/tmlibs/common"
 	dbm "github.com/tendermint/tmlibs/db"
 
 	cfg "github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tendermint/proxy"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
-	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	"github.com/tendermint/tmlibs/log"
 )
 
@@ -218,15 +219,15 @@ func (e ReachedHeightToStopError) Error() string {
 	return fmt.Sprintf("reached height to stop %d", e.height)
 }
 
-// Save simulate WAL's crashing by sending an error to the panicCh and then
+// Write simulate WAL's crashing by sending an error to the panicCh and then
 // exiting the cs.receiveRoutine.
-func (w *crashingWAL) Save(m WALMessage) {
+func (w *crashingWAL) Write(m WALMessage) {
 	if endMsg, ok := m.(EndHeightMessage); ok {
 		if endMsg.Height == w.heightToStop {
 			w.panicCh <- ReachedHeightToStopError{endMsg.Height}
 			runtime.Goexit()
 		} else {
-			w.next.Save(m)
+			w.next.Write(m)
 		}
 		return
 	}
@@ -238,10 +239,14 @@ func (w *crashingWAL) Save(m WALMessage) {
 		runtime.Goexit()
 	} else {
 		w.msgIndex++
-		w.next.Save(m)
+		w.next.Write(m)
 	}
 }
 
+func (w *crashingWAL) WriteSync(m WALMessage) {
+	w.Write(m)
+}
+
 func (w *crashingWAL) Group() *auto.Group { return w.next.Group() }
 func (w *crashingWAL) SearchForEndHeight(height int64, options *WALSearchOptions) (gr *auto.GroupReader, found bool, err error) {
 	return w.next.SearchForEndHeight(height, options)
@@ -259,8 +264,8 @@ const (
 )
 
 var (
-	mempool = types.MockMempool{}
-	evpool  = types.MockEvidencePool{}
+	mempool = sm.MockMempool{}
+	evpool  = sm.MockEvidencePool{}
 )
 
 //---------------------------------------
@@ -325,9 +330,9 @@ func testHandshakeReplay(t *testing.T, nBlocks int, mode uint) {
 	walFile := tempWALWithData(walBody)
 	config.Consensus.SetWalFile(walFile)
 
-	privVal := pvm.LoadFilePV(config.PrivValidatorFile())
+	privVal := privval.LoadFilePV(config.PrivValidatorFile())
 
-	wal, err := NewWAL(walFile, false)
+	wal, err := NewWAL(walFile)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -362,7 +367,8 @@ func testHandshakeReplay(t *testing.T, nBlocks int, mode uint) {
 	}
 
 	// now start the app using the handshake - it should sync
-	handshaker := NewHandshaker(stateDB, state, store, nil)
+	genDoc, _ := sm.MakeGenesisDocFromFile(config.GenesisFile())
+	handshaker := NewHandshaker(stateDB, state, store, genDoc)
 	proxyApp := proxy.NewAppConns(clientCreator2, handshaker)
 	if err := proxyApp.Start(); err != nil {
 		t.Fatalf("Error starting proxy app connections: %v", err)
@@ -412,10 +418,10 @@ func buildAppStateFromChain(proxyApp proxy.AppConns, stateDB dbm.DB,
 	}
 	defer proxyApp.Stop()
 
-	// TODO: get the genesis bytes (https://github.com/tendermint/tendermint/issues/1224)
-	var genesisBytes []byte
 	validators := types.TM2PB.Validators(state.Validators)
-	if _, err := proxyApp.Consensus().InitChainSync(abci.RequestInitChain{validators, genesisBytes}); err != nil {
+	if _, err := proxyApp.Consensus().InitChainSync(abci.RequestInitChain{
+		Validators: validators,
+	}); err != nil {
 		panic(err)
 	}
 
@@ -449,10 +455,10 @@ func buildTMStateFromChain(config *cfg.Config, stateDB dbm.DB, state sm.State, c
 	}
 	defer proxyApp.Stop()
 
-	// TODO: get the genesis bytes (https://github.com/tendermint/tendermint/issues/1224)
-	var genesisBytes []byte
 	validators := types.TM2PB.Validators(state.Validators)
-	if _, err := proxyApp.Consensus().InitChainSync(abci.RequestInitChain{validators, genesisBytes}); err != nil {
+	if _, err := proxyApp.Consensus().InitChainSync(abci.RequestInitChain{
+		Validators: validators,
+	}); err != nil {
 		panic(err)
 	}
 
@@ -538,7 +544,7 @@ func makeBlockchainFromWAL(wal WAL) ([]*types.Block, []*types.Commit, error) {
 		case *types.PartSetHeader:
 			thisBlockParts = types.NewPartSetFromHeader(*p)
 		case *types.Part:
-			_, err := thisBlockParts.AddPart(p, false)
+			_, err := thisBlockParts.AddPart(p)
 			if err != nil {
 				return nil, nil, err
 			}
@@ -629,3 +635,53 @@ func (bs *mockBlockStore) LoadBlockCommit(height int64) *types.Commit {
 func (bs *mockBlockStore) LoadSeenCommit(height int64) *types.Commit {
 	return bs.commits[height-1]
 }
+
+//----------------------------------------
+
+func TestInitChainUpdateValidators(t *testing.T) {
+	val, _ := types.RandValidator(true, 10)
+	vals := types.NewValidatorSet([]*types.Validator{val})
+	app := &initChainApp{vals: types.TM2PB.Validators(vals)}
+	clientCreator := proxy.NewLocalClientCreator(app)
+
+	config := ResetConfig("proxy_test_")
+	privVal := privval.LoadFilePV(config.PrivValidatorFile())
+	stateDB, state, store := stateAndStore(config, privVal.GetPubKey())
+
+	oldValAddr := state.Validators.Validators[0].Address
+
+	// now start the app using the handshake - it should sync
+	genDoc, _ := sm.MakeGenesisDocFromFile(config.GenesisFile())
+	handshaker := NewHandshaker(stateDB, state, store, genDoc)
+	proxyApp := proxy.NewAppConns(clientCreator, handshaker)
+	if err := proxyApp.Start(); err != nil {
+		t.Fatalf("Error starting proxy app connections: %v", err)
+	}
+	defer proxyApp.Stop()
+
+	// reload the state, check the validator set was updated
+	state = sm.LoadState(stateDB)
+
+	newValAddr := state.Validators.Validators[0].Address
+	expectValAddr := val.Address
+	assert.NotEqual(t, oldValAddr, newValAddr)
+	assert.Equal(t, newValAddr, expectValAddr)
+}
+
+func newInitChainApp(vals []abci.Validator) *initChainApp {
+	return &initChainApp{
+		vals: vals,
+	}
+}
+
+// returns the vals on InitChain
+type initChainApp struct {
+	abci.BaseApplication
+	vals []abci.Validator
+}
+
+func (ica *initChainApp) InitChain(req abci.RequestInitChain) abci.ResponseInitChain {
+	return abci.ResponseInitChain{
+		Validators: ica.vals,
+	}
+}

consensus/state.go

@@ -15,6 +15,7 @@ import (
 
 	cfg "github.com/tendermint/tendermint/config"
 	cstypes "github.com/tendermint/tendermint/consensus/types"
+	tmevents "github.com/tendermint/tendermint/libs/events"
 	"github.com/tendermint/tendermint/p2p"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
@@ -75,9 +76,9 @@ type ConsensusState struct {
 	// services for creating and executing blocks
 	// TODO: encapsulate all of this in one "BlockManager"
 	blockExec  *sm.BlockExecutor
-	blockStore types.BlockStore
-	mempool    types.Mempool
-	evpool     types.EvidencePool
+	blockStore sm.BlockStore
+	mempool    sm.Mempool
+	evpool     sm.EvidencePool
 
 	// internal state
 	mtx sync.Mutex
@@ -110,10 +111,14 @@ type ConsensusState struct {
 
 	// closed when we finish shutting down
 	done chan struct{}
+
+	// synchronous pubsub between consensus state and reactor.
+	// state only emits EventNewRoundStep, EventVote and EventProposalHeartbeat
+	evsw tmevents.EventSwitch
 }
 
 // NewConsensusState returns a new ConsensusState.
-func NewConsensusState(config *cfg.ConsensusConfig, state sm.State, blockExec *sm.BlockExecutor, blockStore types.BlockStore, mempool types.Mempool, evpool types.EvidencePool) *ConsensusState {
+func NewConsensusState(config *cfg.ConsensusConfig, state sm.State, blockExec *sm.BlockExecutor, blockStore sm.BlockStore, mempool sm.Mempool, evpool sm.EvidencePool) *ConsensusState {
 	cs := &ConsensusState{
 		config:           config,
 		blockExec:        blockExec,
@@ -126,6 +131,7 @@ func NewConsensusState(config *cfg.ConsensusConfig, state sm.State, blockExec *s
 		doWALCatchup:     true,
 		wal:              nilWAL{},
 		evpool:           evpool,
+		evsw:             tmevents.NewEventSwitch(),
 	}
 	// set function defaults (may be overwritten before calling Start)
 	cs.decideProposal = cs.defaultDecideProposal
@@ -185,6 +191,14 @@ func (cs *ConsensusState) GetRoundStateJSON() ([]byte, error) {
 	return cdc.MarshalJSON(cs.RoundState)
 }
 
+// GetRoundStateSimpleJSON returns a json of RoundStateSimple, marshalled using go-amino.
+func (cs *ConsensusState) GetRoundStateSimpleJSON() ([]byte, error) {
+	cs.mtx.Lock()
+	defer cs.mtx.Unlock()
+
+	return cdc.MarshalJSON(cs.RoundState.RoundStateSimple())
+}
+
 // GetValidators returns a copy of the current validators.
 func (cs *ConsensusState) GetValidators() (int64, []*types.Validator) {
 	cs.mtx.Lock()
@@ -219,6 +233,10 @@ func (cs *ConsensusState) LoadCommit(height int64) *types.Commit {
 // OnStart implements cmn.Service.
 // It loads the latest state via the WAL, and starts the timeout and receive routines.
 func (cs *ConsensusState) OnStart() error {
+	if err := cs.evsw.Start(); err != nil {
+		return err
+	}
+
 	// we may set the WAL in testing before calling Start,
 	// so only OpenWAL if its still the nilWAL
 	if _, ok := cs.wal.(nilWAL); ok {
@@ -236,8 +254,7 @@ func (cs *ConsensusState) OnStart() error {
 	// NOTE: we will get a build up of garbage go routines
 	// firing on the tockChan until the receiveRoutine is started
 	// to deal with them (by that point, at most one will be valid)
-	err := cs.timeoutTicker.Start()
-	if err != nil {
+	if err := cs.timeoutTicker.Start(); err != nil {
 		return err
 	}
 
@@ -276,6 +293,8 @@ func (cs *ConsensusState) startRoutines(maxSteps int) {
 func (cs *ConsensusState) OnStop() {
 	cs.BaseService.OnStop()
 
+	cs.evsw.Stop()
+
 	cs.timeoutTicker.Stop()
 
 	// Make BaseService.Wait() wait until cs.wal.Wait()
@@ -293,7 +312,7 @@ func (cs *ConsensusState) Wait() {
 
 // OpenWAL opens a file to log all consensus messages and timeouts for deterministic accountability
 func (cs *ConsensusState) OpenWAL(walFile string) (WAL, error) {
-	wal, err := NewWAL(walFile, cs.config.WalLight)
+	wal, err := NewWAL(walFile)
 	if err != nil {
 		cs.Logger.Error("Failed to open WAL for consensus state", "wal", walFile, "err", err)
 		return nil, err
@@ -496,11 +515,12 @@ func (cs *ConsensusState) updateToState(state sm.State) {
 
 func (cs *ConsensusState) newStep() {
 	rs := cs.RoundStateEvent()
-	cs.wal.Save(rs)
+	cs.wal.Write(rs)
 	cs.nSteps++
 	// newStep is called by updateToStep in NewConsensusState before the eventBus is set!
 	if cs.eventBus != nil {
 		cs.eventBus.PublishEventNewRoundStep(rs)
+		cs.evsw.FireEvent(types.EventNewRoundStep, &cs.RoundState)
 	}
 }
 
@@ -534,16 +554,16 @@ func (cs *ConsensusState) receiveRoutine(maxSteps int) {
 		case height := <-cs.mempool.TxsAvailable():
 			cs.handleTxsAvailable(height)
 		case mi = <-cs.peerMsgQueue:
-			cs.wal.Save(mi)
+			cs.wal.Write(mi)
 			// handles proposals, block parts, votes
 			// may generate internal events (votes, complete proposals, 2/3 majorities)
 			cs.handleMsg(mi)
 		case mi = <-cs.internalMsgQueue:
-			cs.wal.Save(mi)
+			cs.wal.WriteSync(mi) // NOTE: fsync
 			// handles proposals, block parts, votes
 			cs.handleMsg(mi)
 		case ti := <-cs.timeoutTicker.Chan(): // tockChan:
-			cs.wal.Save(ti)
+			cs.wal.Write(ti)
 			// if the timeout is relevant to the rs
 			// go to the next step
 			cs.handleTimeout(ti, rs)
@@ -576,8 +596,9 @@ func (cs *ConsensusState) handleMsg(mi msgInfo) {
 		err = cs.setProposal(msg.Proposal)
 	case *BlockPartMessage:
 		// if the proposal is complete, we'll enterPrevote or tryFinalizeCommit
-		_, err = cs.addProposalBlockPart(msg.Height, msg.Part, peerID != "")
+		_, err = cs.addProposalBlockPart(msg.Height, msg.Part)
 		if err != nil && msg.Round != cs.Round {
+			cs.Logger.Debug("Received block part from wrong round", "height", cs.Height, "csRound", cs.Round, "blockRound", msg.Round)
 			err = nil
 		}
 	case *VoteMessage:
@@ -602,7 +623,7 @@ func (cs *ConsensusState) handleMsg(mi msgInfo) {
 		cs.Logger.Error("Unknown msg type", reflect.TypeOf(msg))
 	}
 	if err != nil {
-		cs.Logger.Error("Error with msg", "type", reflect.TypeOf(msg), "peer", peerID, "err", err, "msg", msg)
+		cs.Logger.Error("Error with msg", "height", cs.Height, "round", cs.Round, "type", reflect.TypeOf(msg), "peer", peerID, "err", err, "msg", msg)
 	}
 }
 
@@ -659,16 +680,18 @@ func (cs *ConsensusState) handleTxsAvailable(height int64) {
 // Enter: +2/3 prevotes any or +2/3 precommits for block or any from (height, round)
 // NOTE: cs.StartTime was already set for height.
 func (cs *ConsensusState) enterNewRound(height int64, round int) {
+	logger := cs.Logger.With("height", height, "round", round)
+
 	if cs.Height != height || round < cs.Round || (cs.Round == round && cs.Step != cstypes.RoundStepNewHeight) {
-		cs.Logger.Debug(cmn.Fmt("enterNewRound(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+		logger.Debug(cmn.Fmt("enterNewRound(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 		return
 	}
 
 	if now := time.Now(); cs.StartTime.After(now) {
-		cs.Logger.Info("Need to set a buffer and log message here for sanity.", "startTime", cs.StartTime, "now", now)
+		logger.Info("Need to set a buffer and log message here for sanity.", "startTime", cs.StartTime, "now", now)
 	}
 
-	cs.Logger.Info(cmn.Fmt("enterNewRound(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+	logger.Info(cmn.Fmt("enterNewRound(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 
 	// Increment validators if necessary
 	validators := cs.Validators
@@ -687,6 +710,7 @@ func (cs *ConsensusState) enterNewRound(height int64, round int) {
 		// and meanwhile we might have received a proposal
 		// for round 0.
 	} else {
+		logger.Info("Resetting Proposal info")
 		cs.Proposal = nil
 		cs.ProposalBlock = nil
 		cs.ProposalBlockParts = nil
@@ -740,6 +764,7 @@ func (cs *ConsensusState) proposalHeartbeat(height int64, round int) {
 		}
 		cs.privValidator.SignHeartbeat(chainID, heartbeat)
 		cs.eventBus.PublishEventProposalHeartbeat(types.EventDataProposalHeartbeat{heartbeat})
+		cs.evsw.FireEvent(types.EventProposalHeartbeat, heartbeat)
 		counter++
 		time.Sleep(proposalHeartbeatIntervalSeconds * time.Second)
 	}
@@ -749,11 +774,13 @@ func (cs *ConsensusState) proposalHeartbeat(height int64, round int) {
 // Enter (CreateEmptyBlocks, CreateEmptyBlocksInterval > 0 ): after enterNewRound(height,round), after timeout of CreateEmptyBlocksInterval
 // Enter (!CreateEmptyBlocks) : after enterNewRound(height,round), once txs are in the mempool
 func (cs *ConsensusState) enterPropose(height int64, round int) {
+	logger := cs.Logger.With("height", height, "round", round)
+
 	if cs.Height != height || round < cs.Round || (cs.Round == round && cstypes.RoundStepPropose <= cs.Step) {
-		cs.Logger.Debug(cmn.Fmt("enterPropose(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+		logger.Debug(cmn.Fmt("enterPropose(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 		return
 	}
-	cs.Logger.Info(cmn.Fmt("enterPropose(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+	logger.Info(cmn.Fmt("enterPropose(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 
 	defer func() {
 		// Done enterPropose:
@@ -773,22 +800,22 @@ func (cs *ConsensusState) enterPropose(height int64, round int) {
 
 	// Nothing more to do if we're not a validator
 	if cs.privValidator == nil {
-		cs.Logger.Debug("This node is not a validator")
+		logger.Debug("This node is not a validator")
 		return
 	}
 
 	// if not a validator, we're done
 	if !cs.Validators.HasAddress(cs.privValidator.GetAddress()) {
-		cs.Logger.Debug("This node is not a validator", "addr", cs.privValidator.GetAddress(), "vals", cs.Validators)
+		logger.Debug("This node is not a validator", "addr", cs.privValidator.GetAddress(), "vals", cs.Validators)
 		return
 	}
-	cs.Logger.Debug("This node is a validator")
+	logger.Debug("This node is a validator")
 
 	if cs.isProposer() {
-		cs.Logger.Info("enterPropose: Our turn to propose", "proposer", cs.Validators.GetProposer().Address, "privValidator", cs.privValidator)
+		logger.Info("enterPropose: Our turn to propose", "proposer", cs.Validators.GetProposer().Address, "privValidator", cs.privValidator)
 		cs.decideProposal(height, round)
 	} else {
-		cs.Logger.Info("enterPropose: Not our turn to propose", "proposer", cs.Validators.GetProposer().Address, "privValidator", cs.privValidator)
+		logger.Info("enterPropose: Not our turn to propose", "proposer", cs.Validators.GetProposer().Address, "privValidator", cs.privValidator)
 	}
 }
 
@@ -951,14 +978,16 @@ func (cs *ConsensusState) defaultDoPrevote(height int64, round int) {
 
