* Make sure config.TimeoutBroadcastTxCommit < rpcserver.WriteTimeout()
* remove redundant comment
* libs/rpc/http_server: move Read/WriteTimeout into Config
* increase defaults for read/write timeouts
Based on this article
https://www.digitalocean.com/community/tutorials/how-to-optimize-nginx-configuration
* WriteTimeout should be larger than TimeoutBroadcastTxCommit
* set a deadline for subscribing to txs
* extract duration into const
* add two changelog entries
* Update CHANGELOG_PENDING.md
Co-Authored-By: melekes <anton.kalyaev@gmail.com>
* Update CHANGELOG_PENDING.md
Co-Authored-By: melekes <anton.kalyaev@gmail.com>
* 12 -> 10
* changelog
* changelog
* limit number of /subscribe clients and queries per client
Add the following config variables (under [rpc] section):
* max_subscription_clients
* max_subscriptions_per_client
* timeout_broadcast_tx_commit
Fixes#2826
new HTTPClient interface for subscriptions
finalize HTTPClient events interface
remove EventSubscriber
fix data race
```
WARNING: DATA RACE
Read at 0x00c000a36060 by goroutine 129:
github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe.func1()
/go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:168 +0x1f0
Previous write at 0x00c000a36060 by goroutine 132:
github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe()
/go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:191 +0x4e0
github.com/tendermint/tendermint/rpc/client.WaitForOneEvent()
/go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178
github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1()
/go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298
testing.tRunner()
/usr/local/go/src/testing/testing.go:827 +0x162
Goroutine 129 (running) created at:
github.com/tendermint/tendermint/rpc/client.(*Local).Subscribe()
/go/src/github.com/tendermint/tendermint/rpc/client/localclient.go:164 +0x4b7
github.com/tendermint/tendermint/rpc/client.WaitForOneEvent()
/go/src/github.com/tendermint/tendermint/rpc/client/helpers.go:64 +0x178
github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync.func1()
/go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:139 +0x298
testing.tRunner()
/usr/local/go/src/testing/testing.go:827 +0x162
Goroutine 132 (running) created at:
testing.(*T).Run()
/usr/local/go/src/testing/testing.go:878 +0x659
github.com/tendermint/tendermint/rpc/client_test.TestTxEventsSentWithBroadcastTxSync()
/go/src/github.com/tendermint/tendermint/rpc/client/event_test.go:119 +0x186
testing.tRunner()
/usr/local/go/src/testing/testing.go:827 +0x162
==================
```
lite client works (tested manually)
godoc comments
httpclient: do not close the out channel
use TimeoutBroadcastTxCommit
no timeout for unsubscribe
but 1s Local (5s HTTP) timeout for resubscribe
format code
change Subscribe#out cap to 1
and replace config vars with RPCConfig
TimeoutBroadcastTxCommit can't be greater than rpcserver.WriteTimeout
rpc: Context as first parameter to all functions
reformat code
fixes after my own review
fixes after Ethan's review
add test stubs
fix config.toml
* fixes after manual testing
- rpc: do not recommend to use BroadcastTxCommit because it's slow and wastes
Tendermint resources (pubsub)
- rpc: better error in Subscribe and BroadcastTxCommit
- HTTPClient: do not resubscribe if err = ErrAlreadySubscribed
* fixes after Ismail's review
* Update rpc/grpc/grpc_test.go
Co-Authored-By: melekes <anton.kalyaev@gmail.com>
* docs: explain create_empty_blocks configurations
Closes#3307
* Vagrantfile: install nodejs for docs
* update docs instructions
npm install does not make sense since there's no packages.json file
* explain broadcast_tx_* tx format
Closes#536
* docs: explain how transaction ordering works
Closes#2904
* bring in consensus parameters explained
* example for create_empty_blocks_interval
* bring in explanation from https://github.com/tendermint/tendermint/issues/2487#issuecomment-424899799
* link to formatting instead of duplicating info
* bound mempool memory usage
Closes#3079
* rename SizeBytes to TxsTotalBytes
and other small fixes after Zarko's review
* rename MaxBytes to MaxTxsTotalBytes
* make ErrMempoolIsFull more informative
* expose mempool's txs_total_bytes via RPC
* test full response
* fixes after Ethan's review
* config: rename mempool.size to mempool.max_txs
https://github.com/tendermint/tendermint/pull/3248#discussion_r254034004
* test more cases
https://github.com/tendermint/tendermint/pull/3248#discussion_r254036532
* simplify test
* Revert "config: rename mempool.size to mempool.max_txs"
This reverts commit 39bfa3696177aa46195000b90655419a975d6ff7.