 // Enter: any +2/3 prevotes at next round.
 func (cs *ConsensusState) enterPrevoteWait(height int64, round int) {
+	logger := cs.Logger.With("height", height, "round", round)
+
 	if cs.Height != height || round < cs.Round || (cs.Round == round && cstypes.RoundStepPrevoteWait <= cs.Step) {
-		cs.Logger.Debug(cmn.Fmt("enterPrevoteWait(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+		logger.Debug(cmn.Fmt("enterPrevoteWait(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 		return
 	}
 	if !cs.Votes.Prevotes(round).HasTwoThirdsAny() {
 		cmn.PanicSanity(cmn.Fmt("enterPrevoteWait(%v/%v), but Prevotes does not have any +2/3 votes", height, round))
 	}
-	cs.Logger.Info(cmn.Fmt("enterPrevoteWait(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+	logger.Info(cmn.Fmt("enterPrevoteWait(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 
 	defer func() {
 		// Done enterPrevoteWait:
@@ -977,12 +1006,14 @@ func (cs *ConsensusState) enterPrevoteWait(height int64, round int) {
 // else, unlock an existing lock and precommit nil if +2/3 of prevotes were nil,
 // else, precommit nil otherwise.
 func (cs *ConsensusState) enterPrecommit(height int64, round int) {
+	logger := cs.Logger.With("height", height, "round", round)
+
 	if cs.Height != height || round < cs.Round || (cs.Round == round && cstypes.RoundStepPrecommit <= cs.Step) {
-		cs.Logger.Debug(cmn.Fmt("enterPrecommit(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+		logger.Debug(cmn.Fmt("enterPrecommit(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 		return
 	}
 
-	cs.Logger.Info(cmn.Fmt("enterPrecommit(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+	logger.Info(cmn.Fmt("enterPrecommit(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 
 	defer func() {
 		// Done enterPrecommit:
@@ -990,23 +1021,24 @@ func (cs *ConsensusState) enterPrecommit(height int64, round int) {
 		cs.newStep()
 	}()
 
+	// check for a polka
 	blockID, ok := cs.Votes.Prevotes(round).TwoThirdsMajority()
 
-	// If we don't have a polka, we must precommit nil
+	// If we don't have a polka, we must precommit nil.
 	if !ok {
 		if cs.LockedBlock != nil {
-			cs.Logger.Info("enterPrecommit: No +2/3 prevotes during enterPrecommit while we're locked. Precommitting nil")
+			logger.Info("enterPrecommit: No +2/3 prevotes during enterPrecommit while we're locked. Precommitting nil")
 		} else {
-			cs.Logger.Info("enterPrecommit: No +2/3 prevotes during enterPrecommit. Precommitting nil.")
+			logger.Info("enterPrecommit: No +2/3 prevotes during enterPrecommit. Precommitting nil.")
 		}
 		cs.signAddVote(types.VoteTypePrecommit, nil, types.PartSetHeader{})
 		return
 	}
 
-	// At this point +2/3 prevoted for a particular block or nil
+	// At this point +2/3 prevoted for a particular block or nil.
 	cs.eventBus.PublishEventPolka(cs.RoundStateEvent())
 
-	// the latest POLRound should be this round
+	// the latest POLRound should be this round.
 	polRound, _ := cs.Votes.POLInfo()
 	if polRound < round {
 		cmn.PanicSanity(cmn.Fmt("This POLRound should be %v but got %", round, polRound))
@@ -1015,9 +1047,9 @@ func (cs *ConsensusState) enterPrecommit(height int64, round int) {
 	// +2/3 prevoted nil. Unlock and precommit nil.
 	if len(blockID.Hash) == 0 {
 		if cs.LockedBlock == nil {
-			cs.Logger.Info("enterPrecommit: +2/3 prevoted for nil.")
+			logger.Info("enterPrecommit: +2/3 prevoted for nil.")
 		} else {
-			cs.Logger.Info("enterPrecommit: +2/3 prevoted for nil. Unlocking")
+			logger.Info("enterPrecommit: +2/3 prevoted for nil. Unlocking")
 			cs.LockedRound = 0
 			cs.LockedBlock = nil
 			cs.LockedBlockParts = nil
@@ -1031,7 +1063,7 @@ func (cs *ConsensusState) enterPrecommit(height int64, round int) {
 
 	// If we're already locked on that block, precommit it, and update the LockedRound
 	if cs.LockedBlock.HashesTo(blockID.Hash) {
-		cs.Logger.Info("enterPrecommit: +2/3 prevoted locked block. Relocking")
+		logger.Info("enterPrecommit: +2/3 prevoted locked block. Relocking")
 		cs.LockedRound = round
 		cs.eventBus.PublishEventRelock(cs.RoundStateEvent())
 		cs.signAddVote(types.VoteTypePrecommit, blockID.Hash, blockID.PartsHeader)
@@ -1040,7 +1072,7 @@ func (cs *ConsensusState) enterPrecommit(height int64, round int) {
 
 	// If +2/3 prevoted for proposal block, stage and precommit it
 	if cs.ProposalBlock.HashesTo(blockID.Hash) {
-		cs.Logger.Info("enterPrecommit: +2/3 prevoted proposal block. Locking", "hash", blockID.Hash)
+		logger.Info("enterPrecommit: +2/3 prevoted proposal block. Locking", "hash", blockID.Hash)
 		// Validate the block.
 		if err := cs.blockExec.ValidateBlock(cs.state, cs.ProposalBlock); err != nil {
 			cmn.PanicConsensus(cmn.Fmt("enterPrecommit: +2/3 prevoted for an invalid block: %v", err))
@@ -1070,14 +1102,16 @@ func (cs *ConsensusState) enterPrecommit(height int64, round int) {
 
 // Enter: any +2/3 precommits for next round.
 func (cs *ConsensusState) enterPrecommitWait(height int64, round int) {
+	logger := cs.Logger.With("height", height, "round", round)
+
 	if cs.Height != height || round < cs.Round || (cs.Round == round && cstypes.RoundStepPrecommitWait <= cs.Step) {
-		cs.Logger.Debug(cmn.Fmt("enterPrecommitWait(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+		logger.Debug(cmn.Fmt("enterPrecommitWait(%v/%v): Invalid args. Current step: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 		return
 	}
 	if !cs.Votes.Precommits(round).HasTwoThirdsAny() {
 		cmn.PanicSanity(cmn.Fmt("enterPrecommitWait(%v/%v), but Precommits does not have any +2/3 votes", height, round))
 	}
-	cs.Logger.Info(cmn.Fmt("enterPrecommitWait(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+	logger.Info(cmn.Fmt("enterPrecommitWait(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
 
 	defer func() {
 		// Done enterPrecommitWait:
@@ -1092,11 +1126,13 @@ func (cs *ConsensusState) enterPrecommitWait(height int64, round int) {
 
 // Enter: +2/3 precommits for block
 func (cs *ConsensusState) enterCommit(height int64, commitRound int) {
+	logger := cs.Logger.With("height", height, "commitRound", commitRound)
+
 	if cs.Height != height || cstypes.RoundStepCommit <= cs.Step {
-		cs.Logger.Debug(cmn.Fmt("enterCommit(%v/%v): Invalid args. Current step: %v/%v/%v", height, commitRound, cs.Height, cs.Round, cs.Step))
+		logger.Debug(cmn.Fmt("enterCommit(%v/%v): Invalid args. Current step: %v/%v/%v", height, commitRound, cs.Height, cs.Round, cs.Step))
 		return
 	}
-	cs.Logger.Info(cmn.Fmt("enterCommit(%v/%v). Current: %v/%v/%v", height, commitRound, cs.Height, cs.Round, cs.Step))
+	logger.Info(cmn.Fmt("enterCommit(%v/%v). Current: %v/%v/%v", height, commitRound, cs.Height, cs.Round, cs.Step))
 
 	defer func() {
 		// Done enterCommit:
@@ -1119,6 +1155,7 @@ func (cs *ConsensusState) enterCommit(height int64, commitRound int) {
 	// Move them over to ProposalBlock if they match the commit hash,
 	// otherwise they'll be cleared in updateToState.
 	if cs.LockedBlock.HashesTo(blockID.Hash) {
+		logger.Info("Commit is for locked block. Set ProposalBlock=LockedBlock", "blockHash", blockID.Hash)
 		cs.ProposalBlock = cs.LockedBlock
 		cs.ProposalBlockParts = cs.LockedBlockParts
 	}
@@ -1126,6 +1163,7 @@ func (cs *ConsensusState) enterCommit(height int64, commitRound int) {
 	// If we don't have the block being committed, set up to get it.
 	if !cs.ProposalBlock.HashesTo(blockID.Hash) {
 		if !cs.ProposalBlockParts.HasHeader(blockID.PartsHeader) {
+			logger.Info("Commit is for a block we don't know about. Set ProposalBlock=nil", "proposal", cs.ProposalBlock.Hash(), "commit", blockID.Hash)
 			// We're getting the wrong block.
 			// Set up ProposalBlockParts and keep waiting.
 			cs.ProposalBlock = nil
@@ -1138,19 +1176,21 @@ func (cs *ConsensusState) enterCommit(height int64, commitRound int) {
 
 // If we have the block AND +2/3 commits for it, finalize.
 func (cs *ConsensusState) tryFinalizeCommit(height int64) {
+	logger := cs.Logger.With("height", height)
+
 	if cs.Height != height {
 		cmn.PanicSanity(cmn.Fmt("tryFinalizeCommit() cs.Height: %v vs height: %v", cs.Height, height))
 	}
 
 	blockID, ok := cs.Votes.Precommits(cs.CommitRound).TwoThirdsMajority()
 	if !ok || len(blockID.Hash) == 0 {
-		cs.Logger.Error("Attempt to finalize failed. There was no +2/3 majority, or +2/3 was for <nil>.", "height", height)
+		logger.Error("Attempt to finalize failed. There was no +2/3 majority, or +2/3 was for <nil>.")
 		return
 	}
 	if !cs.ProposalBlock.HashesTo(blockID.Hash) {
 		// TODO: this happens every time if we're not a validator (ugly logs)
 		// TODO: ^^ wait, why does it matter that we're a validator?
-		cs.Logger.Info("Attempt to finalize failed. We don't have the commit block.", "height", height, "proposal-block", cs.ProposalBlock.Hash(), "commit-block", blockID.Hash)
+		logger.Info("Attempt to finalize failed. We don't have the commit block.", "proposal-block", cs.ProposalBlock.Hash(), "commit-block", blockID.Hash)
 		return
 	}
 
@@ -1201,23 +1241,28 @@ func (cs *ConsensusState) finalizeCommit(height int64) {
 
 	fail.Fail() // XXX
 
-	// Finish writing to the WAL for this height.
-	// NOTE: If we fail before writing this, we'll never write it,
-	// and just recover by running ApplyBlock in the Handshake.
-	// If we moved it before persisting the block, we'd have to allow
-	// WAL replay for blocks with an #ENDHEIGHT
-	// As is, ConsensusState should not be started again
-	// until we successfully call ApplyBlock (ie. here or in Handshake after restart)
-	cs.wal.Save(EndHeightMessage{height})
+	// Write EndHeightMessage{} for this height, implying that the blockstore
+	// has saved the block.
+	//
+	// If we crash before writing this EndHeightMessage{}, we will recover by
+	// running ApplyBlock during the ABCI handshake when we restart.  If we
+	// didn't save the block to the blockstore before writing
+	// EndHeightMessage{}, we'd have to change WAL replay -- currently it
+	// complains about replaying for heights where an #ENDHEIGHT entry already
+	// exists.
+	//
+	// Either way, the ConsensusState should not be resumed until we
+	// successfully call ApplyBlock (ie. later here, or in Handshake after
+	// restart).
+	cs.wal.WriteSync(EndHeightMessage{height}) // NOTE: fsync
 
 	fail.Fail() // XXX
 
-	// Create a copy of the state for staging
-	// and an event cache for txs
+	// Create a copy of the state for staging and an event cache for txs.
 	stateCopy := cs.state.Copy()
 
 	// Execute and commit the block, update and save the state, and update the mempool.
-	// NOTE: the block.AppHash wont reflect these txs until the next block
+	// NOTE The block.AppHash wont reflect these txs until the next block.
 	var err error
 	stateCopy, err = cs.blockExec.ApplyBlock(stateCopy, types.BlockID{block.Hash(), blockParts.Header()}, block)
 	if err != nil {
@@ -1278,23 +1323,26 @@ func (cs *ConsensusState) defaultSetProposal(proposal *types.Proposal) error {
 
 	cs.Proposal = proposal
 	cs.ProposalBlockParts = types.NewPartSetFromHeader(proposal.BlockPartsHeader)
+	cs.Logger.Info("Received proposal", "proposal", proposal)
 	return nil
 }
 
 // NOTE: block is not necessarily valid.
 // Asynchronously triggers either enterPrevote (before we timeout of propose) or tryFinalizeCommit, once we have the full block.
-func (cs *ConsensusState) addProposalBlockPart(height int64, part *types.Part, verify bool) (added bool, err error) {
+func (cs *ConsensusState) addProposalBlockPart(height int64, part *types.Part) (added bool, err error) {
 	// Blocks might be reused, so round mismatch is OK
 	if cs.Height != height {
+		cs.Logger.Debug("Received block part from wrong height", "height", height)
 		return false, nil
 	}
 
 	// We're not expecting a block part.
 	if cs.ProposalBlockParts == nil {
+		cs.Logger.Info("Received a block part when we're not expecting any", "height", height)
 		return false, nil // TODO: bad peer? Return error?
 	}
 
-	added, err = cs.ProposalBlockParts.AddPart(part, verify)
+	added, err = cs.ProposalBlockParts.AddPart(part)
 	if err != nil {
 		return added, err
 	}
@@ -1306,6 +1354,25 @@ func (cs *ConsensusState) addProposalBlockPart(height int64, part *types.Part, v
 		}
 		// NOTE: it's possible to receive complete proposal blocks for future rounds without having the proposal
 		cs.Logger.Info("Received complete proposal block", "height", cs.ProposalBlock.Height, "hash", cs.ProposalBlock.Hash())
+
+		// Update Valid* if we can.
+		prevotes := cs.Votes.Prevotes(cs.Round)
+		blockID, hasTwoThirds := prevotes.TwoThirdsMajority()
+		if hasTwoThirds && !blockID.IsZero() && (cs.ValidRound < cs.Round) {
+			if cs.ProposalBlock.HashesTo(blockID.Hash) {
+				cs.Logger.Info("Updating valid block to new proposal block",
+					"valid-round", cs.Round, "valid-block-hash", cs.ProposalBlock.Hash())
+				cs.ValidRound = cs.Round
+				cs.ValidBlock = cs.ProposalBlock
+				cs.ValidBlockParts = cs.ProposalBlockParts
+			}
+			// TODO: In case there is +2/3 majority in Prevotes set for some
+			// block and cs.ProposalBlock contains different block, either
+			// proposer is faulty or voting power of faulty processes is more
+			// than 1/3. We should trigger in the future accountability
+			// procedure at this point.
+		}
+
 		if cs.Step == cstypes.RoundStepPropose && cs.isProposalComplete() {
 			// Move onto the next step
 			cs.enterPrevote(height, cs.Round)
@@ -1364,6 +1431,7 @@ func (cs *ConsensusState) addVote(vote *types.Vote, peerID p2p.ID) (added bool,
 
 		cs.Logger.Info(cmn.Fmt("Added to lastPrecommits: %v", cs.LastCommit.StringShort()))
 		cs.eventBus.PublishEventVote(types.EventDataVote{vote})
+		cs.evsw.FireEvent(types.EventVote, vote)
 
 		// if we can skip timeoutCommit and have all the votes now,
 		if cs.config.SkipTimeoutCommit && cs.LastCommit.HasAll() {
@@ -1391,38 +1459,50 @@ func (cs *ConsensusState) addVote(vote *types.Vote, peerID p2p.ID) (added bool,
 	}
 
 	cs.eventBus.PublishEventVote(types.EventDataVote{vote})
+	cs.evsw.FireEvent(types.EventVote, vote)
 
 	switch vote.Type {
 	case types.VoteTypePrevote:
 		prevotes := cs.Votes.Prevotes(vote.Round)
 		cs.Logger.Info("Added to prevote", "vote", vote, "prevotes", prevotes.StringShort())
-		blockID, ok := prevotes.TwoThirdsMajority()
-		// First, unlock if prevotes is a valid POL.
-		// >> lockRound < POLRound <= unlockOrChangeLockRound (see spec)
-		// NOTE: If (lockRound < POLRound) but !(POLRound <= unlockOrChangeLockRound),
-		// we'll still enterNewRound(H,vote.R) and enterPrecommit(H,vote.R) to process it
-		// there.
-		if (cs.LockedBlock != nil) && (cs.LockedRound < vote.Round) && (vote.Round <= cs.Round) {
-			if ok && !cs.LockedBlock.HashesTo(blockID.Hash) {
+
+		// If +2/3 prevotes for a block or nil for *any* round:
+		if blockID, ok := prevotes.TwoThirdsMajority(); ok {
+
+			// There was a polka!
+			// If we're locked but this is a recent polka, unlock.
+			// If it matches our ProposalBlock, update the ValidBlock
+
+			// Unlock if `cs.LockedRound < vote.Round <= cs.Round`
+			// NOTE: If vote.Round > cs.Round, we'll deal with it when we get to vote.Round
+			if (cs.LockedBlock != nil) &&
+				(cs.LockedRound < vote.Round) &&
+				(vote.Round <= cs.Round) &&
+				!cs.LockedBlock.HashesTo(blockID.Hash) {
+
 				cs.Logger.Info("Unlocking because of POL.", "lockedRound", cs.LockedRound, "POLRound", vote.Round)
 				cs.LockedRound = 0
 				cs.LockedBlock = nil
 				cs.LockedBlockParts = nil
 				cs.eventBus.PublishEventUnlock(cs.RoundStateEvent())
 			}
-		}
-		// Update ValidBlock
-		if ok && !blockID.IsZero() && !cs.ValidBlock.HashesTo(blockID.Hash) && vote.Round > cs.ValidRound {
-			// update valid value
-			if cs.ProposalBlock.HashesTo(blockID.Hash) {
+
+			// Update Valid* if we can.
+			// NOTE: our proposal block may be nil or not what received a polka..
+			// TODO: we may want to still update the ValidBlock and obtain it via gossipping
+			if !blockID.IsZero() &&
+				(cs.ValidRound < vote.Round) &&
+				(vote.Round <= cs.Round) &&
+				cs.ProposalBlock.HashesTo(blockID.Hash) {
+
+				cs.Logger.Info("Updating ValidBlock because of POL.", "validRound", cs.ValidRound, "POLRound", vote.Round)
 				cs.ValidRound = vote.Round
 				cs.ValidBlock = cs.ProposalBlock
 				cs.ValidBlockParts = cs.ProposalBlockParts
 			}
-			//TODO: We might want to update ValidBlock also in case we don't have that block yet,
-			// and obtain the required block using gossiping
 		}
 
+		// If +2/3 prevotes for *anything* for this or future round:
 		if cs.Round <= vote.Round && prevotes.HasTwoThirdsAny() {
 			// Round-skip over to PrevoteWait or goto Precommit.
 			cs.enterNewRound(height, vote.Round) // if the vote is ahead of us
@@ -1438,6 +1518,7 @@ func (cs *ConsensusState) addVote(vote *types.Vote, peerID p2p.ID) (added bool,
 				cs.enterPrevote(height, cs.Round)
 			}
 		}
+
 	case types.VoteTypePrecommit:
 		precommits := cs.Votes.Precommits(vote.Round)
 		cs.Logger.Info("Added to precommit", "vote", vote, "precommits", precommits.StringShort())

consensus/state_test.go

@@ -11,7 +11,7 @@ import (
 	"github.com/tendermint/tendermint/types"
 	cmn "github.com/tendermint/tmlibs/common"
 	"github.com/tendermint/tmlibs/log"
-	tmpubsub "github.com/tendermint/tmlibs/pubsub"
+	tmpubsub "github.com/tendermint/tendermint/libs/pubsub"
 )
 
 func init() {

consensus/types/height_vote_set.go

@@ -174,6 +174,26 @@ func (hvs *HeightVoteSet) getVoteSet(round int, type_ byte) *types.VoteSet {
 	}
 }
 