* rename count back to n_txs
to make a change non-breaking
* rename max_txs_total_bytes to max_txs_bytes
* format code
* fix TestWALPeriodicSync
The test was sometimes failing due to processFlushTicks being called too
early. The solution is to call wal#Start later in the test.
* Apply suggestions from code review
* green pubsub tests :OK:
* get rid of clientToQueryMap
* Subscribe and SubscribeUnbuffered
* start adapting other pkgs to new pubsub
* nope
* rename MsgAndTags to Message
* remove TagMap
it does not bring any additional benefits
* bring back EventSubscriber
* fix test
* fix data race in TestStartNextHeightCorrectly
```
Write at 0x00c0001c7418 by goroutine 796:
github.com/tendermint/tendermint/consensus.TestStartNextHeightCorrectly()
/go/src/github.com/tendermint/tendermint/consensus/state_test.go:1296 +0xad
testing.tRunner()
/usr/local/go/src/testing/testing.go:827 +0x162
Previous read at 0x00c0001c7418 by goroutine 858:
github.com/tendermint/tendermint/consensus.(*ConsensusState).addVote()
/go/src/github.com/tendermint/tendermint/consensus/state.go:1631 +0x1366
github.com/tendermint/tendermint/consensus.(*ConsensusState).tryAddVote()
/go/src/github.com/tendermint/tendermint/consensus/state.go:1476 +0x8f
github.com/tendermint/tendermint/consensus.(*ConsensusState).handleMsg()
/go/src/github.com/tendermint/tendermint/consensus/state.go:667 +0xa1e
github.com/tendermint/tendermint/consensus.(*ConsensusState).receiveRoutine()
/go/src/github.com/tendermint/tendermint/consensus/state.go:628 +0x794
Goroutine 796 (running) created at:
testing.(*T).Run()
/usr/local/go/src/testing/testing.go:878 +0x659
testing.runTests.func1()
/usr/local/go/src/testing/testing.go:1119 +0xa8
testing.tRunner()
/usr/local/go/src/testing/testing.go:827 +0x162
testing.runTests()
/usr/local/go/src/testing/testing.go:1117 +0x4ee
testing.(*M).Run()
/usr/local/go/src/testing/testing.go:1034 +0x2ee
main.main()
_testmain.go:214 +0x332
Goroutine 858 (running) created at:
github.com/tendermint/tendermint/consensus.(*ConsensusState).startRoutines()
/go/src/github.com/tendermint/tendermint/consensus/state.go:334 +0x221
github.com/tendermint/tendermint/consensus.startTestRound()
/go/src/github.com/tendermint/tendermint/consensus/common_test.go:122 +0x63
github.com/tendermint/tendermint/consensus.TestStateFullRound1()
/go/src/github.com/tendermint/tendermint/consensus/state_test.go:255 +0x397
testing.tRunner()
/usr/local/go/src/testing/testing.go:827 +0x162
```
* fixes after my own review
* fix formatting
* wait 100ms before kicking a subscriber out
+ a test for indexer_service
* fixes after my second review
* no timeout
* add changelog entries
* fix merge conflicts
* fix typos after Thane's review
Co-Authored-By: melekes <anton.kalyaev@gmail.com>
* reformat code
* rewrite indexer service in the attempt to fix failing test
https://github.com/tendermint/tendermint/pull/3227/#issuecomment-462316527
* Revert "rewrite indexer service in the attempt to fix failing test"
This reverts commit 0d9107a098230de7138abb1c201877c246e89ed1.
* another attempt to fix indexer
* fixes after Ethan's review
* use unbuffered channel when indexing transactions
Refs https://github.com/tendermint/tendermint/pull/3227#discussion_r258786716
* add a comment for EventBus#SubscribeUnbuffered
* format code
deliverTxResCh, like any other eventBus (pubsub) channel, is closed when
eventBus is stopped. We must check if the channel is still open. The
alternative approach is to not close any channels, which seems a bit
odd.
Fixes#2408
* Replaces our current http servers where connections stay open forever with ones with timeouts to prevent file descriptor exhaustion
* Use the correct handler
* Put in go routines
* fix err
* changelog
* rpc: export Read/WriteTimeout
The `broadcast_tx_commit` endpoint has it's own timeout.
If this is longer than the http server's WriteTimeout, the
user will receive an error. Here, we export the WriteTimeout
and set the broadcast_tx_commit timeout to be less than it.
In the future, we should use a config struct for the timeouts
to avoid the need to export. The broadcast_tx_commit timeout
may also become configurable, but we must check that it's less
than the server's WriteTimeout.