+// If a peer claims that it has 2/3 majority for given blockKey, call this.
+// NOTE: if there are too many peers, or too much peer churn,
+// this can cause memory issues.
+// TODO: implement ability to remove peers too
+func (hvs *HeightVoteSet) SetPeerMaj23(round int, type_ byte, peerID p2p.ID, blockID types.BlockID) error {
+	hvs.mtx.Lock()
+	defer hvs.mtx.Unlock()
+	if !types.IsVoteTypeValid(type_) {
+		return fmt.Errorf("SetPeerMaj23: Invalid vote type %v", type_)
+	}
+	voteSet := hvs.getVoteSet(round, type_)
+	if voteSet == nil {
+		return nil // something we don't know about yet
+	}
+	return voteSet.SetPeerMaj23(types.P2PID(peerID), blockID)
+}
+
+//---------------------------------------------------------
+// string and json
+
 func (hvs *HeightVoteSet) String() string {
 	return hvs.StringIndented("")
 }
@@ -207,19 +227,35 @@ func (hvs *HeightVoteSet) StringIndented(indent string) string {
 		indent)
 }
 
-// If a peer claims that it has 2/3 majority for given blockKey, call this.
-// NOTE: if there are too many peers, or too much peer churn,
-// this can cause memory issues.
-// TODO: implement ability to remove peers too
-func (hvs *HeightVoteSet) SetPeerMaj23(round int, type_ byte, peerID p2p.ID, blockID types.BlockID) error {
+func (hvs *HeightVoteSet) MarshalJSON() ([]byte, error) {
 	hvs.mtx.Lock()
 	defer hvs.mtx.Unlock()
-	if !types.IsVoteTypeValid(type_) {
-		return fmt.Errorf("SetPeerMaj23: Invalid vote type %v", type_)
-	}
-	voteSet := hvs.getVoteSet(round, type_)
-	if voteSet == nil {
-		return nil // something we don't know about yet
-	}
-	return voteSet.SetPeerMaj23(types.P2PID(peerID), blockID)
+
+	allVotes := hvs.toAllRoundVotes()
+	return cdc.MarshalJSON(allVotes)
+}
+
+func (hvs *HeightVoteSet) toAllRoundVotes() []roundVotes {
+	totalRounds := hvs.round + 1
+	allVotes := make([]roundVotes, totalRounds)
+	// rounds 0 ~ hvs.round inclusive
+	for round := 0; round < totalRounds; round++ {
+		allVotes[round] = roundVotes{
+			Round:              round,
+			Prevotes:           hvs.roundVoteSets[round].Prevotes.VoteStrings(),
+			PrevotesBitArray:   hvs.roundVoteSets[round].Prevotes.BitArrayString(),
+			Precommits:         hvs.roundVoteSets[round].Precommits.VoteStrings(),
+			PrecommitsBitArray: hvs.roundVoteSets[round].Precommits.BitArrayString(),
+		}
+	}
+	// TODO: all other peer catchup rounds
+	return allVotes
+}
+
+type roundVotes struct {
+	Round              int      `json:"round"`
+	Prevotes           []string `json:"prevotes"`
+	PrevotesBitArray   string   `json:"prevotes_bit_array"`
+	Precommits         []string `json:"precommits"`
+	PrecommitsBitArray string   `json:"precommits_bit_array"`
 }

consensus/types/peer_round_state.go

@@ -0,0 +1,57 @@
+package types
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/tendermint/tendermint/types"
+	cmn "github.com/tendermint/tmlibs/common"
+)
+
+//-----------------------------------------------------------------------------
+
+// PeerRoundState contains the known state of a peer.
+// NOTE: Read-only when returned by PeerState.GetRoundState().
+type PeerRoundState struct {
+	Height                   int64               `json:"height"`                      // Height peer is at
+	Round                    int                 `json:"round"`                       // Round peer is at, -1 if unknown.
+	Step                     RoundStepType       `json:"step"`                        // Step peer is at
+	StartTime                time.Time           `json:"start_time"`                  // Estimated start of round 0 at this height
+	Proposal                 bool                `json:"proposal"`                    // True if peer has proposal for this round
+	ProposalBlockPartsHeader types.PartSetHeader `json:"proposal_block_parts_header"` //
+	ProposalBlockParts       *cmn.BitArray       `json:"proposal_block_parts"`        //
+	ProposalPOLRound         int                 `json:"proposal_pol_round"`          // Proposal's POL round. -1 if none.
+	ProposalPOL              *cmn.BitArray       `json:"proposal_pol"`                // nil until ProposalPOLMessage received.
+	Prevotes                 *cmn.BitArray       `json:"prevotes"`                    // All votes peer has for this round
+	Precommits               *cmn.BitArray       `json:"precommits"`                  // All precommits peer has for this round
+	LastCommitRound          int                 `json:"last_commit_round"`           // Round of commit for last height. -1 if none.
+	LastCommit               *cmn.BitArray       `json:"last_commit"`                 // All commit precommits of commit for last height.
+	CatchupCommitRound       int                 `json:"catchup_commit_round"`        // Round that we have commit for. Not necessarily unique. -1 if none.
+	CatchupCommit            *cmn.BitArray       `json:"catchup_commit"`              // All commit precommits peer has for this height & CatchupCommitRound
+}
+
+// String returns a string representation of the PeerRoundState
+func (prs PeerRoundState) String() string {
+	return prs.StringIndented("")
+}
+
+// StringIndented returns a string representation of the PeerRoundState
+func (prs PeerRoundState) StringIndented(indent string) string {
+	return fmt.Sprintf(`PeerRoundState{
+%s  %v/%v/%v @%v
+%s  Proposal %v -> %v
+%s  POL      %v (round %v)
+%s  Prevotes   %v
+%s  Precommits %v
+%s  LastCommit %v (round %v)
+%s  Catchup    %v (round %v)
+%s}`,
+		indent, prs.Height, prs.Round, prs.Step, prs.StartTime,
+		indent, prs.ProposalBlockPartsHeader, prs.ProposalBlockParts,
+		indent, prs.ProposalPOL, prs.ProposalPOLRound,
+		indent, prs.Prevotes,
+		indent, prs.Precommits,
+		indent, prs.LastCommit, prs.LastCommitRound,
+		indent, prs.CatchupCommit, prs.CatchupCommitRound,
+		indent)
+}

consensus/types/reactor.go

@@ -1,57 +0,0 @@
-package types
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/tendermint/tendermint/types"
-	cmn "github.com/tendermint/tmlibs/common"
-)
-
-//-----------------------------------------------------------------------------
-
-// PeerRoundState contains the known state of a peer.
-// NOTE: Read-only when returned by PeerState.GetRoundState().
-type PeerRoundState struct {
-	Height                   int64               // Height peer is at
-	Round                    int                 // Round peer is at, -1 if unknown.
-	Step                     RoundStepType       // Step peer is at
-	StartTime                time.Time           // Estimated start of round 0 at this height
-	Proposal                 bool                // True if peer has proposal for this round
-	ProposalBlockPartsHeader types.PartSetHeader //
-	ProposalBlockParts       *cmn.BitArray       //
-	ProposalPOLRound         int                 // Proposal's POL round. -1 if none.
-	ProposalPOL              *cmn.BitArray       // nil until ProposalPOLMessage received.
-	Prevotes                 *cmn.BitArray       // All votes peer has for this round
-	Precommits               *cmn.BitArray       // All precommits peer has for this round
-	LastCommitRound          int                 // Round of commit for last height. -1 if none.
-	LastCommit               *cmn.BitArray       // All commit precommits of commit for last height.
-	CatchupCommitRound       int                 // Round that we have commit for. Not necessarily unique. -1 if none.
-	CatchupCommit            *cmn.BitArray       // All commit precommits peer has for this height & CatchupCommitRound
-}
-
-// String returns a string representation of the PeerRoundState
-func (prs PeerRoundState) String() string {
-	return prs.StringIndented("")
-}
-
-// StringIndented returns a string representation of the PeerRoundState
-func (prs PeerRoundState) StringIndented(indent string) string {
-	return fmt.Sprintf(`PeerRoundState{
-%s  %v/%v/%v @%v
-%s  Proposal %v -> %v
-%s  POL      %v (round %v)
-%s  Prevotes   %v
-%s  Precommits %v
-%s  LastCommit %v (round %v)
-%s  Catchup    %v (round %v)
-%s}`,
-		indent, prs.Height, prs.Round, prs.Step, prs.StartTime,
-		indent, prs.ProposalBlockPartsHeader, prs.ProposalBlockParts,
-		indent, prs.ProposalPOL, prs.ProposalPOLRound,
-		indent, prs.Prevotes,
-		indent, prs.Precommits,
-		indent, prs.LastCommit, prs.LastCommitRound,
-		indent, prs.CatchupCommit, prs.CatchupCommitRound,
-		indent)
-}

consensus/types/round_state.go

@@ -1,10 +1,12 @@
 package types
 
 import (
+	"encoding/json"
 	"fmt"
 	"time"
 
 	"github.com/tendermint/tendermint/types"
+	cmn "github.com/tendermint/tmlibs/common"
 )
 
 //-----------------------------------------------------------------------------
@@ -13,6 +15,7 @@ import (
 // RoundStepType enumerates the state of the consensus state machine
 type RoundStepType uint8 // These must be numeric, ordered.
 
+// RoundStepType
 const (
 	RoundStepNewHeight     = RoundStepType(0x01) // Wait til CommitTime + timeoutCommit
 	RoundStepNewRound      = RoundStepType(0x02) // Setup new round and go to RoundStepPropose
@@ -55,37 +58,63 @@ func (rs RoundStepType) String() string {
 // NOTE: Not thread safe. Should only be manipulated by functions downstream
 // of the cs.receiveRoutine
 type RoundState struct {
-	Height             int64 // Height we are working on
-	Round              int
-	Step               RoundStepType
-	StartTime          time.Time
-	CommitTime         time.Time // Subjective time when +2/3 precommits for Block at Round were found
-	Validators         *types.ValidatorSet
-	Proposal           *types.Proposal
-	ProposalBlock      *types.Block
-	ProposalBlockParts *types.PartSet
-	LockedRound        int
-	LockedBlock        *types.Block
-	LockedBlockParts   *types.PartSet
-	ValidRound         int
-	ValidBlock         *types.Block
-	ValidBlockParts    *types.PartSet
-	Votes              *HeightVoteSet
-	CommitRound        int            //
-	LastCommit         *types.VoteSet // Last precommits at Height-1
-	LastValidators     *types.ValidatorSet
+	Height             int64               `json:"height"` // Height we are working on
+	Round              int                 `json:"round"`
+	Step               RoundStepType       `json:"step"`
+	StartTime          time.Time           `json:"start_time"`
+	CommitTime         time.Time           `json:"commit_time"` // Subjective time when +2/3 precommits for Block at Round were found
+	Validators         *types.ValidatorSet `json:"validators"`
+	Proposal           *types.Proposal     `json:"proposal"`
+	ProposalBlock      *types.Block        `json:"proposal_block"`
+	ProposalBlockParts *types.PartSet      `json:"proposal_block_parts"`
+	LockedRound        int                 `json:"locked_round"`
+	LockedBlock        *types.Block        `json:"locked_block"`
+	LockedBlockParts   *types.PartSet      `json:"locked_block_parts"`
+	ValidRound         int                 `json:"valid_round"`       // Last known round with POL for non-nil valid block.
+	ValidBlock         *types.Block        `json:"valid_block"`       // Last known block of POL mentioned above.
+	ValidBlockParts    *types.PartSet      `json:"valid_block_parts"` // Last known block parts of POL metnioned above.
+	Votes              *HeightVoteSet      `json:"votes"`
+	CommitRound        int                 `json:"commit_round"` //
+	LastCommit         *types.VoteSet      `json:"last_commit"`  // Last precommits at Height-1
+	LastValidators     *types.ValidatorSet `json:"last_validators"`
+}
+
+// Compressed version of the RoundState for use in RPC
+type RoundStateSimple struct {
+	HeightRoundStep   string          `json:"height/round/step"`
+	StartTime         time.Time       `json:"start_time"`
+	ProposalBlockHash cmn.HexBytes    `json:"proposal_block_hash"`
+	LockedBlockHash   cmn.HexBytes    `json:"locked_block_hash"`
+	ValidBlockHash    cmn.HexBytes    `json:"valid_block_hash"`
+	Votes             json.RawMessage `json:"height_vote_set"`
+}
+
+// Compress the RoundState to RoundStateSimple
+func (rs *RoundState) RoundStateSimple() RoundStateSimple {
+	votesJSON, err := rs.Votes.MarshalJSON()
+	if err != nil {
+		panic(err)
+	}
+	return RoundStateSimple{
+		HeightRoundStep:   fmt.Sprintf("%d/%d/%d", rs.Height, rs.Round, rs.Step),
+		StartTime:         rs.StartTime,
+		ProposalBlockHash: rs.ProposalBlock.Hash(),
+		LockedBlockHash:   rs.LockedBlock.Hash(),
+		ValidBlockHash:    rs.ValidBlock.Hash(),
+		Votes:             votesJSON,
+	}
 }
 
 // RoundStateEvent returns the H/R/S of the RoundState as an event.
 func (rs *RoundState) RoundStateEvent() types.EventDataRoundState {
 	// XXX: copy the RoundState
 	// if we want to avoid this, we may need synchronous events after all
-	rs_ := *rs
+	rsCopy := *rs
 	edrs := types.EventDataRoundState{
 		Height:     rs.Height,
 		Round:      rs.Round,
 		Step:       rs.Step.String(),
-		RoundState: &rs_,
+		RoundState: &rsCopy,
 	}
 	return edrs
 }
@@ -115,16 +144,16 @@ func (rs *RoundState) StringIndented(indent string) string {
 		indent, rs.Height, rs.Round, rs.Step,
 		indent, rs.StartTime,
 		indent, rs.CommitTime,
-		indent, rs.Validators.StringIndented(indent+"    "),
+		indent, rs.Validators.StringIndented(indent+"  "),
 		indent, rs.Proposal,
 		indent, rs.ProposalBlockParts.StringShort(), rs.ProposalBlock.StringShort(),
 		indent, rs.LockedRound,
 		indent, rs.LockedBlockParts.StringShort(), rs.LockedBlock.StringShort(),
 		indent, rs.ValidRound,
 		indent, rs.ValidBlockParts.StringShort(), rs.ValidBlock.StringShort(),
-		indent, rs.Votes.StringIndented(indent+"    "),
+		indent, rs.Votes.StringIndented(indent+"  "),
 		indent, rs.LastCommit.StringShort(),
-		indent, rs.LastValidators.StringIndented(indent+"    "),
+		indent, rs.LastValidators.StringIndented(indent+"  "),
 		indent)
 }
 

consensus/types/round_state_test.go

@@ -0,0 +1,95 @@
+package types
+
+import (
+	"testing"
+	"time"
+
+	"github.com/tendermint/go-amino"
+	"github.com/tendermint/go-crypto"
+	"github.com/tendermint/tendermint/types"
+	cmn "github.com/tendermint/tmlibs/common"
+)
+
+func BenchmarkRoundStateDeepCopy(b *testing.B) {
+	b.StopTimer()
+
+	// Random validators
+	nval, ntxs := 100, 100
+	vset, _ := types.RandValidatorSet(nval, 1)
+	precommits := make([]*types.Vote, nval)
+	blockID := types.BlockID{
+		Hash: cmn.RandBytes(20),
+		PartsHeader: types.PartSetHeader{
+			Hash: cmn.RandBytes(20),
+		},
+	}
+	sig := crypto.SignatureEd25519{}
+	for i := 0; i < nval; i++ {
+		precommits[i] = &types.Vote{
+			ValidatorAddress: types.Address(cmn.RandBytes(20)),
+			Timestamp:        time.Now(),
+			BlockID:          blockID,
+			Signature:        sig,
+		}
+	}
+	txs := make([]types.Tx, ntxs)
+	for i := 0; i < ntxs; i++ {
+		txs[i] = cmn.RandBytes(100)
+	}
+	// Random block
+	block := &types.Block{
+		Header: &types.Header{
+			ChainID:         cmn.RandStr(12),
+			Time:            time.Now(),
+			LastBlockID:     blockID,
+			LastCommitHash:  cmn.RandBytes(20),
+			DataHash:        cmn.RandBytes(20),
+			ValidatorsHash:  cmn.RandBytes(20),
+			ConsensusHash:   cmn.RandBytes(20),
+			AppHash:         cmn.RandBytes(20),
+			LastResultsHash: cmn.RandBytes(20),
+			EvidenceHash:    cmn.RandBytes(20),
+		},
+		Data: &types.Data{
+			Txs: txs,
+		},
+		Evidence: types.EvidenceData{},
+		LastCommit: &types.Commit{
+			BlockID:    blockID,
+			Precommits: precommits,
+		},
+	}
+	parts := block.MakePartSet(4096)
+	// Random Proposal
+	proposal := &types.Proposal{
+		Timestamp: time.Now(),
+		BlockPartsHeader: types.PartSetHeader{
+			Hash: cmn.RandBytes(20),
+		},
+		POLBlockID: blockID,
+		Signature:  sig,
+	}
+	// Random HeightVoteSet
+	// TODO: hvs :=
+
+	rs := &RoundState{
+		StartTime:          time.Now(),
+		CommitTime:         time.Now(),
+		Validators:         vset,
+		Proposal:           proposal,
+		ProposalBlock:      block,
+		ProposalBlockParts: parts,
+		LockedBlock:        block,
+		LockedBlockParts:   parts,
+		ValidBlock:         block,
+		ValidBlockParts:    parts,
+		Votes:              nil, // TODO
+		LastCommit:         nil, // TODO
+		LastValidators:     vset,
+	}
+	b.StartTimer()
+
+	for i := 0; i < b.N; i++ {
+		amino.DeepCopy(rs)
+	}
+}

consensus/types/wire.go

@@ -0,0 +1,12 @@
+package types
+
+import (
+	"github.com/tendermint/go-amino"
+	"github.com/tendermint/go-crypto"
+)
+
+var cdc = amino.NewCodec()
+
+func init() {
+	crypto.RegisterAmino(cdc)
+}

consensus/wal.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/pkg/errors"
 
-	"github.com/tendermint/go-amino"
+	amino "github.com/tendermint/go-amino"
 	"github.com/tendermint/tendermint/types"
 	auto "github.com/tendermint/tmlibs/autofile"
 	cmn "github.com/tendermint/tmlibs/common"
@@ -50,7 +50,8 @@ func RegisterWALMessages(cdc *amino.Codec) {
 
 // WAL is an interface for any write-ahead logger.
 type WAL interface {
-	Save(WALMessage)
+	Write(WALMessage)
+	WriteSync(WALMessage)
 	Group() *auto.Group
 	SearchForEndHeight(height int64, options *WALSearchOptions) (gr *auto.GroupReader, found bool, err error)
 
@@ -67,12 +68,11 @@ type baseWAL struct {
 	cmn.BaseService
 
 	group *auto.Group
-	light bool // ignore block parts
 
 	enc *WALEncoder
 }
 
-func NewWAL(walFile string, light bool) (*baseWAL, error) {
+func NewWAL(walFile string) (*baseWAL, error) {
 	err := cmn.EnsureDir(filepath.Dir(walFile), 0700)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to ensure WAL directory is in place")
@@ -84,7 +84,6 @@ func NewWAL(walFile string, light bool) (*baseWAL, error) {
 	}
 	wal := &baseWAL{
 		group: group,
-		light: light,
 		enc:   NewWALEncoder(group),
 	}
 	wal.BaseService = *cmn.NewBaseService(nil, "baseWAL", wal)
@@ -100,40 +99,42 @@ func (wal *baseWAL) OnStart() error {
 	if err != nil {
 		return err
 	} else if size == 0 {
-		wal.Save(EndHeightMessage{0})
+		wal.WriteSync(EndHeightMessage{0})
 	}
 	err = wal.group.Start()
 	return err
 }
 
 func (wal *baseWAL) OnStop() {
-	wal.BaseService.OnStop()
 	wal.group.Stop()
+	wal.group.Close()
 }
 
-// called in newStep and for each pass in receiveRoutine
-func (wal *baseWAL) Save(msg WALMessage) {
+// Write is called in newStep and for each receive on the
+// peerMsgQueue and the timeoutTicker.
+// NOTE: does not call fsync()
+func (wal *baseWAL) Write(msg WALMessage) {
 	if wal == nil {
 		return
 	}
 
-	if wal.light {
-		// in light mode we only write new steps, timeouts, and our own votes (no proposals, block parts)
-		if mi, ok := msg.(msgInfo); ok {
-			if mi.PeerID != "" {
-				return
-			}
-		}
-	}
-
 	// Write the wal message
 	if err := wal.enc.Encode(&TimedWALMessage{time.Now(), msg}); err != nil {
-		cmn.PanicQ(cmn.Fmt("Error writing msg to consensus wal: %v \n\nMessage: %v", err, msg))
+		panic(cmn.Fmt("Error writing msg to consensus wal: %v \n\nMessage: %v", err, msg))
+	}
+}
+
+// WriteSync is called when we receive a msg from ourselves
+// so that we write to disk before sending signed messages.
+// NOTE: calls fsync()
+func (wal *baseWAL) WriteSync(msg WALMessage) {
+	if wal == nil {
+		return
 	}
 
-	// TODO: only flush when necessary
+	wal.Write(msg)
 	if err := wal.group.Flush(); err != nil {
-		cmn.PanicQ(cmn.Fmt("Error flushing consensus wal buf to file. Error: %v \n", err))
+		panic(cmn.Fmt("Error flushing consensus wal buf to file. Error: %v \n", err))
 	}
 }
 
@@ -143,13 +144,14 @@ type WALSearchOptions struct {
 	IgnoreDataCorruptionErrors bool
 }
 
-// SearchForEndHeight searches for the EndHeightMessage with the height and
-// returns an auto.GroupReader, whenever it was found or not and an error.
+// SearchForEndHeight searches for the EndHeightMessage with the given height
+// and returns an auto.GroupReader, whenever it was found or not and an error.
 // Group reader will be nil if found equals false.
 //
 // CONTRACT: caller must close group reader.
 func (wal *baseWAL) SearchForEndHeight(height int64, options *WALSearchOptions) (gr *auto.GroupReader, found bool, err error) {
 	var msg *TimedWALMessage
+	lastHeightFound := int64(-1)
 
 	// NOTE: starting from the last file in the group because we're usually
 	// searching for the last height. See replay.go
@@ -165,17 +167,25 @@ func (wal *baseWAL) SearchForEndHeight(height int64, options *WALSearchOptions)
 		for {
 			msg, err = dec.Decode()
 			if err == io.EOF {
+				// OPTIMISATION: no need to look for height in older files if we've seen h < height
+				if lastHeightFound > 0 && lastHeightFound < height {
+					gr.Close()
+					return nil, false, nil
+				}
 				// check next file
 				break
 			}
 			if options.IgnoreDataCorruptionErrors && IsDataCorruptionError(err) {
+				wal.Logger.Debug("Corrupted entry. Skipping...", "err", err)
 				// do nothing
+				continue
 			} else if err != nil {
 				gr.Close()
 				return nil, false, err
 			}
 
 			if m, ok := msg.Msg.(EndHeightMessage); ok {
+				lastHeightFound = m.Height
 				if m.Height == height { // found
 					wal.Logger.Debug("Found", "height", height, "index", index)
 					return gr, true, nil
@@ -270,23 +280,17 @@ func (dec *WALDecoder) Decode() (*TimedWALMessage, error) {
 
 	b = make([]byte, 4)
 	_, err = dec.rd.Read(b)
-	if err == io.EOF {
-		return nil, err
-	}
 	if err != nil {
 		return nil, fmt.Errorf("failed to read length: %v", err)
 	}
 	length := binary.BigEndian.Uint32(b)
 
 	if length > maxMsgSizeBytes {
-		return nil, DataCorruptionError{fmt.Errorf("length %d exceeded maximum possible value of %d bytes", length, maxMsgSizeBytes)}
+		return nil, fmt.Errorf("length %d exceeded maximum possible value of %d bytes", length, maxMsgSizeBytes)
 	}
 
 	data := make([]byte, length)
 	_, err = dec.rd.Read(data)
-	if err == io.EOF {
-		return nil, err
-	}
 	if err != nil {
 		return nil, fmt.Errorf("failed to read data: %v", err)
 	}
@@ -308,8 +312,9 @@ func (dec *WALDecoder) Decode() (*TimedWALMessage, error) {
 
 type nilWAL struct{}
 
-func (nilWAL) Save(m WALMessage)  {}
-func (nilWAL) Group() *auto.Group { return nil }
+func (nilWAL) Write(m WALMessage)     {}
+func (nilWAL) WriteSync(m WALMessage) {}
+func (nilWAL) Group() *auto.Group     { return nil }
 func (nilWAL) SearchForEndHeight(height int64, options *WALSearchOptions) (gr *auto.GroupReader, found bool, err error) {
 	return nil, false, nil
 }

consensus/wal_generator.go

@@ -13,10 +13,10 @@ import (
 	"github.com/tendermint/abci/example/kvstore"
 	bc "github.com/tendermint/tendermint/blockchain"
 	cfg "github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tendermint/proxy"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
-	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	auto "github.com/tendermint/tmlibs/autofile"
 	cmn "github.com/tendermint/tmlibs/common"
 	"github.com/tendermint/tmlibs/db"
@@ -40,7 +40,7 @@ func WALWithNBlocks(numBlocks int) (data []byte, err error) {
 	// COPY PASTE FROM node.go WITH A FEW MODIFICATIONS
 	// NOTE: we can't import node package because of circular dependency
 	privValidatorFile := config.PrivValidatorFile()
-	privValidator := pvm.LoadOrGenFilePV(privValidatorFile)
+	privValidator := privval.LoadOrGenFilePV(privValidatorFile)
 	genDoc, err := types.GenesisDocFromFile(config.GenesisFile())
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to read genesis file")
@@ -52,7 +52,7 @@ func WALWithNBlocks(numBlocks int) (data []byte, err error) {
 		return nil, errors.Wrap(err, "failed to make genesis state")
 	}
 	blockStore := bc.NewBlockStore(blockStoreDB)
-	handshaker := NewHandshaker(stateDB, state, blockStore, genDoc.AppState())
+	handshaker := NewHandshaker(stateDB, state, blockStore, genDoc)
 	proxyApp := proxy.NewAppConns(proxy.NewLocalClientCreator(app), handshaker)
 	proxyApp.SetLogger(logger.With("module", "proxy"))
 	if err := proxyApp.Start(); err != nil {
@@ -65,8 +65,8 @@ func WALWithNBlocks(numBlocks int) (data []byte, err error) {
 		return nil, errors.Wrap(err, "failed to start event bus")
 	}
 	defer eventBus.Stop()
-	mempool := types.MockMempool{}
-	evpool := types.MockEvidencePool{}
+	mempool := sm.MockMempool{}
+	evpool := sm.MockEvidencePool{}
 	blockExec := sm.NewBlockExecutor(stateDB, log.TestingLogger(), proxyApp.Consensus(), mempool, evpool)
 	consensusState := NewConsensusState(config.Consensus, state.Copy(), blockExec, blockStore, mempool, evpool)
 	consensusState.SetLogger(logger)
@@ -83,7 +83,7 @@ func WALWithNBlocks(numBlocks int) (data []byte, err error) {
 	numBlocksWritten := make(chan struct{})
 	wal := newByteBufferWAL(logger, NewWALEncoder(wr), int64(numBlocks), numBlocksWritten)
 	// see wal.go#103
-	wal.Save(EndHeightMessage{0})
+	wal.Write(EndHeightMessage{0})
 	consensusState.wal = wal
 
 	if err := consensusState.Start(); err != nil {
@@ -166,7 +166,7 @@ func newByteBufferWAL(logger log.Logger, enc *WALEncoder, nBlocks int64, signalS
 // Save writes message to the internal buffer except when heightToStop is
 // reached, in which case it will signal the caller via signalWhenStopsTo and
 // skip writing.
-func (w *byteBufferWAL) Save(m WALMessage) {
+func (w *byteBufferWAL) Write(m WALMessage) {
 	if w.stopped {
 		w.logger.Debug("WAL already stopped. Not writing message", "msg", m)
 		return
@@ -189,6 +189,10 @@ func (w *byteBufferWAL) Save(m WALMessage) {
 	}
 }
 
+func (w *byteBufferWAL) WriteSync(m WALMessage) {
+	w.Write(m)
+}
+
 func (w *byteBufferWAL) Group() *auto.Group {
 	panic("not implemented")
 }

consensus/wal_test.go

@@ -47,7 +47,7 @@ func TestWALSearchForEndHeight(t *testing.T) {
 	}
 	walFile := tempWALWithData(walBody)
 
-	wal, err := NewWAL(walFile, false)
+	wal, err := NewWAL(walFile)
 	if err != nil {
 		t.Fatal(err)
 	}

docker-compose.yml

@@ -8,9 +8,9 @@ services:
       - "46656-46657:46656-46657"
     environment:
       - ID=0
-      - LOG=${LOG:-tendermint.log}
+      - LOG=$${LOG:-tendermint.log}
     volumes:
-      - ${FOLDER:-./build}:/tendermint:Z
+      - ./build:/tendermint:Z
     networks:
       localnet:
         ipv4_address: 192.167.10.2
@@ -22,9 +22,9 @@ services:
       - "46659-46660:46656-46657"
     environment:
       - ID=1
-      - LOG=${LOG:-tendermint.log}
+      - LOG=$${LOG:-tendermint.log}
     volumes:
-      - ${FOLDER:-./build}:/tendermint:Z
+      - ./build:/tendermint:Z
     networks:
       localnet:
         ipv4_address: 192.167.10.3
@@ -34,11 +34,11 @@ services:
     image: "tendermint/localnode"
     environment:
       - ID=2
-      - LOG=${LOG:-tendermint.log}
+      - LOG=$${LOG:-tendermint.log}
     ports:
       - "46661-46662:46656-46657"
     volumes:
-      - ${FOLDER:-./build}:/tendermint:Z
+      - ./build:/tendermint:Z
     networks:
       localnet:
         ipv4_address: 192.167.10.4
@@ -48,11 +48,11 @@ services:
     image: "tendermint/localnode"
     environment:
       - ID=3
-      - LOG=${LOG:-tendermint.log}
+      - LOG=$${LOG:-tendermint.log}
     ports:
       - "46663-46664:46656-46657"
     volumes:
-      - ${FOLDER:-./build}:/tendermint:Z
+      - ./build:/tendermint:Z
     networks:
       localnet:
         ipv4_address: 192.167.10.5

docker-compose/README.rst

@@ -1,40 +0,0 @@
-localnode
-=========
-
-It is assumed that you have already `setup docker <https://docs.docker.com/engine/installation/>`__.
-
-Description
------------
-Image for local testnets.
-
-Add the tendermint binary to the image by attaching it in a folder to the `/tendermint` mount point.
-
-It assumes that the configuration was created by the `tendermint testnet` command and it is also attached to the `/tendermint` mount point.
-
-Example:
-This example builds a linux tendermint binary under the `build/` folder, creates tendermint configuration for a single-node validator and runs the node:
-```
-cd $GOPATH/src/github.com/tendermint/tendermint
-
-#Build binary
-make build-linux
-
-#Create configuration
-docker run -e LOG="stdout" -v `pwd`/build:/tendermint tendermint/localnode testnet --o . --v 1
-
-#Run the node
-docker run -v `pwd`/build:/tendermint tendermint/localnode
-```
-
-Logging
--------
-Log is saved under the attached volume, in the `tendermint.log` file. If the `LOG` environment variable is set to `stdout` at start, the log is not saved, but printed on the screen.
-
-Special binaries
-----------------
-If you have multiple binaries with different names, you can specify which one to run with the BINARY environment variable. The path of the binary is relative to the attached volume.
-
-docker-compose.yml
-==================
-This file creates a 4-node network using the localnode image. The nodes of the network are exposed to the host machine on ports 46656-46657, 46659-46660, 46661-46662, 46663-46664 respectively.
-

docker-compose/localnode/wrapper.sh

@@ -1,33 +0,0 @@
-#!/usr/bin/env sh
-
-##
-## Input parameters
-##
-BINARY=/tendermint/${BINARY:-tendermint}
-ID=${ID:-0}
-LOG=${LOG:-tendermint.log}
-
-##
-## Assert linux binary
-##
-if ! [ -f "${BINARY}" ]; then
-	echo "The binary `basename ${BINARY}` cannot be found. Please add the binary to the shared folder. Please use the BINARY environment variable if the name of the binary is not 'tendermint' E.g.: -e BINARY=tendermint_my_test_version"
-	exit 1
-fi
-BINARY_CHECK="`file $BINARY | grep 'ELF 64-bit LSB executable, x86-64'`"
-if [ -z "${BINARY_CHECK}" ]; then
-	echo "Binary needs to be OS linux, ARCH amd64"
-	exit 1
-fi
-
-##
-## Run binary with all parameters
-##
-export TMHOME="/tendermint/node${ID}"
-
-if [ -d "${TMHOME}/${LOG}" ]; then
-  "$BINARY" $@ | tee "${TMHOME}/${LOG}"
-else
-  "$BINARY" $@
-fi
-

docs/abci-cli.rst

@@ -183,6 +183,7 @@ Try running these commands:
     
     > commit
     -> code: OK
+    -> data.hex: 0x0000000000000000
     
     > deliver_tx "abc"
     -> code: OK
@@ -194,7 +195,7 @@ Try running these commands:
     
     > commit
     -> code: OK
-    -> data.hex: 0x49DFD15CCDACDEAE9728CB01FBB5E8688CA58B91
+    -> data.hex: 0x0200000000000000
     
     > query "abc"
     -> code: OK
@@ -208,7 +209,7 @@ Try running these commands:
     
     > commit
     -> code: OK
-    -> data.hex: 0x70102DB32280373FBF3F9F89DA2A20CE2CD62B0B
+    -> data.hex: 0x0400000000000000
     
     > query "def"
     -> code: OK
@@ -301,6 +302,7 @@ In another window, start the ``abci-cli console``:
 
     > set_option serial on
     -> code: OK
+    -> log: OK (SetOption doesn't return anything.)
     
     > check_tx 0x00
     -> code: OK

docs/app-architecture.rst

@@ -1,125 +1,42 @@
 Application Architecture Guide
 ==============================
 
-Overview
---------
+Here we provide a brief guide on the recommended architecture of a Tendermint blockchain
+application.
 
-A blockchain application is more than the consensus engine and the
-transaction logic (eg. smart contracts, business logic) as implemented
-in the ABCI app. There are also (mobile, web, desktop) clients that will
-need to connect and make use of the app. We will assume for now that you
-have a well designed transactions and database model, but maybe this
-will be the topic of another article. This article is more interested in
-various ways of setting up the "plumbing" and connecting these pieces,
-and demonstrating some evolving best practices.
+The following diagram provides a superb example:
 
-Security
---------
+https://drive.google.com/open?id=1yR2XpRi9YCY9H9uMfcw8-RMJpvDyvjz9
 
-A very important aspect when constructing a blockchain is security. The
-consensus model can be DoSed (no consensus possible) by corrupting 1/3
-of the validators and exploited (writing arbitrary blocks) by corrupting
-2/3 of the validators. So, while the security is not that of the
-"weakest link", you should take care that the "average link" is
-sufficiently hardened.
+The end-user application here is the Cosmos Voyager, at the bottom left.
+Voyager communicates with a REST API exposed by a local Light-Client Daemon.
+The Light-Client Daemon is an application specific program that communicates with
+Tendermint nodes and verifies Tendermint light-client proofs through the Tendermint Core RPC.
+The Tendermint Core process communicates with a local ABCI application, where the
+user query or transaction is actually processed.
 
-One big attack surface on the validators is the communication between
-the ABCI app and the tendermint core. This should be highly protected.
-Ideally, the app and the core are running on the same machine, so no
-external agent can target the communication channel. You can use unix
-sockets (with permissions preventing access from other users), or even
-compile the two apps into one binary if the ABCI app is also writen in
-go. If you are unable to do that due to language support, then the ABCI
-app should bind a TCP connection to localhost (127.0.0.1), which is less
-efficient and secure, but still not reachable from outside. If you must
-run the ABCI app and tendermint core on separate machines, make sure you
-have a secure communication channel (ssh tunnel?)
+The ABCI application must be a deterministic result of the Tendermint consensus - any external influence
+on the application state that didn't come through Tendermint could cause a
+consensus failure. Thus *nothing* should communicate with the application except Tendermint via ABCI.
 
-Now assuming, you have linked together your app and the core securely,
-you must also make sure no one can get on the machine it is hosted on.
-At this point it is basic network security. Run on a secure operating
-system (SELinux?). Limit who has access to the machine (user accounts,
-but also where the physical machine is hosted). Turn off all services
-except for ssh, which should only be accessible by some well-guarded
-public/private key pairs (no password). And maybe even firewall off
-access to the ports used by the validators, so only known validators can
-connect.
+If the application is written in Go, it can be compiled into the Tendermint binary.
+Otherwise, it should use a unix socket to communicate with Tendermint.
+If it's necessary to use TCP, extra care must be taken to encrypt and authenticate the connection.
 
-There was also a suggestion on slack from @jhon about compiling
-everything together with a unikernel for more security, such as
-`Mirage <https://mirage.io>`__ or
-`UNIK <https://github.com/emc-advanced-dev/unik>`__.
+All reads from the app happen through the Tendermint `/abci_query` endpoint.
+All writes to the app happen through the Tendermint `/broadcast_tx_*` endpoints.
 
-Connecting your client to the blockchain
-----------------------------------------
+The Light-Client Daemon is what provides light clients (end users) with nearly all the security of a full node.
+It formats and broadcasts transactions, and verifies proofs of queries and transaction results.
+Note that it need not be a daemon - the Light-Client logic could instead be implemented in the same process as the end-user application.
 
-Tendermint Core RPC
-~~~~~~~~~~~~~~~~~~~
+Note for those ABCI applications with weaker security requirements, the functionality of the Light-Client Daemon can be moved
+into the ABCI application process itself. That said, exposing the application process to anything besides Tendermint over ABCI
+requires extreme caution, as all transactions, and possibly all queries, should still pass through Tendermint.
 