* use READ lock/unlock in ConsensusState#GetLastHeight
Refs #2721
* do not use defers when there's no need
* fix peer formatting (output its address instead of the pointer)
```
[54310]: E[11-02|11:59:39.851] Connection failed @ sendRoutine module=p2p peer=0xb78f00 conn=MConn{74.207.236.148:26656} err="pong timeout"
```
https://github.com/tendermint/tendermint/issues/2721#issuecomment-435326581
* panic if peer has no state
https://github.com/tendermint/tendermint/issues/2721#issuecomment-435347165
It's confusing that sometimes we check if peer has a state, but most of
the times we expect it to be there
1. add79700b5/mempool/reactor.go (L138)
2. add79700b5/rpc/core/consensus.go (L196) (edited)
I will change everything to always assume peer has a state and panic
otherwise
that should help identify issues earlier
* abci/localclient: extend lock on app callback
App callback should be protected by lock as well (note this was already
done for InitChainAsync, why not for others???). Otherwise, when we
execute the block, tx might come in and call the callback in the same
time we're updating it in execBlockOnProxyApp => DATA RACE
Fixes#2721
Consensus state is locked
```
goroutine 113333 [semacquire, 309 minutes]:
sync.runtime_SemacquireMutex(0xc00180009c, 0xc0000c7e00)
/usr/local/go/src/runtime/sema.go:71 +0x3d
sync.(*RWMutex).RLock(0xc001800090)
/usr/local/go/src/sync/rwmutex.go:50 +0x4e
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).GetRoundState(0xc001800000, 0x0)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:218 +0x46
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusReactor).queryMaj23Routine(0xc0017def80, 0x11104a0, 0xc0072488f0, 0xc007248
9c0)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/reactor.go:735 +0x16d
created by github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusReactor).AddPeer
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/reactor.go:172 +0x236
```
because localClient is locked
```
goroutine 1899 [semacquire, 309 minutes]:
sync.runtime_SemacquireMutex(0xc00003363c, 0xc0000cb500)
/usr/local/go/src/runtime/sema.go:71 +0x3d
sync.(*Mutex).Lock(0xc000033638)
/usr/local/go/src/sync/mutex.go:134 +0xff
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/abci/client.(*localClient).SetResponseCallback(0xc0001fb560, 0xc007868540)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/abci/client/local_client.go:32 +0x33
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/proxy.(*appConnConsensus).SetResponseCallback(0xc00002f750, 0xc007868540)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/proxy/app_conn.go:57 +0x40
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/state.execBlockOnProxyApp(0x1104e20, 0xc002ca0ba0, 0x11092a0, 0xc00002f750, 0xc0001fe960, 0xc000bfc660, 0x110cfe0, 0xc000090330, 0xc9d12, 0xc000d9d5a0, ...)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/state/execution.go:230 +0x1fd
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/state.(*BlockExecutor).ApplyBlock(0xc002c2a230, 0x7, 0x0, 0xc000eae880, 0x6, 0xc002e52c60, 0x16, 0x1f927, 0xc9d12, 0xc000d9d5a0, ...)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/state/execution.go:96 +0x142
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).finalizeCommit(0xc001800000, 0x1f928)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:1339 +0xa3e
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).tryFinalizeCommit(0xc001800000, 0x1f928)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:1270 +0x451
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).enterCommit.func1(0xc001800000, 0x0, 0x1f928)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:1218 +0x90
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).enterCommit(0xc001800000, 0x1f928, 0x0)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:1247 +0x6b8
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).addVote(0xc001800000, 0xc003d8dea0, 0xc000cf4cc0, 0x28, 0xf1, 0xc003bc7ad0, 0xc003bc7b10)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:1659 +0xbad
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).tryAddVote(0xc001800000, 0xc003d8dea0, 0xc000cf4cc0, 0x28, 0xf1, 0xf1, 0xf1)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:1517 +0x59
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).handleMsg(0xc001800000, 0xd98200, 0xc0070dbed0, 0xc000cf4cc0, 0x28)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:660 +0x64b
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).receiveRoutine(0xc001800000, 0x0)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:617 +0x670
created by github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus.(*ConsensusState).OnStart
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/consensus/state.go:311 +0x132
```
tx comes in and CheckTx is executed right when we execute the block
```
goroutine 111044 [semacquire, 309 minutes]:
sync.runtime_SemacquireMutex(0xc00003363c, 0x0)
/usr/local/go/src/runtime/sema.go:71 +0x3d
sync.(*Mutex).Lock(0xc000033638)
/usr/local/go/src/sync/mutex.go:134 +0xff
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/abci/client.(*localClient).CheckTxAsync(0xc0001fb0e0, 0xc002d94500, 0x13f, 0x280, 0x0)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/abci/client/local_client.go:85 +0x47
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/proxy.(*appConnMempool).CheckTxAsync(0xc00002f720, 0xc002d94500, 0x13f, 0x280, 0x1)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/proxy/app_conn.go:114 +0x51
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/mempool.(*Mempool).CheckTx(0xc002d3a320, 0xc002d94500, 0x13f, 0x280, 0xc0072355f0, 0x0, 0x0)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/mempool/mempool.go:316 +0x17b
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/core.BroadcastTxSync(0xc002d94500, 0x13f, 0x280, 0x0, 0x0, 0x0)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/core/mempool.go:93 +0xb8
reflect.Value.call(0xd85560, 0x10326c0, 0x13, 0xec7b8b, 0x4, 0xc00663f180, 0x1, 0x1, 0xc00663f180, 0xc00663f188, ...)