-The concept is that the ABCI app is completely hidden from the outside
-world and only communicated through a tested and secured `interface
-exposed by the tendermint core <./specification/rpc.html>`__. This interface
-exposes a lot of data on the block header and consensus process, which
-is quite useful for externally verifying the system. It also includes
-3(!) methods to broadcast a transaction (propose it for the blockchain,
-and possibly await a response). And one method to query app-specific
-data from the ABCI application.
-
-Pros:
-* Server code already written
-* Access to block headers to validate merkle proofs (nice for light clients)
-* Basic read/write functionality is supported
-
-Cons:
-* Limited interface to app. All queries must be serialized into
-[]byte (less expressive than JSON over HTTP) and there is no way to push
-data from ABCI app to the client (eg. notify me if account X receives a
-transaction)
-
-Custom ABCI server
-~~~~~~~~~~~~~~~~~~
-
-This was proposed by @wolfposd on slack and demonstrated by
-`TMChat <https://github.com/wolfposd/TMChat>`__, a sample app. The
-concept is to write a custom server for your app (with typical REST
-API/websockets/etc for easy use by a mobile app). This custom server is
-in the same binary as the ABCI app and data store, so can easily react
-to complex events there that involve understanding the data format (send
-a message if my balance drops below 500). All "writes" sent to this
-server are proxied via websocket/JSON-RPC to tendermint core. When they
-come back as deliver\_tx over ABCI, they will be written to the data
-store. For "reads", we can do any queries we wish that are supported by
-our architecture, using any web technology that is useful. The general
-architecture is shown in the following diagram:
-
-Pros: \* Separates application logic from blockchain logic \* Allows
-much richer, more flexible client-facing API \* Allows pub-sub, watching
-certain fields, etc.
-
-Cons: \* Access to ABCI app can be dangerous (be VERY careful not to
-write unless it comes from the validator node) \* No direct access to
-the blockchain headers to verify tx \* You must write your own API (but
-maybe that's a pro...)
-
-Hybrid solutions
-~~~~~~~~~~~~~~~~
-
-Likely the least secure but most versatile. The client can access both
-the tendermint node for all blockchain info, as well as a custom app
-server, for complex queries and pub-sub on the abci app.
-
-Pros: All from both above solutions
-
-Cons: Even more complexity; even more attack vectors (less
-security)
-
-Scalability
------------
-
-Read replica using non-validating nodes? They could forward transactions
-to the validators (fewer connections, more security), and locally allow
-all queries in any of the above configurations. Thus, while
-transaction-processing speed is limited by the speed of the abci app and
-the number of validators, one should be able to scale our read
-performance to quite an extent (until the replication process drains too
-many resources from the validator nodes).
+See the following for more extensive documentation:
+- [Interchain Standard for the Light-Client REST API](https://github.com/cosmos/cosmos-sdk/pull/1028)
+- [Tendermint RPC Docs](https://tendermint.github.io/slate/)
+- [Tendermint in Production](https://github.com/tendermint/tendermint/pull/1618)
+- [Tendermint Basics](https://tendermint.readthedocs.io/en/master/using-tendermint.html)
+- [ABCI spec](https://github.com/tendermint/abci/blob/master/specification.rst)

docs/app-development.rst

@@ -178,21 +178,22 @@ connection, to query the local state of the app.
 Mempool Connection
 ~~~~~~~~~~~~~~~~~~
 
-The mempool connection is used *only* for CheckTx requests. Transactions
-are run using CheckTx in the same order they were received by the
-validator. If the CheckTx returns ``OK``, the transaction is kept in
-memory and relayed to other peers in the same order it was received.
-Otherwise, it is discarded.
+The mempool connection is used *only* for CheckTx requests.
+Transactions are run using CheckTx in the same order they were
+received by the validator. If the CheckTx returns ``OK``, the
+transaction is kept in memory and relayed to other peers in the same
+order it was received. Otherwise, it is discarded.
 
-CheckTx requests run concurrently with block processing; so they should
-run against a copy of the main application state which is reset after
-every block. This copy is necessary to track transitions made by a
-sequence of CheckTx requests before they are included in a block. When a
-block is committed, the application must ensure to reset the mempool
-state to the latest committed state. Tendermint Core will then filter
-through all transactions in the mempool, removing any that were included
-in the block, and re-run the rest using CheckTx against the post-Commit
-mempool state.
+CheckTx requests run concurrently with block processing; so they
+should run against a copy of the main application state which is reset
+after every block. This copy is necessary to track transitions made by
+a sequence of CheckTx requests before they are included in a block.
+When a block is committed, the application must ensure to reset the
+mempool state to the latest committed state. Tendermint Core will then
+filter through all transactions in the mempool, removing any that were
+included in the block, and re-run the rest using CheckTx against the
+post-Commit mempool state (this behaviour can be turned off with
+``[mempool] recheck = false``).
 
 .. container:: toggle
 
@@ -226,6 +227,23 @@ mempool state.
             }
         }
 
+Replay Protection
+^^^^^^^^^^^^^^^^^
+To prevent old transactions from being replayed, CheckTx must
+implement replay protection.
+
+Tendermint provides the first defence layer by keeping a lightweight
+in-memory cache of 100k (``[mempool] cache_size``) last transactions in
+the mempool. If Tendermint is just started or the clients sent more
+than 100k transactions, old transactions may be sent to the
+application. So it is important CheckTx implements some logic to
+handle them.
+
+There are cases where a transaction will (or may) become valid in some
+future state, in which case you probably want to disable Tendermint's
+cache. You can do that by setting ``[mempool] cache_size = 0`` in the
+config.
+
 Consensus Connection
 ~~~~~~~~~~~~~~~~~~~~
 

docs/conf.py

@@ -71,7 +71,7 @@ language = None
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This patterns also effect to html_static_path and html_extra_path
-exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store', 'architecture', 'specification/new-spec', 'examples']
+exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store', 'architecture', 'spec', 'examples']
 
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
@@ -184,20 +184,10 @@ if os.path.isdir(tools_dir) != True:
 if os.path.isdir(assets_dir) != True:
     os.mkdir(assets_dir)
 
-urllib.urlretrieve(tools_repo+tools_branch+'/ansible/README.rst', filename=tools_dir+'/ansible.rst')
-urllib.urlretrieve(tools_repo+tools_branch+'/ansible/assets/a_plus_t.png', filename=assets_dir+'/a_plus_t.png')
-
 urllib.urlretrieve(tools_repo+tools_branch+'/docker/README.rst', filename=tools_dir+'/docker.rst')
 
-urllib.urlretrieve(tools_repo+tools_branch+'/mintnet-kubernetes/README.rst', filename=tools_dir+'/mintnet-kubernetes.rst')
-urllib.urlretrieve(tools_repo+tools_branch+'/mintnet-kubernetes/assets/gce1.png', filename=assets_dir+'/gce1.png')
-urllib.urlretrieve(tools_repo+tools_branch+'/mintnet-kubernetes/assets/gce2.png', filename=assets_dir+'/gce2.png')
-urllib.urlretrieve(tools_repo+tools_branch+'/mintnet-kubernetes/assets/statefulset.png', filename=assets_dir+'/statefulset.png')
-urllib.urlretrieve(tools_repo+tools_branch+'/mintnet-kubernetes/assets/t_plus_k.png', filename=assets_dir+'/t_plus_k.png')
-
-urllib.urlretrieve(tools_repo+tools_branch+'/terraform-digitalocean/README.rst', filename=tools_dir+'/terraform-digitalocean.rst')
 urllib.urlretrieve(tools_repo+tools_branch+'/tm-bench/README.rst', filename=tools_dir+'/benchmarking.rst')
-urllib.urlretrieve('https://raw.githubusercontent.com/tendermint/tools/master/tm-monitor/README.rst', filename='tools/monitoring.rst')
+urllib.urlretrieve(tools_repo+tools_branch+'/tm-monitor/README.rst', filename='tools/monitoring.rst')
 
 #### abci spec #################################
 

docs/deploy-testnets.rst

@@ -3,8 +3,7 @@ Deploy a Testnet
 
 Now that we've seen how ABCI works, and even played with a few
 applications on a single validator node, it's time to deploy a test
-network to four validator nodes. For this deployment, we'll use the
-``basecoin`` application.
+network to four validator nodes.
 
 Manual Deployments
 ------------------
@@ -24,67 +23,42 @@ Here are the steps to setting up a testnet manually:
    ``tendermint init``
 4) Compile a list of public keys for each validator into a
    ``genesis.json`` file and replace the existing file with it.
-5) Run ``tendermint node --p2p.persistent_peers=< peer addresses >`` on each node,
+5) Run ``tendermint node --proxy_app=kvstore --p2p.persistent_peers=< peer addresses >`` on each node,
    where ``< peer addresses >`` is a comma separated list of the IP:PORT
    combination for each node. The default port for Tendermint is
    ``46656``. Thus, if the IP addresses of your nodes were
    ``192.168.0.1, 192.168.0.2, 192.168.0.3, 192.168.0.4``, the command
    would look like:
-   ``tendermint node --p2p.persistent_peers=96663a3dd0d7b9d17d4c8211b191af259621c693@192.168.0.1:46656, 429fcf25974313b95673f58d77eacdd434402665@192.168.0.2:46656, 0491d373a8e0fcf1023aaf18c51d6a1d0d4f31bd@192.168.0.3:46656, f9baeaa15fedf5e1ef7448dd60f46c01f1a9e9c4@192.168.0.4:46656``.
+
+::
+
+    tendermint node --proxy_app=kvstore --p2p.persistent_peers=96663a3dd0d7b9d17d4c8211b191af259621c693@192.168.0.1:46656, 429fcf25974313b95673f58d77eacdd434402665@192.168.0.2:46656, 0491d373a8e0fcf1023aaf18c51d6a1d0d4f31bd@192.168.0.3:46656, f9baeaa15fedf5e1ef7448dd60f46c01f1a9e9c4@192.168.0.4:46656
 
 After a few seconds, all the nodes should connect to each other and start
 making blocks! For more information, see the Tendermint Networks section
 of `the guide to using Tendermint <using-tendermint.html>`__.
 
+But wait! Steps 3 and 4 are quite manual. Instead, use `this script <https://github.com/tendermint/tendermint/blob/develop/docs/examples/init_testnet.sh>`__, which does the heavy lifting for you. And it gets better.
+
+Instead of the previously linked script to initialize the files required for a testnet, we have the ``tendermint testnet`` command. By default, running ``tendermint testnet`` will create all the required files, just like the script. Of course, you'll still need to manually edit some fields in the ``config.toml``. Alternatively, see the available flags to auto-populate the ``config.toml`` with the fields that would otherwise be passed in via flags when running ``tendermint node``. As you might imagine, this command is useful for manual or automated deployments.
+
 Automated Deployments
 ---------------------
 
-While the manual deployment is easy enough, an automated deployment is
-usually quicker. The below examples show different tools that can be used
-for automated deployments.
+The easiest and fastest way to get a testnet up in less than 5 minutes.
 
-Automated Deployment using Kubernetes
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Local
+^^^^^
 
-The `mintnet-kubernetes tool <https://github.com/tendermint/tools/tree/master/mintnet-kubernetes>`__
-allows automating the deployment of a Tendermint network on an already
-provisioned Kubernetes cluster. For simple provisioning of a Kubernetes
-cluster, check out the `Google Cloud Platform <https://cloud.google.com/>`__.
-
-Automated Deployment using Terraform and Ansible
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-The `terraform-digitalocean tool <https://github.com/tendermint/tools/tree/master/terraform-digitalocean>`__
-allows creating a set of servers on the DigitalOcean cloud.
-
-The `ansible playbooks <https://github.com/tendermint/tools/tree/master/ansible>`__
-allow creating and managing a ``basecoin`` or ``ethermint`` testnet on provisioned servers.
-
-Package Deployment on Linux for developers
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-The ``tendermint`` and ``basecoin`` applications can be installed from RPM or DEB packages on
-Linux machines for development purposes. The packages are configured to be validators on the
-one-node network that the machine represents. The services are not started after installation,
-this way giving an opportunity to reconfigure the applications before starting.
-
-The Ansible playbooks in the previous section use this repository to install ``basecoin``.
-After installation, additional steps are executed to make sure that the multi-node testnet has
-the right configuration before start.
-
-Install from the CentOS/RedHat repository:
+With ``docker`` and ``docker-compose`` installed, run the command:
 
 ::
 
-    rpm --import https://tendermint-packages.interblock.io/centos/7/os/x86_64/RPM-GPG-KEY-Tendermint
-    wget -O /etc/yum.repos.d/tendermint.repo https://tendermint-packages.interblock.io/centos/7/os/x86_64/tendermint.repo
-    yum install basecoin
+    make localnet-start
 
-Install from the Debian/Ubuntu repository:
+from the root of the tendermint repository. This will spin up a 4-node local testnet.
 
-::
-
-    wget -O - https://tendermint-packages.interblock.io/centos/7/os/x86_64/RPM-GPG-KEY-Tendermint | apt-key add -
-    wget -O /etc/apt/sources.list.d/tendermint.list https://tendermint-packages.interblock.io/debian/tendermint.list
-    apt-get update && apt-get install basecoin
+Cloud
+^^^^^
 
+See the `next section <./terraform-and-ansible.html>`__ for details.

docs/examples/getting-started.md

@@ -10,10 +10,10 @@ documentation](http://tendermint.readthedocs.io/en/master/).
 
 ### Quick Install
 
-On a fresh Ubuntu 16.04 machine can be done with [this script](https://git.io/vNLfY), like so:
+On a fresh Ubuntu 16.04 machine can be done with [this script](https://git.io/vpgEI), like so:
 
 ```
-curl -L https://git.io/vxWlX | bash
+curl -L https://git.io/vpgEI | bash
 source ~/.profile
 ```
 
@@ -24,7 +24,7 @@ The script is also used to facilitate cluster deployment below.
 ### Manual Install
 
 Requires:
-- `go` minimum version 1.9
+- `go` minimum version 1.10
 - `$GOPATH` environment variable must be set
 - `$GOPATH/bin` must be on your `$PATH` (see https://github.com/tendermint/tendermint/wiki/Setting-GOPATH)
 
@@ -125,7 +125,7 @@ addresses below as IP1, IP2, IP3, IP4.
 Then, `ssh` into each machine, and execute [this script](https://git.io/vNLfY):
 
 ```
-curl -L https://git.io/vNLfY | bash
+curl -L https://git.io/vpgEI | bash
 source ~/.profile
 ```
 
@@ -134,10 +134,10 @@ This will install `go` and other dependencies, get the Tendermint source code, t
 Next, `cd` into `docs/examples`. Each command below should be run from each node, in sequence:
 
 ```
-tendermint node --home ./node1 --proxy_app=kvstore --p2p.persistent_peers="3a558bd6f8c97453aa6c2372bb800e8b6ed8e6db@IP1:46656,ccf30d873fddda10a495f42687c8f33472a6569f@IP2:46656,9a4c3de5d6788a76c6ee3cd9ff41e3b45b4cfd14@IP3:46656,58e6f2ab297b3ceae107ba4c8c2898da5c009ff4@IP4:46656"
-tendermint node --home ./node2 --proxy_app=kvstore --p2p.persistent_peers="3a558bd6f8c97453aa6c2372bb800e8b6ed8e6db@IP1:46656,ccf30d873fddda10a495f42687c8f33472a6569f@IP2:46656,9a4c3de5d6788a76c6ee3cd9ff41e3b45b4cfd14@IP3:46656,58e6f2ab297b3ceae107ba4c8c2898da5c009ff4@IP4:46656"
-tendermint node --home ./node3 --proxy_app=kvstore --p2p.persistent_peers="3a558bd6f8c97453aa6c2372bb800e8b6ed8e6db@IP1:46656,ccf30d873fddda10a495f42687c8f33472a6569f@IP2:46656,9a4c3de5d6788a76c6ee3cd9ff41e3b45b4cfd14@IP3:46656,58e6f2ab297b3ceae107ba4c8c2898da5c009ff4@IP4:46656"
-tendermint node --home ./node4 --proxy_app=kvstore --p2p.persistent_peers="3a558bd6f8c97453aa6c2372bb800e8b6ed8e6db@IP1:46656,ccf30d873fddda10a495f42687c8f33472a6569f@IP2:46656,9a4c3de5d6788a76c6ee3cd9ff41e3b45b4cfd14@IP3:46656,58e6f2ab297b3ceae107ba4c8c2898da5c009ff4@IP4:46656"
+tendermint node --home ./node0 --proxy_app=kvstore --p2p.persistent_peers="167b80242c300bf0ccfb3ced3dec60dc2a81776e@IP1:46656,3c7a5920811550c04bf7a0b2f1e02ab52317b5e6@IP2:46656,303a1a4312c30525c99ba66522dd81cca56a361a@IP3:46656,b686c2a7f4b1b46dca96af3a0f31a6a7beae0be4@IP4:46656"
+tendermint node --home ./node1 --proxy_app=kvstore --p2p.persistent_peers="167b80242c300bf0ccfb3ced3dec60dc2a81776e@IP1:46656,3c7a5920811550c04bf7a0b2f1e02ab52317b5e6@IP2:46656,303a1a4312c30525c99ba66522dd81cca56a361a@IP3:46656,b686c2a7f4b1b46dca96af3a0f31a6a7beae0be4@IP4:46656"
+tendermint node --home ./node2 --proxy_app=kvstore --p2p.persistent_peers="167b80242c300bf0ccfb3ced3dec60dc2a81776e@IP1:46656,3c7a5920811550c04bf7a0b2f1e02ab52317b5e6@IP2:46656,303a1a4312c30525c99ba66522dd81cca56a361a@IP3:46656,b686c2a7f4b1b46dca96af3a0f31a6a7beae0be4@IP4:46656"
+tendermint node --home ./node3 --proxy_app=kvstore --p2p.persistent_peers="167b80242c300bf0ccfb3ced3dec60dc2a81776e@IP1:46656,3c7a5920811550c04bf7a0b2f1e02ab52317b5e6@IP2:46656,303a1a4312c30525c99ba66522dd81cca56a361a@IP3:46656,b686c2a7f4b1b46dca96af3a0f31a6a7beae0be4@IP4:46656"
 ```
 
 Note that after the third node is started, blocks will start to stream in

docs/examples/init_testnet.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+
+# make all the files
+tendermint init --home ./tester/node0
+tendermint init --home ./tester/node1
+tendermint init --home ./tester/node2
+tendermint init --home ./tester/node3
+
+file0=./tester/node0/config/genesis.json
+file1=./tester/node1/config/genesis.json
+file2=./tester/node2/config/genesis.json
+file3=./tester/node3/config/genesis.json
+
+genesis_time=`cat $file0 | jq '.genesis_time'`
+chain_id=`cat $file0 | jq '.chain_id'`
+
+value0=`cat $file0 | jq '.validators[0].pub_key.value'`
+value1=`cat $file1 | jq '.validators[0].pub_key.value'`
+value2=`cat $file2 | jq '.validators[0].pub_key.value'`
+value3=`cat $file3 | jq '.validators[0].pub_key.value'`
+
+rm $file0
+rm $file1
+rm $file2
+rm $file3
+
+echo "{
+  \"genesis_time\": $genesis_time,
+  \"chain_id\": $chain_id,
+  \"validators\": [
+    {
+     \"pub_key\": {
+       \"type\": \"AC26791624DE60\",
+       \"value\": $value0
+     },
+      \"power:\": 10,
+      \"name\":, \"\"
+    },
+    {
+     \"pub_key\": {
+       \"type\": \"AC26791624DE60\",
+       \"value\": $value1
+     },
+      \"power:\": 10,
+      \"name\":, \"\"
+    },
+    {
+     \"pub_key\": {
+       \"type\": \"AC26791624DE60\",
+       \"value\": $value2
+     },
+      \"power:\": 10,
+      \"name\":, \"\"
+    },
+    {
+     \"pub_key\": {
+       \"type\": \"AC26791624DE60\",
+       \"value\": $value3
+     },
+      \"power:\": 10,
+      \"name\":, \"\"
+    }
+   ],
+   \"app_hash\": \"\"
+}" >> $file0
+
+cp $file0 $file1
+cp $file0 $file2
+cp $file2 $file3

docs/examples/install_tendermint.sh

@@ -26,7 +26,7 @@ go get $REPO
 cd $GOPATH/src/$REPO
 
 ## build
-git checkout v0.18.0
+git checkout master
 make get_tools
 make get_vendor_deps
 make install

docs/examples/node0/config/config.toml

@@ -0,0 +1,166 @@
+# This is a TOML config file.
+# For more information, see https://github.com/toml-lang/toml
+
+##### main base config options #####
+
+# TCP or UNIX socket address of the ABCI application,
+# or the name of an ABCI application compiled in with the Tendermint binary
+proxy_app = "tcp://127.0.0.1:46658"
+
+# A custom human readable name for this node
+moniker = "alpha"
+
+# If this node is many blocks behind the tip of the chain, FastSync
+# allows them to catchup quickly by downloading blocks in parallel
+# and verifying their commits
+fast_sync = true
+
+# Database backend: leveldb | memdb
+db_backend = "leveldb"
+
+# Database directory
+db_path = "data"
+
+# Output level for logging, including package level options
+log_level = "main:info,state:info,*:error"
+
+##### additional base config options #####
+
+# Path to the JSON file containing the initial validator set and other meta data
+genesis_file = "config/genesis.json"
+
+# Path to the JSON file containing the private key to use as a validator in the consensus protocol
+priv_validator_file = "config/priv_validator.json"
+
+# Path to the JSON file containing the private key to use for node authentication in the p2p protocol
+node_key_file = "config/node_key.json"
+
+# Mechanism to connect to the ABCI application: socket | grpc
+abci = "socket"
+
+# TCP or UNIX socket address for the profiling server to listen on
+prof_laddr = ""
+
+# If true, query the ABCI app on connecting to a new peer
+# so the app can decide if we should keep the connection or not
+filter_peers = false
+
+##### advanced configuration options #####
+
+##### rpc server configuration options #####
+[rpc]
+
+# TCP or UNIX socket address for the RPC server to listen on
+laddr = "tcp://0.0.0.0:46657"
+
+# TCP or UNIX socket address for the gRPC server to listen on
+# NOTE: This server only supports /broadcast_tx_commit
+grpc_laddr = ""
+
+# Activate unsafe RPC commands like /dial_seeds and /unsafe_flush_mempool
+unsafe = false
+
+##### peer to peer configuration options #####
+[p2p]
+
+# Address to listen for incoming connections
+laddr = "tcp://0.0.0.0:46656"
+
+# Comma separated list of seed nodes to connect to
+seeds = ""
+
+# Comma separated list of nodes to keep persistent connections to
+# Do not add private peers to this list if you don't want them advertised
+persistent_peers = ""
+
+# Path to address book
+addr_book_file = "config/addrbook.json"
+
+# Set true for strict address routability rules
+addr_book_strict = true
+
+# Time to wait before flushing messages out on the connection, in ms
+flush_throttle_timeout = 100
+
+# Maximum number of peers to connect to
+max_num_peers = 50
+
+# Maximum size of a message packet payload, in bytes
+max_packet_msg_payload_size = 1024
+
+# Rate at which packets can be sent, in bytes/second
+send_rate = 512000
+
+# Rate at which packets can be received, in bytes/second
+recv_rate = 512000
+
+# Set true to enable the peer-exchange reactor
+pex = true
+
+# Seed mode, in which node constantly crawls the network and looks for
+# peers. If another node asks it for addresses, it responds and disconnects.
+#
+# Does not work if the peer-exchange reactor is disabled.
+seed_mode = false
+
+# Comma separated list of peer IDs to keep private (will not be gossiped to other peers)
+private_peer_ids = ""
+
+##### mempool configuration options #####
+[mempool]
+
+recheck = true
+recheck_empty = true
+broadcast = true
+wal_dir = "data/mempool.wal"
+
+##### consensus configuration options #####
+[consensus]
+
+wal_file = "data/cs.wal/wal"
+
+# All timeouts are in milliseconds
+timeout_propose = 3000
+timeout_propose_delta = 500
+timeout_prevote = 1000
+timeout_prevote_delta = 500
+timeout_precommit = 1000
+timeout_precommit_delta = 500
+timeout_commit = 1000
+
+# Make progress as soon as we have all the precommits (as if TimeoutCommit = 0)
+skip_timeout_commit = false
+
+# BlockSize
+max_block_size_txs = 10000
+max_block_size_bytes = 1
+
+# EmptyBlocks mode and possible interval between empty blocks in seconds
+create_empty_blocks = true
+create_empty_blocks_interval = 0
+
+# Reactor sleep duration parameters are in milliseconds
+peer_gossip_sleep_duration = 100
+peer_query_maj23_sleep_duration = 2000
+
+##### transactions indexer configuration options #####
+[tx_index]
+
+# What indexer to use for transactions
+#
+# Options:
+#   1) "null" (default)
+#   2) "kv" - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend).
+indexer = "kv"
+
+# Comma-separated list of tags to index (by default the only tag is tx hash)
+#
+# It's recommended to index only a subset of tags due to possible memory
+# bloat. This is, of course, depends on the indexer's DB and the volume of
+# transactions.
+index_tags = ""
+
+# When set to true, tells indexer to index all tags. Note this may be not
+# desirable (see the comment above). IndexTags has a precedence over
+# IndexAllTags (i.e. when given both, IndexTags will be indexed).
+index_all_tags = false

docs/examples/node0/config/genesis.json

@@ -0,0 +1,39 @@
+{
+  "genesis_time": "0001-01-01T00:00:00Z",
+  "chain_id": "test-chain-A2i3OZ",
+  "validators": [
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "D+k4AdjnYPWbB9wmad137Bdpo/kAulOoTRQrLy/Qc4k="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "b56N5GCR1adcVRuENjfKw/mrm2dkhT7wNZXV/SDsKsU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "IgZDpJvGA0TAamicA8ircy+RX/BkUlj6DXwM791ywIU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "KGAZfxZvIZ7abbeIQ85U1ECG6+I62KSdaH8ulc0+OiU="
+      },
+      "power": 10,
+      "name": ""
+    }
+  ],
+  "app_hash": ""
+}

docs/examples/node0/config/node_key.json

@@ -0,0 +1 @@
+{"priv_key":{"type":"954568A3288910","value":"7lY+k6EDllG8Q9gVbF5313t/ag2YGkBVKdVa0YHJ9xO5k0w3Q/hke0Z7UFT1KgVDGRUEKzwAwwjwFQUvgF0ZWg=="}}

docs/examples/node0/config/priv_validator.json

@@ -0,0 +1,14 @@
+{
+  "address": "122A9414774A2FCAD026201DA477EF3F41970EF0",
+  "pub_key": {
+    "type": "AC26791624DE60",
+    "value": "D+k4AdjnYPWbB9wmad137Bdpo/kAulOoTRQrLy/Qc4k="
+  },
+  "last_height": 0,
+  "last_round": 0,
+  "last_step": 0,
+  "priv_key": {
+    "type": "954568A3288910",
+    "value": "YLxp3ho+kySgAnzjBptbxDzSGw2ntGZLsIHQsaVxY/cP6TgB2Odg9ZsH3CZp3XfsF2mj+QC6U6hNFCsvL9BziQ=="
+  }
+}

docs/examples/node1/config.toml

@@ -1,15 +0,0 @@
-# This is a TOML config file.
-# For more information, see https://github.com/toml-lang/toml
-
-proxy_app = "tcp://127.0.0.1:46658"
-moniker = "penguin"
-fast_sync = true
-db_backend = "leveldb"
-log_level = "state:info,*:error"
-
-[rpc]
-laddr = "tcp://0.0.0.0:46657"
-
-[p2p]
-laddr = "tcp://0.0.0.0:46656"
-seeds = ""

docs/examples/node1/config/config.toml

@@ -0,0 +1,166 @@
+# This is a TOML config file.
+# For more information, see https://github.com/toml-lang/toml
+
+##### main base config options #####
+
+# TCP or UNIX socket address of the ABCI application,
+# or the name of an ABCI application compiled in with the Tendermint binary
+proxy_app = "tcp://127.0.0.1:46658"
+
+# A custom human readable name for this node
+moniker = "bravo"
+
+# If this node is many blocks behind the tip of the chain, FastSync
+# allows them to catchup quickly by downloading blocks in parallel
+# and verifying their commits
+fast_sync = true
+
+# Database backend: leveldb | memdb
+db_backend = "leveldb"
+
+# Database directory
+db_path = "data"
+
+# Output level for logging, including package level options
+log_level = "main:info,state:info,*:error"
+
+##### additional base config options #####
+
+# Path to the JSON file containing the initial validator set and other meta data
+genesis_file = "config/genesis.json"
+
+# Path to the JSON file containing the private key to use as a validator in the consensus protocol
+priv_validator_file = "config/priv_validator.json"
+
+# Path to the JSON file containing the private key to use for node authentication in the p2p protocol
+node_key_file = "config/node_key.json"
+
+# Mechanism to connect to the ABCI application: socket | grpc
+abci = "socket"
+
+# TCP or UNIX socket address for the profiling server to listen on
+prof_laddr = ""
+
+# If true, query the ABCI app on connecting to a new peer
+# so the app can decide if we should keep the connection or not
+filter_peers = false
+
+##### advanced configuration options #####
+
+##### rpc server configuration options #####
+[rpc]
+
+# TCP or UNIX socket address for the RPC server to listen on
+laddr = "tcp://0.0.0.0:46657"
+
+# TCP or UNIX socket address for the gRPC server to listen on
+# NOTE: This server only supports /broadcast_tx_commit
+grpc_laddr = ""
+
+# Activate unsafe RPC commands like /dial_seeds and /unsafe_flush_mempool
+unsafe = false
+
+##### peer to peer configuration options #####
+[p2p]
+
+# Address to listen for incoming connections
+laddr = "tcp://0.0.0.0:46656"
+
+# Comma separated list of seed nodes to connect to
+seeds = ""
+
+# Comma separated list of nodes to keep persistent connections to
+# Do not add private peers to this list if you don't want them advertised
+persistent_peers = ""
+
+# Path to address book
+addr_book_file = "config/addrbook.json"
+
+# Set true for strict address routability rules
+addr_book_strict = true
+
+# Time to wait before flushing messages out on the connection, in ms
+flush_throttle_timeout = 100
+
+# Maximum number of peers to connect to
+max_num_peers = 50
+
+# Maximum size of a message packet payload, in bytes
+max_packet_msg_payload_size = 1024
+
+# Rate at which packets can be sent, in bytes/second
+send_rate = 512000
+
+# Rate at which packets can be received, in bytes/second
+recv_rate = 512000
+
+# Set true to enable the peer-exchange reactor
+pex = true
+
+# Seed mode, in which node constantly crawls the network and looks for
+# peers. If another node asks it for addresses, it responds and disconnects.
+#
+# Does not work if the peer-exchange reactor is disabled.
+seed_mode = false
+
+# Comma separated list of peer IDs to keep private (will not be gossiped to other peers)
+private_peer_ids = ""
+
+##### mempool configuration options #####
+[mempool]
+
+recheck = true
+recheck_empty = true
+broadcast = true
+wal_dir = "data/mempool.wal"
+
+##### consensus configuration options #####
+[consensus]
+
+wal_file = "data/cs.wal/wal"
+
+# All timeouts are in milliseconds
+timeout_propose = 3000
+timeout_propose_delta = 500
+timeout_prevote = 1000
+timeout_prevote_delta = 500
+timeout_precommit = 1000
+timeout_precommit_delta = 500
+timeout_commit = 1000
+
+# Make progress as soon as we have all the precommits (as if TimeoutCommit = 0)
+skip_timeout_commit = false
+
+# BlockSize
+max_block_size_txs = 10000
+max_block_size_bytes = 1
+
+# EmptyBlocks mode and possible interval between empty blocks in seconds
+create_empty_blocks = true
+create_empty_blocks_interval = 0
+
+# Reactor sleep duration parameters are in milliseconds
+peer_gossip_sleep_duration = 100
+peer_query_maj23_sleep_duration = 2000
+
+##### transactions indexer configuration options #####
+[tx_index]
+
+# What indexer to use for transactions
+#
+# Options:
+#   1) "null" (default)
+#   2) "kv" - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend).
+indexer = "kv"
+
+# Comma-separated list of tags to index (by default the only tag is tx hash)
+#
+# It's recommended to index only a subset of tags due to possible memory
+# bloat. This is, of course, depends on the indexer's DB and the volume of
+# transactions.
+index_tags = ""
+
+# When set to true, tells indexer to index all tags. Note this may be not
+# desirable (see the comment above). IndexTags has a precedence over
+# IndexAllTags (i.e. when given both, IndexTags will be indexed).
+index_all_tags = false

docs/examples/node1/config/genesis.json

@@ -0,0 +1,39 @@
+{
+  "genesis_time": "0001-01-01T00:00:00Z",
+  "chain_id": "test-chain-A2i3OZ",
+  "validators": [
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "D+k4AdjnYPWbB9wmad137Bdpo/kAulOoTRQrLy/Qc4k="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "b56N5GCR1adcVRuENjfKw/mrm2dkhT7wNZXV/SDsKsU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "IgZDpJvGA0TAamicA8ircy+RX/BkUlj6DXwM791ywIU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "KGAZfxZvIZ7abbeIQ85U1ECG6+I62KSdaH8ulc0+OiU="
+      },
+      "power": 10,
+      "name": ""
+    }
+  ],
+  "app_hash": ""
+}

docs/examples/node1/config/node_key.json

@@ -0,0 +1 @@
+{"priv_key":{"type":"954568A3288910","value":"H71dc/TIG7nTselfa9nG0WRArXLKYnm7P5eFCk2lk8ASKQ3sIHpbdxCSHQD/RcdHe7TiabJeuOssNPvPWiyQEQ=="}}

docs/examples/node1/config/priv_validator.json

@@ -0,0 +1,14 @@
+{
+  "address": "BEA1B57F5806CF9AC4D54C8CF806DED5C0F102E1",
+  "pub_key": {
+    "type": "AC26791624DE60",
+    "value": "b56N5GCR1adcVRuENjfKw/mrm2dkhT7wNZXV/SDsKsU="
+  },
+  "last_height": 0,
+  "last_round": 0,
+  "last_step": 0,
+  "priv_key": {
+    "type": "954568A3288910",
+    "value": "o0IqrHSPtd5YqGefodWxpJuRzvuVBjgbH785vbMgk7Vvno3kYJHVp1xVG4Q2N8rD+aubZ2SFPvA1ldX9IOwqxQ=="
+  }
+}

docs/examples/node1/genesis.json

@@ -1,42 +0,0 @@
-{
-	"genesis_time":"0001-01-01T00:00:00Z",
-	"chain_id":"test-chain-wt7apy",
-	"validators":[
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data":"F08446C80A33E10D620E21450821B58D053778528F2B583D423B3E46EC647D30"
-			},
-			"power":10,
-			"name":"node1"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "A8423F70A9E512643B4B00F7C3701ECAD1F31B0A1FAA45852C41046353B9A07F"
-			},
-			"power":10,
-			"name":"node2"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "E52EFFAEDFE1D618ECDA71DE3B23592B3612CAABA0C10826E4C3120B2198C29A"
-			},
-			"power":10,
-			"name":"node3"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "2B8FC09C07955A02998DFE5AF1AAD1C44115ECA7635FF51A867CF4265D347C07"
-			},
-			"power":10,
-			"name":"node4"
-		}
-	],
-	"app_hash":""
-}

docs/examples/node1/node_key.json

@@ -1,6 +0,0 @@
-{
-   "priv_key" : {
-      "data" : "DA9BAABEA7211A6D93D9A1986B4279EAB3021FAA1653D459D53E6AB4D1CFB4C69BF7D52E48CF00AC5779AA0A6D3C368955D5636A677F72370B8ED19989714CFC",
-      "type" : "ed25519"
-   }
-}

docs/examples/node1/priv_validator.json

@@ -1,15 +0,0 @@
-{
-	"address":"4DC2756029CE0D8F8C6C3E4C3CE6EE8C30AF352F",
-	"pub_key":{
-		"type":"ed25519",
-		"data":"F08446C80A33E10D620E21450821B58D053778528F2B583D423B3E46EC647D30"
-	},
-	"last_height":0,
-	"last_round":0,
-	"last_step":0,
-	"last_signature":null,
-	"priv_key":{
-		"type":"ed25519",
-		"data":"4D3648E1D93C8703E436BFF814728B6BD270CFDFD686DF5385E8ACBEB7BE2D7DF08446C80A33E10D620E21450821B58D053778528F2B583D423B3E46EC647D30"
-	}
-}

docs/examples/node2/config.toml

@@ -1,15 +0,0 @@
-# This is a TOML config file.
-# For more information, see https://github.com/toml-lang/toml
-
-proxy_app = "tcp://127.0.0.1:46658"
-moniker = "penguin"
-fast_sync = true
-db_backend = "leveldb"
-log_level = "state:info,*:error"
-
-[rpc]
-laddr = "tcp://0.0.0.0:46657"
-
-[p2p]
-laddr = "tcp://0.0.0.0:46656"
-seeds = ""

docs/examples/node2/config/config.toml

@@ -0,0 +1,166 @@
+# This is a TOML config file.
+# For more information, see https://github.com/toml-lang/toml
+
+##### main base config options #####
+
+# TCP or UNIX socket address of the ABCI application,
+# or the name of an ABCI application compiled in with the Tendermint binary
+proxy_app = "tcp://127.0.0.1:46658"
+
+# A custom human readable name for this node
+moniker = "charlie"
+
+# If this node is many blocks behind the tip of the chain, FastSync
+# allows them to catchup quickly by downloading blocks in parallel
+# and verifying their commits
+fast_sync = true
+
+# Database backend: leveldb | memdb
+db_backend = "leveldb"
+
+# Database directory
+db_path = "data"
+
+# Output level for logging, including package level options
+log_level = "main:info,state:info,*:error"
+
+##### additional base config options #####
+
+# Path to the JSON file containing the initial validator set and other meta data
+genesis_file = "config/genesis.json"
+
+# Path to the JSON file containing the private key to use as a validator in the consensus protocol
+priv_validator_file = "config/priv_validator.json"
+
+# Path to the JSON file containing the private key to use for node authentication in the p2p protocol
+node_key_file = "config/node_key.json"
+
+# Mechanism to connect to the ABCI application: socket | grpc
+abci = "socket"
+
+# TCP or UNIX socket address for the profiling server to listen on
+prof_laddr = ""
+
+# If true, query the ABCI app on connecting to a new peer
+# so the app can decide if we should keep the connection or not
+filter_peers = false
+
+##### advanced configuration options #####
+
+##### rpc server configuration options #####
+[rpc]
+
+# TCP or UNIX socket address for the RPC server to listen on
+laddr = "tcp://0.0.0.0:46657"
+
+# TCP or UNIX socket address for the gRPC server to listen on
+# NOTE: This server only supports /broadcast_tx_commit
+grpc_laddr = ""
+
+# Activate unsafe RPC commands like /dial_seeds and /unsafe_flush_mempool
+unsafe = false
+
+##### peer to peer configuration options #####
+[p2p]
+
+# Address to listen for incoming connections
+laddr = "tcp://0.0.0.0:46656"
+
+# Comma separated list of seed nodes to connect to
+seeds = ""
+
+# Comma separated list of nodes to keep persistent connections to
+# Do not add private peers to this list if you don't want them advertised
+persistent_peers = ""
+
+# Path to address book
+addr_book_file = "config/addrbook.json"
+
+# Set true for strict address routability rules
+addr_book_strict = true
+
+# Time to wait before flushing messages out on the connection, in ms
+flush_throttle_timeout = 100
+
+# Maximum number of peers to connect to
+max_num_peers = 50
+
+# Maximum size of a message packet payload, in bytes
+max_packet_msg_payload_size = 1024
+
+# Rate at which packets can be sent, in bytes/second
+send_rate = 512000
+
+# Rate at which packets can be received, in bytes/second
+recv_rate = 512000
+
+# Set true to enable the peer-exchange reactor
+pex = true
+
+# Seed mode, in which node constantly crawls the network and looks for
+# peers. If another node asks it for addresses, it responds and disconnects.
+#
+# Does not work if the peer-exchange reactor is disabled.
+seed_mode = false
+
+# Comma separated list of peer IDs to keep private (will not be gossiped to other peers)
+private_peer_ids = ""
+
+##### mempool configuration options #####
+[mempool]
+
+recheck = true
+recheck_empty = true
+broadcast = true
+wal_dir = "data/mempool.wal"
+
+##### consensus configuration options #####
+[consensus]
+
+wal_file = "data/cs.wal/wal"
+
+# All timeouts are in milliseconds
+timeout_propose = 3000
+timeout_propose_delta = 500
+timeout_prevote = 1000
+timeout_prevote_delta = 500
+timeout_precommit = 1000
+timeout_precommit_delta = 500
+timeout_commit = 1000
+
+# Make progress as soon as we have all the precommits (as if TimeoutCommit = 0)
+skip_timeout_commit = false
+
+# BlockSize
+max_block_size_txs = 10000
+max_block_size_bytes = 1
+
+# EmptyBlocks mode and possible interval between empty blocks in seconds
+create_empty_blocks = true
+create_empty_blocks_interval = 0
+
+# Reactor sleep duration parameters are in milliseconds
+peer_gossip_sleep_duration = 100
+peer_query_maj23_sleep_duration = 2000
+
+##### transactions indexer configuration options #####
+[tx_index]
+
+# What indexer to use for transactions
+#
+# Options:
+#   1) "null" (default)
+#   2) "kv" - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend).
+indexer = "kv"
+
+# Comma-separated list of tags to index (by default the only tag is tx hash)
+#
+# It's recommended to index only a subset of tags due to possible memory
+# bloat. This is, of course, depends on the indexer's DB and the volume of
+# transactions.
+index_tags = ""
+
+# When set to true, tells indexer to index all tags. Note this may be not
+# desirable (see the comment above). IndexTags has a precedence over
+# IndexAllTags (i.e. when given both, IndexTags will be indexed).
+index_all_tags = false

docs/examples/node2/config/genesis.json

@@ -0,0 +1,39 @@
+{
+  "genesis_time": "0001-01-01T00:00:00Z",
+  "chain_id": "test-chain-A2i3OZ",
+  "validators": [
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "D+k4AdjnYPWbB9wmad137Bdpo/kAulOoTRQrLy/Qc4k="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "b56N5GCR1adcVRuENjfKw/mrm2dkhT7wNZXV/SDsKsU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "IgZDpJvGA0TAamicA8ircy+RX/BkUlj6DXwM791ywIU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "KGAZfxZvIZ7abbeIQ85U1ECG6+I62KSdaH8ulc0+OiU="
+      },
+      "power": 10,
+      "name": ""
+    }
+  ],
+  "app_hash": ""
+}

docs/examples/node2/config/node_key.json

@@ -0,0 +1 @@
+{"priv_key":{"type":"954568A3288910","value":"COHZ/Y2cWGWxJNkRwtpQBt5sYvOnb6Gpz0lO46XERRJFBIdSWD5x1UMGRSTmnvW1ec5G4bMdg6zUZKOZD+vVPg=="}}

docs/examples/node2/config/priv_validator.json

@@ -0,0 +1,14 @@
+{
+  "address": "F0AA266949FB29ADA0B679C27889ED930BD1BDA1",
+  "pub_key": {
+    "type": "AC26791624DE60",
+    "value": "IgZDpJvGA0TAamicA8ircy+RX/BkUlj6DXwM791ywIU="
+  },
+  "last_height": 0,
+  "last_round": 0,
+  "last_step": 0,
+  "priv_key": {
+    "type": "954568A3288910",
+    "value": "khADeZ5K/8u/L99DFaZNRq8V5g+EHWbwfqFjhCrppaAiBkOkm8YDRMBqaJwDyKtzL5Ff8GRSWPoNfAzv3XLAhQ=="
+  }
+}

docs/examples/node2/genesis.json

@@ -1,42 +0,0 @@
-{
-	"genesis_time":"0001-01-01T00:00:00Z",
-	"chain_id":"test-chain-wt7apy",
-	"validators":[
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data":"F08446C80A33E10D620E21450821B58D053778528F2B583D423B3E46EC647D30"
-			},
-			"power":10,
-			"name":"node1"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "A8423F70A9E512643B4B00F7C3701ECAD1F31B0A1FAA45852C41046353B9A07F"
-			},
-			"power":10,
-			"name":"node2"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "E52EFFAEDFE1D618ECDA71DE3B23592B3612CAABA0C10826E4C3120B2198C29A"
-			},
-			"power":10,
-			"name":"node3"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "2B8FC09C07955A02998DFE5AF1AAD1C44115ECA7635FF51A867CF4265D347C07"
-			},
-			"power":10,
-			"name":"node4"
-		}
-	],
-	"app_hash":""
-}

docs/examples/node2/node_key.json

@@ -1,6 +0,0 @@
-{
-   "priv_key" : {
-      "data" : "F7BCABA165DFC0DDD50AE563EFB285BAA236EA805D35612504238A36EFA105958756442B1D9F942D7ABD259F2D59671657B6378E9C7194342A7AAA47A66D1E95",
-      "type" : "ed25519"
-   }
-}

docs/examples/node2/priv_validator.json

@@ -1,15 +0,0 @@
-{
-	"address": "DD6C63A762608A9DDD4A845657743777F63121D6",
-	"pub_key": {
-		"type": "ed25519",
-		"data": "A8423F70A9E512643B4B00F7C3701ECAD1F31B0A1FAA45852C41046353B9A07F"
-	},
-	"last_height": 0,
-	"last_round": 0,
-	"last_step": 0,
-	"last_signature": null,
-	"priv_key": {
-		"type": "ed25519",
-		"data": "7B0DE666FF5E9B437D284BCE767F612381890C018B93B0A105D2E829A568DA6FA8423F70A9E512643B4B00F7C3701ECAD1F31B0A1FAA45852C41046353B9A07F"
-	}
-}

docs/examples/node3/config.toml

@@ -1,15 +0,0 @@
-# This is a TOML config file.
-# For more information, see https://github.com/toml-lang/toml
-
-proxy_app = "tcp://127.0.0.1:46658"
-moniker = "penguin"
-fast_sync = true
-db_backend = "leveldb"
-log_level = "state:info,*:error"
-
-[rpc]
-laddr = "tcp://0.0.0.0:46657"
-
-[p2p]
-laddr = "tcp://0.0.0.0:46656"
-seeds = ""

docs/examples/node3/config/config.toml

@@ -0,0 +1,166 @@
+# This is a TOML config file.
+# For more information, see https://github.com/toml-lang/toml
+
+##### main base config options #####
+
+# TCP or UNIX socket address of the ABCI application,
+# or the name of an ABCI application compiled in with the Tendermint binary
+proxy_app = "tcp://127.0.0.1:46658"
+
+# A custom human readable name for this node
+moniker = "delta"
+
+# If this node is many blocks behind the tip of the chain, FastSync
+# allows them to catchup quickly by downloading blocks in parallel
+# and verifying their commits
+fast_sync = true
+
+# Database backend: leveldb | memdb
+db_backend = "leveldb"
+
+# Database directory
+db_path = "data"
+
+# Output level for logging, including package level options
+log_level = "main:info,state:info,*:error"
+
+##### additional base config options #####
+
+# Path to the JSON file containing the initial validator set and other meta data
+genesis_file = "config/genesis.json"
+
+# Path to the JSON file containing the private key to use as a validator in the consensus protocol
+priv_validator_file = "config/priv_validator.json"
+
+# Path to the JSON file containing the private key to use for node authentication in the p2p protocol
+node_key_file = "config/node_key.json"
+
+# Mechanism to connect to the ABCI application: socket | grpc
+abci = "socket"
+
+# TCP or UNIX socket address for the profiling server to listen on
+prof_laddr = ""
+
+# If true, query the ABCI app on connecting to a new peer
+# so the app can decide if we should keep the connection or not
+filter_peers = false
+
+##### advanced configuration options #####
+
+##### rpc server configuration options #####
+[rpc]
+
+# TCP or UNIX socket address for the RPC server to listen on
+laddr = "tcp://0.0.0.0:46657"
+
+# TCP or UNIX socket address for the gRPC server to listen on
+# NOTE: This server only supports /broadcast_tx_commit
+grpc_laddr = ""
+
+# Activate unsafe RPC commands like /dial_seeds and /unsafe_flush_mempool
+unsafe = false
+
+##### peer to peer configuration options #####
+[p2p]
+
+# Address to listen for incoming connections
+laddr = "tcp://0.0.0.0:46656"
+
+# Comma separated list of seed nodes to connect to
+seeds = ""
+
+# Comma separated list of nodes to keep persistent connections to
+# Do not add private peers to this list if you don't want them advertised
+persistent_peers = ""
+
+# Path to address book
+addr_book_file = "config/addrbook.json"
+
+# Set true for strict address routability rules
+addr_book_strict = true
+
+# Time to wait before flushing messages out on the connection, in ms
+flush_throttle_timeout = 100
+
+# Maximum number of peers to connect to
+max_num_peers = 50
+
+# Maximum size of a message packet payload, in bytes
+max_packet_msg_payload_size = 1024
+
+# Rate at which packets can be sent, in bytes/second
+send_rate = 512000
+
+# Rate at which packets can be received, in bytes/second
+recv_rate = 512000
+
+# Set true to enable the peer-exchange reactor
+pex = true
+
+# Seed mode, in which node constantly crawls the network and looks for
+# peers. If another node asks it for addresses, it responds and disconnects.
+#
+# Does not work if the peer-exchange reactor is disabled.
+seed_mode = false
+
+# Comma separated list of peer IDs to keep private (will not be gossiped to other peers)
+private_peer_ids = ""
+
+##### mempool configuration options #####
+[mempool]
+
+recheck = true
+recheck_empty = true
+broadcast = true
+wal_dir = "data/mempool.wal"
+
+##### consensus configuration options #####
+[consensus]
+
+wal_file = "data/cs.wal/wal"
+
+# All timeouts are in milliseconds
+timeout_propose = 3000
+timeout_propose_delta = 500
+timeout_prevote = 1000
+timeout_prevote_delta = 500
+timeout_precommit = 1000
+timeout_precommit_delta = 500
+timeout_commit = 1000
+
+# Make progress as soon as we have all the precommits (as if TimeoutCommit = 0)
+skip_timeout_commit = false
+
+# BlockSize
+max_block_size_txs = 10000
+max_block_size_bytes = 1
+
+# EmptyBlocks mode and possible interval between empty blocks in seconds
+create_empty_blocks = true
+create_empty_blocks_interval = 0
+
+# Reactor sleep duration parameters are in milliseconds
+peer_gossip_sleep_duration = 100
+peer_query_maj23_sleep_duration = 2000
+
+##### transactions indexer configuration options #####
+[tx_index]
+
+# What indexer to use for transactions
+#
+# Options:
+#   1) "null" (default)
+#   2) "kv" - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend).
+indexer = "kv"
+
+# Comma-separated list of tags to index (by default the only tag is tx hash)
+#
+# It's recommended to index only a subset of tags due to possible memory
+# bloat. This is, of course, depends on the indexer's DB and the volume of
+# transactions.
+index_tags = ""
+
+# When set to true, tells indexer to index all tags. Note this may be not
+# desirable (see the comment above). IndexTags has a precedence over
+# IndexAllTags (i.e. when given both, IndexTags will be indexed).
+index_all_tags = false

docs/examples/node3/config/genesis.json

@@ -0,0 +1,39 @@
+{
+  "genesis_time": "0001-01-01T00:00:00Z",
+  "chain_id": "test-chain-A2i3OZ",
+  "validators": [
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "D+k4AdjnYPWbB9wmad137Bdpo/kAulOoTRQrLy/Qc4k="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "b56N5GCR1adcVRuENjfKw/mrm2dkhT7wNZXV/SDsKsU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "IgZDpJvGA0TAamicA8ircy+RX/BkUlj6DXwM791ywIU="
+      },
+      "power": 10,
+      "name": ""
+    },
+    {
+      "pub_key": {
+        "type": "AC26791624DE60",
+        "value": "KGAZfxZvIZ7abbeIQ85U1ECG6+I62KSdaH8ulc0+OiU="
+      },
+      "power": 10,
+      "name": ""
+    }
+  ],
+  "app_hash": ""
+}

docs/examples/node3/config/node_key.json

@@ -0,0 +1 @@
+{"priv_key":{"type":"954568A3288910","value":"9Y9xp/tUJJ6pHTF5SUV0bGKYSdVbFtMHu+Lr8S0JBSZAwneaejnfOEU1LMKOnQ07skrDUaJcj5di3jAyjxJzqg=="}}

docs/examples/node3/config/priv_validator.json

@@ -0,0 +1,14 @@
+{
+  "address": "9A1A6914EB5F4FF0269C7EEEE627C27310CC64F9",
+  "pub_key": {
+    "type": "AC26791624DE60",
+    "value": "KGAZfxZvIZ7abbeIQ85U1ECG6+I62KSdaH8ulc0+OiU="
+  },
+  "last_height": 0,
+  "last_round": 0,
+  "last_step": 0,
+  "priv_key": {
+    "type": "954568A3288910",
+    "value": "jb52LZ5gp+eQ8nJlFK1z06nBMp1gD8ICmyzdM1icGOgoYBl/Fm8hntptt4hDzlTUQIbr4jrYpJ1ofy6VzT46JQ=="
+  }
+}

docs/examples/node3/genesis.json

@@ -1,42 +0,0 @@
-{
-	"genesis_time":"0001-01-01T00:00:00Z",
-	"chain_id":"test-chain-wt7apy",
-	"validators":[
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data":"F08446C80A33E10D620E21450821B58D053778528F2B583D423B3E46EC647D30"
-			},
-			"power":10,
-			"name":"node1"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "A8423F70A9E512643B4B00F7C3701ECAD1F31B0A1FAA45852C41046353B9A07F"
-			},
-			"power":10,
-			"name":"node2"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "E52EFFAEDFE1D618ECDA71DE3B23592B3612CAABA0C10826E4C3120B2198C29A"
-			},
-			"power":10,
-			"name":"node3"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "2B8FC09C07955A02998DFE5AF1AAD1C44115ECA7635FF51A867CF4265D347C07"
-			},
-			"power":10,
-			"name":"node4"
-		}
-	],
-	"app_hash":""
-}

docs/examples/node3/node_key.json

@@ -1,6 +0,0 @@
-{
-   "priv_key" : {
-      "data" : "95136FCC97E4446B3141EDF9841078107ECE755E99925D79CCBF91085492680B3CA1034D9917DF1DED4E4AB2D9BC225919F6CB2176F210D2368697CC339DF4E7",
-      "type" : "ed25519"
-   }
-}

docs/examples/node3/priv_validator.json

@@ -1,15 +0,0 @@
-{
-	"address": "6D6A1E313B407B5474106CA8759C976B777AB659",
-	"pub_key": {
-		"type": "ed25519",
-		"data": "E52EFFAEDFE1D618ECDA71DE3B23592B3612CAABA0C10826E4C3120B2198C29A"
-	},
-	"last_height": 0,
-	"last_round": 0,
-	"last_step": 0,
-	"last_signature": null,
-	"priv_key": {
-		"type": "ed25519",
-		"data": "622432A370111A5C25CFE121E163FE709C9D5C95F551EDBD7A2C69A8545C9B76E52EFFAEDFE1D618ECDA71DE3B23592B3612CAABA0C10826E4C3120B2198C29A"
-	}
-}

docs/examples/node4/config.toml

@@ -1,15 +0,0 @@
-# This is a TOML config file.
-# For more information, see https://github.com/toml-lang/toml
-
-proxy_app = "tcp://127.0.0.1:46658"
-moniker = "penguin"
-fast_sync = true
-db_backend = "leveldb"
-log_level = "state:info,*:error"
-
-[rpc]
-laddr = "tcp://0.0.0.0:46657"
-
-[p2p]
-laddr = "tcp://0.0.0.0:46656"
-seeds = ""

docs/examples/node4/genesis.json

@@ -1,42 +0,0 @@
-{
-	"genesis_time":"0001-01-01T00:00:00Z",
-	"chain_id":"test-chain-wt7apy",
-	"validators":[
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data":"F08446C80A33E10D620E21450821B58D053778528F2B583D423B3E46EC647D30"
-			},
-			"power":10,
-			"name":"node1"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "A8423F70A9E512643B4B00F7C3701ECAD1F31B0A1FAA45852C41046353B9A07F"
-			},
-			"power":10,
-			"name":"node2"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "E52EFFAEDFE1D618ECDA71DE3B23592B3612CAABA0C10826E4C3120B2198C29A"
-			},
-			"power":10,
-			"name":"node3"
-		}
-		,
-		{
-			"pub_key":{
-				"type":"ed25519",
-				"data": "2B8FC09C07955A02998DFE5AF1AAD1C44115ECA7635FF51A867CF4265D347C07"
-			},
-			"power":10,
-			"name":"node4"
-		}
-	],
-	"app_hash":""
-}

docs/examples/node4/node_key.json

@@ -1,6 +0,0 @@
-{
-   "priv_key" : {
-      "data" : "8895D6C9A1B46AB83A8E2BAE2121B8C3E245B9E9126EBD797FEAC5058285F2F64FDE2E8182C88AD5185A49D837C581465D57BD478C41865A66D7D9742D8AEF57",
-      "type" : "ed25519"
-   }
-}

docs/examples/node4/priv_validator.json

@@ -1,15 +0,0 @@
-{
-	"address": "829A9663611D3DD88A3D84EA0249679D650A0755",
-	"pub_key": {
-		"type": "ed25519",
-		"data": "2B8FC09C07955A02998DFE5AF1AAD1C44115ECA7635FF51A867CF4265D347C07"
-	},
-	"last_height": 0,
-	"last_round": 0,
-	"last_step": 0,
-	"last_signature": null,
-	"priv_key": {
-		"type": "ed25519",
-		"data": "0A604D1C9AE94A50150BF39E603239092F9392E4773F4D8F4AC1D86E6438E89E2B8FC09C07955A02998DFE5AF1AAD1C44115ECA7635FF51A867CF4265D347C07"
-	}
-}

docs/index.rst

@@ -40,10 +40,8 @@ Tendermint Tools
    :maxdepth: 2
 
    deploy-testnets.rst
-   tools/ansible.rst
+   terraform-and-ansible.rst
    tools/docker.rst
-   tools/mintnet-kubernetes.rst
-   tools/terraform-digitalocean.rst
    tools/benchmarking.rst
    tools/monitoring.rst
 
@@ -57,7 +55,10 @@ Tendermint 102
    abci-spec.rst
    app-architecture.rst
    app-development.rst
+   subscribing-to-events-via-websocket.rst
+   indexing-transactions.rst
    how-to-read-logs.rst
+   running-in-production.rst
 
 Tendermint 201
 --------------
@@ -67,6 +68,7 @@ Tendermint 201
 
    specification.rst
    determinism.rst
+   transactional-semantics.rst
 
 * For a deeper dive, see `this thesis <https://atrium.lib.uoguelph.ca/xmlui/handle/10214/9769>`__.
 * There is also the `original whitepaper <https://tendermint.com/static/docs/tendermint.pdf>`__, though it is now quite outdated.

docs/indexing-transactions.rst

@@ -0,0 +1,100 @@
+Indexing Transactions
+=====================
+
+Tendermint allows you to index transactions and later query or subscribe to
+their results.
+
+Let's take a look at the ``[tx_index]`` config section:
+
+::
+
+    ##### transactions indexer configuration options #####
+    [tx_index]
+
+    # What indexer to use for transactions
+    #
+    # Options:
+    #   1) "null" (default)
+    #   2) "kv" - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend).
+    indexer = "kv"
+
+    # Comma-separated list of tags to index (by default the only tag is tx hash)
+    #
+    # It's recommended to index only a subset of tags due to possible memory
+    # bloat. This is, of course, depends on the indexer's DB and the volume of
+    # transactions.
+    index_tags = ""
+
+    # When set to true, tells indexer to index all tags. Note this may be not
+    # desirable (see the comment above). IndexTags has a precedence over
+    # IndexAllTags (i.e. when given both, IndexTags will be indexed).
+    index_all_tags = false
+
+By default, Tendermint will index all transactions by their respective hashes
+using an embedded simple indexer. Note, we are planning to add more options in
+the future (e.g., Postgresql indexer).
+
+Adding tags
+-----------
+
+In your application's ``DeliverTx`` method, add the ``Tags`` field with the
+pairs of UTF-8 encoded strings (e.g. "account.owner": "Bob", "balance":
+"100.0", "date": "2018-01-02").
+
+Example:
+
+::
+
+    func (app *KVStoreApplication) DeliverTx(tx []byte) types.Result {
+        ...
+        tags := []cmn.KVPair{
+          {[]byte("account.name"), []byte("igor")},
+          {[]byte("account.address"), []byte("0xdeadbeef")},
+          {[]byte("tx.amount"), []byte("7")},
+        }
+        return types.ResponseDeliverTx{Code: code.CodeTypeOK, Tags: tags}
+    }
+
+If you want Tendermint to only index transactions by "account.name" tag, in the
+config set ``tx_index.index_tags="account.name"``. If you to index all tags,
+set ``index_all_tags=true``
+
+Note, there are a few predefined tags:
+
+- ``tm.event`` (event type)
+- ``tx.hash`` (transaction's hash)
+- ``tx.height`` (height of the block transaction was committed in)
+
+Tendermint will throw a warning if you try to use any of the above keys.
+
+Quering transactions
+--------------------
+
+You can query the transaction results by calling ``/tx_search`` RPC endpoint:
+
+::
+
+    curl "localhost:46657/tx_search?query=\"account.name='igor'\"&prove=true"
+
+Check out `API docs <https://tendermint.github.io/slate/?shell#txsearch>`__ for more
+information on query syntax and other options.
+
+Subscribing to transactions
+---------------------------
+
+Clients can subscribe to transactions with the given tags via Websocket by
+providing a query to ``/subscribe`` RPC endpoint.
+
+::
+
+    {
+        "jsonrpc": "2.0",
+        "method": "subscribe",
+        "id": "0",
+        "params": {
+            "query": "account.name='igor'"
+        }
+    }
+
+Check out `API docs <https://tendermint.github.io/slate/#subscribe>`__ for more
+information on query syntax and other options.

docs/install.rst

@@ -1,56 +1,58 @@
 Install Tendermint
 ==================
 
+The fastest and easiest way to install the ``tendermint`` binary
+is to run `this script <https://github.com/tendermint/tendermint/blob/develop/scripts/install/install_tendermint_ubuntu.sh>`__ on
+a fresh Ubuntu instance,
+or `this script <https://github.com/tendermint/tendermint/blob/develop/scripts/install/install_tendermint_bsd.sh>`__
+on a fresh FreeBSD instance. Read the comments / instructions carefully (i.e., reset your terminal after running the script,
+make sure your okay with the network connections being made).
+
 From Binary
 -----------
 
-To download pre-built binaries, see the `Download page <https://tendermint.com/downloads>`__.
+To download pre-built binaries, see the `releases page <https://github.com/tendermint/tendermint/releases>`__.
 
 From Source
 -----------
 
-You'll need ``go``, maybe `dep <https://github.com/golang/dep>`__, and the Tendermint source code.
-
-Install Go
-^^^^^^^^^^
-
-Make sure you have `installed Go <https://golang.org/doc/install>`__ and
-set the ``GOPATH``. You should also put ``GOPATH/bin`` on your ``PATH``.
+You'll need ``go`` `installed <https://golang.org/doc/install>`__ and the required
+`environment variables set <https://github.com/tendermint/tendermint/wiki/Setting-GOPATH>`__
 
 Get Source Code
 ^^^^^^^^^^^^^^^
 
-You should be able to install the latest with a simple
+::
+
+    mkdir -p $GOPATH/src/github.com/tendermint
+    cd $GOPATH/src/github.com/tendermint
+    git clone https://github.com/tendermint/tendermint.git
+    cd tendermint
+
+Get Tools & Dependencies
+^^^^^^^^^^^^^^^^^^^^^^^^
 
 ::
 
-    go get github.com/tendermint/tendermint/cmd/tendermint
-
-Run ``tendermint --help`` and ``tendermint version`` to ensure your
-installation worked.
-
-If the installation failed, a dependency may have been updated and become
-incompatible with the latest Tendermint master branch. We solve this
-using the ``dep`` tool for dependency management.
-
-First, install ``dep``:
-
-::
-
-    cd $GOPATH/src/github.com/tendermint/tendermint
     make get_tools
+    make get_vendor_deps
 
-Now we can fetch the correct versions of each dependency by running:
+Compile
+^^^^^^^
 
 ::
 
-    make get_vendor_deps
     make install
 
-Note that even though ``go get`` originally failed, the repository was
-still cloned to the correct location in the ``$GOPATH``.
+to put the binary in ``$GOPATH/bin`` or use:
 
-The latest Tendermint Core version is now installed.
+::
+
+    make build
+
+to put the binary in ``./build``.
+
+The latest ``tendermint version`` is now installed.
 
 Reinstall
 ---------
@@ -86,20 +88,6 @@ do, use ``dep``, as above:
 Since the third option just uses ``dep`` right away, it should always
 work.
 
-Troubleshooting
----------------
-
-If ``go get`` failing bothers you, fetch the code using ``git``:
-
-::
-
-    mkdir -p $GOPATH/src/github.com/tendermint
-    git clone https://github.com/tendermint/tendermint $GOPATH/src/github.com/tendermint/tendermint
-    cd $GOPATH/src/github.com/tendermint/tendermint
-    make get_tools
-    make get_vendor_deps
-    make install
-
 Run
 ^^^
 

docs/running-in-production.rst

@@ -0,0 +1,203 @@
+Running in production
+=====================
+
+Logging
+-------
+
+Default logging level (``main:info,state:info,*:``) should suffice for normal
+operation mode. Read `this post
+<https://blog.cosmos.network/one-of-the-exciting-new-features-in-0-10-0-release-is-smart-log-level-flag-e2506b4ab756>`__
+for details on how to configure ``log_level`` config variable. Some of the
+modules can be found `here <./how-to-read-logs.html#list-of-modules>`__. If
+you're trying to debug Tendermint or asked to provide logs with debug logging
+level, you can do so by running tendermint with ``--log_level="*:debug"``.
+
+DOS Exposure and Mitigation
+---------------------------
+
+Validators are supposed to setup `Sentry Node Architecture
+<https://blog.cosmos.network/tendermint-explained-bringing-bft-based-pos-to-the-public-blockchain-domain-f22e274a0fdb>`__
+to prevent Denial-of-service attacks. You can read more about it `here
+<https://github.com/tendermint/aib-data/blob/develop/medium/TendermintBFT.md>`__.
+
+P2P
+~~~
+
+The core of the Tendermint peer-to-peer system is ``MConnection``. Each
+connection has ``MaxPacketMsgPayloadSize``, which is the maximum packet size
+and bounded send & receive queues. One can impose restrictions on send &
+receive rate per connection (``SendRate``, ``RecvRate``).
+
+RPC
+~~~
+
+Endpoints returning multiple entries are limited by default to return 30
+elements (100 max).
+
+Rate-limiting and authentication are another key aspects to help protect
+against DOS attacks. While in the future we may implement these features, for
+now, validators are supposed to use external tools like `NGINX
+<https://www.nginx.com/blog/rate-limiting-nginx/>`__ or `traefik
+<https://docs.traefik.io/configuration/commons/#rate-limiting>`__ to achieve
+the same things.
+
+Debugging Tendermint
+--------------------
+
+If you ever have to debug Tendermint, the first thing you should probably do is
+to check out the logs. See `"How to read logs" <./how-to-read-logs.html>`__,
+where we explain what certain log statements mean.
+
+If, after skimming through the logs, things are not clear still, the second
+TODO is to query the `/status` RPC endpoint. It provides the necessary info:
+whenever the node is syncing or not, what height it is on, etc.
+
+```
+$ curl http(s)://{ip}:{rpcPort}/status
+```
+
+`/dump_consensus_state` will give you a detailed overview of the consensus
+state (proposer, lastest validators, peers states). From it, you should be able
+to figure out why, for example, the network had halted.
+
+```
+$ curl http(s)://{ip}:{rpcPort}/dump_consensus_state
+```
+
+There is a reduced version of this endpoint - `/consensus_state`, which
+returns just the votes seen at the current height.
+
+- `Github Issues <https://github.com/tendermint/tendermint/issues>`__
+- `StackOverflow questions <https://stackoverflow.com/questions/tagged/tendermint>`__
+
+Monitoring Tendermint
+---------------------
+
+Each Tendermint instance has a standard `/health` RPC endpoint, which responds
+with 200 (OK) if everything is fine and 500 (or no response) - if something is
+wrong.
+
+Other useful endpoints include mentioned earlier `/status`, `/net_info` and
+`/validators`.
+
+We have a small tool, called tm-monitor, which outputs information from the
+endpoints above plus some statistics. The tool can be found `here
+<https://github.com/tendermint/tools/tree/master/tm-monitor>`__.
+
+What happens when my app dies?
+------------------------------
+
+You are supposed to run Tendermint under a `process supervisor
+<https://en.wikipedia.org/wiki/Process_supervision>`__ (like systemd or runit).
+It will ensure Tendermint is always running (despite possible errors).
+
+Getting back to the original question, if your application dies, Tendermint
+will panic. After a process supervisor restarts your application, Tendermint
+should be able to reconnect successfully. The order of restart does not matter
+for it.
+
+Signal handling
+---------------
+
+We catch SIGINT and SIGTERM and try to clean up nicely. For other signals we
+use the default behaviour in Go: `Default behavior of signals in Go programs
+<https://golang.org/pkg/os/signal/#hdr-Default_behavior_of_signals_in_Go_programs>`__.
+
+Hardware
+--------
+
+Processor and Memory
+~~~~~~~~~~~~~~~~~~~~
+
+While actual specs vary depending on the load and validators count, minimal requirements are:
+
+- 1GB RAM
+- 25GB of disk space
+- 1.4 GHz CPU
+
+SSD disks are preferable for applications with high transaction throughput.
+
+Recommended:
+
+- 2GB RAM
+- 100GB SSD
+- x64 2.0 GHz 2v CPU
+
+While for now, Tendermint stores all the history and it may require significant
+disk space over time, we are planning to implement state syncing (See `#828
+<https://github.com/tendermint/tendermint/issues/828>`__). So, storing all the
+past blocks will not be necessary.
+
+Operating Systems
+~~~~~~~~~~~~~~~~~
+
+Tendermint can be compiled for a wide range of operating systems thanks to Go
+language (the list of $OS/$ARCH pairs can be found `here
+<https://golang.org/doc/install/source#environment>`__).
+
+While we do not favor any operation system, more secure and stable Linux server
+distributions (like Centos) should be preferred over desktop operation systems
+(like Mac OS).
+
+Misc.
+~~~~~
+
+NOTE: if you are going to use Tendermint in a public domain, make sure you read
+`hardware recommendations (see "4. Hardware")
+<https://cosmos.network/validators>`__ for a validator in the Cosmos network.
+
+Configuration parameters
+------------------------
+
+- ``p2p.flush_throttle_timeout``
+  ``p2p.max_packet_msg_payload_size``
+  ``p2p.send_rate``
+  ``p2p.recv_rate``
+
+If you are going to use Tendermint in a private domain and you have a private
+high-speed network among your peers, it makes sense to lower flush throttle
+timeout and increase other params.
+
+::
+
+    [p2p]
+
+    send_rate=20000000 # 2MB/s
+    recv_rate=20000000 # 2MB/s
+    flush_throttle_timeout=10
+    max_packet_msg_payload_size=10240 # 10KB
+
+- ``mempool.recheck``
+
+After every block, Tendermint rechecks every transaction left in the mempool to
+see if transactions committed in that block affected the application state, so
+some of the transactions left may become invalid. If that does not apply to
+your application, you can disable it by setting ``mempool.recheck=false``.
+
+- ``mempool.broadcast``
+
+Setting this to false will stop the mempool from relaying transactions to other
+peers until they are included in a block. It means only the peer you send the
+tx to will see it until it is included in a block.
+
+- ``consensus.skip_timeout_commit``
+
+We want skip_timeout_commit=false when there is economics on the line because
+proposers should wait to hear for more votes. But if you don't care about that
+and want the fastest consensus, you can skip it. It will be kept false by
+default for public deployments (e.g. `Cosmos Hub
+<https://cosmos.network/intro/hub>`__) while for enterprise applications,
+setting it to true is not a problem.
+
+- ``consensus.peer_gossip_sleep_duration``
+
+You can try to reduce the time your node sleeps before checking if theres something to send its peers.
+
+- ``consensus.timeout_commit``
+
+You can also try lowering ``timeout_commit`` (time we sleep before proposing the next block).
+
+- ``consensus.max_block_size_txs``
+
+By default, the maximum number of transactions per a block is 10_000. Feel free
+to change it to suit your needs.

docs/spec/README.md

@@ -0,0 +1,76 @@
+# Tendermint Specification
+
+This is a markdown specification of the Tendermint blockchain.
+It defines the base data structures, how they are validated,
+and how they are communicated over the network.
+
+If you find discrepancies between the spec and the code that
+do not have an associated issue or pull request on github,
+please submit them to our [bug bounty](https://tendermint.com/security)!
+
+## Contents
+
+- [Overview](#overview)
+
+### Data Structures
+
+- [Encoding and Digests](https://github.com/tendermint/tendermint/blob/master/docs/spec/blockchain/encoding.md)
+- [Blockchain](https://github.com/tendermint/tendermint/blob/master/docs/spec/blockchain/blockchain.md)
+- [State](https://github.com/tendermint/tendermint/blob/master/docs/spec/blockchain/state.md)
+
+### Consensus Protocol
+
+- TODO
+
+### P2P and Network Protocols
+
+- [The Base P2P Layer](https://github.com/tendermint/tendermint/tree/master/docs/spec/p2p): multiplex the protocols ("reactors") on authenticated and encrypted TCP connections
+- [Peer Exchange (PEX)](https://github.com/tendermint/tendermint/tree/master/docs/spec/reactors/pex): gossip known peer addresses so peers can find each other
+- [Block Sync](https://github.com/tendermint/tendermint/tree/master/docs/spec/reactors/block_sync): gossip blocks so peers can catch up quickly
+- [Consensus](https://github.com/tendermint/tendermint/tree/master/docs/spec/reactors/consensus): gossip votes and block parts so new blocks can be committed
+- [Mempool](https://github.com/tendermint/tendermint/tree/master/docs/spec/reactors/mempool): gossip transactions so they get included in blocks
+- Evidence: TODO
+
+### More
+- Light Client: TODO
+- Persistence: TODO
+
+## Overview
+
+Tendermint provides Byzantine Fault Tolerant State Machine Replication using
+hash-linked batches of transactions. Such transaction batches are called "blocks".
+Hence, Tendermint defines a "blockchain".
+
+Each block in Tendermint has a unique index - its Height.
+A block at `Height == H` can only be committed *after* the
+block at `Height == H-1`.
+Each block is committed by a known set of weighted Validators.
+Membership and weighting within this set may change over time.
+Tendermint guarantees the safety and liveness of the blockchain
+so long as less than 1/3 of the total weight of the Validator set
+is malicious or faulty.
+
+A commit in Tendermint is a set of signed messages from more than 2/3 of
+the total weight of the current Validator set. Validators take turns proposing
+blocks and voting on them. Once enough votes are received, the block is considered
+committed. These votes are included in the *next* block as proof that the previous block
+was committed - they cannot be included in the current block, as that block has already been
+created.
+
+Once a block is committed, it can be executed against an application.
+The application returns results for each of the transactions in the block.
+The application can also return changes to be made to the validator set,
+as well as a cryptographic digest of its latest state.
+
+Tendermint is designed to enable efficient verification and authentication
+of the latest state of the blockchain. To achieve this, it embeds
+cryptographic commitments to certain information in the block "header".
+This information includes the contents of the block (eg. the transactions),
+the validator set committing the block, as well as the various results returned by the application.
+Note, however, that block execution only occurs *after* a block is committed.
+Thus, application results can only be included in the *next* block.
+
+Also note that information like the transaction results and the validator set are never
+directly included in the block - only their cryptographic digests (Merkle roots) are.
+Hence, verification of a block requires a separate data structure to store this information.
+We call this the `State`. Block verification also requires access to the previous block.

docs/spec/blockchain/blockchain.md

@@ -162,7 +162,7 @@ We refer to certain globally available objects:
 and `state` keeps track of the validator set, the consensus parameters
 and other results from the application.
 Elements of an object are accessed as expected,
-ie. `block.Header`. See [here](state.md) for the definition of `state`.
+ie. `block.Header`. See [here](https://github.com/tendermint/tendermint/blob/master/docs/spec/blockchain/state.md) for the definition of `state`.
 
 ### Header