/usr/local/go/src/reflect/value.go:447 +0x449
reflect.Value.Call(0xd85560, 0x10326c0, 0x13, 0xc00663f180, 0x1, 0x1, 0x0, 0x0, 0xc005cc9344)
/usr/local/go/src/reflect/value.go:308 +0xa4
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/lib/server.makeHTTPHandler.func2(0x1102060, 0xc00663f100, 0xc0082d7900)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/lib/server/handlers.go:269 +0x188
net/http.HandlerFunc.ServeHTTP(0xc002c81f20, 0x1102060, 0xc00663f100, 0xc0082d7900)
/usr/local/go/src/net/http/server.go:1964 +0x44
net/http.(*ServeMux).ServeHTTP(0xc002c81b60, 0x1102060, 0xc00663f100, 0xc0082d7900)
/usr/local/go/src/net/http/server.go:2361 +0x127
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/lib/server.maxBytesHandler.ServeHTTP(0x10f8a40, 0xc002c81b60, 0xf4240, 0x1102060, 0xc00663f100, 0xc0082d7900)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/lib/server/http_server.go:219 +0xcf
github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/lib/server.RecoverAndLogHandler.func1(0x1103220, 0xc00121e620, 0xc0082d7900)
/root/go/src/github.com/MinterTeam/minter-go-node/vendor/github.com/tendermint/tendermint/rpc/lib/server/http_server.go:192 +0x394
net/http.HandlerFunc.ServeHTTP(0xc002c06ea0, 0x1103220, 0xc00121e620, 0xc0082d7900)
/usr/local/go/src/net/http/server.go:1964 +0x44
net/http.serverHandler.ServeHTTP(0xc001a1aa90, 0x1103220, 0xc00121e620, 0xc0082d7900)
/usr/local/go/src/net/http/server.go:2741 +0xab
net/http.(*conn).serve(0xc00785a3c0, 0x11041a0, 0xc000f844c0)
/usr/local/go/src/net/http/server.go:1847 +0x646
created by net/http.(*Server).Serve
/usr/local/go/src/net/http/server.go:2851 +0x2f5
```
* consensus: use read lock in Receive#VoteMessage
* use defer to unlock mutex because application might panic
* use defer in every method of the localClient
* add a changelog entry
* drain channels before Unsubscribe(All)
Read 55362ed766/libs/pubsub/pubsub.go (L13)
for the detailed explanation of the issue.
We'll need to fix it someday. Make sure to keep an eye on
https://github.com/tendermint/tendermint/blob/master/docs/architecture/adr-033-pubsub.md
* retry instead of panic when peer has no state in reactors other than consensus
in /dump_consensus_state RPC endpoint, skip a peer with no state
* rpc/core/mempool: simplify error messages
* rpc/core/mempool: use time.After instead of timer
also, do not log DeliverTx result (to be consistent with other memthods)
* unlock before calling the callback in reqRes#SetCallback
* Switch ports 466xx to be 266xx
This is done so the default ports aren't in the linux kernel's default ephemeral port range.
* Update ABCI import
* Bump cache on circleci
* Get more verbose output for debugging
* Bump abci dependency
* Fix accidental change of a block header's hash
* pin abci release
comment out failing consensus tests for now
rewrite rpc httpclient to use new pubsub package
import pubsub as tmpubsub, query as tmquery
make event IDs constants
EventKey -> EventTypeKey
rename EventsPubsub to PubSub
mempool does not use pubsub
rename eventsSub to pubsub
new subscribe API
fix channel size issues and consensus tests bugs
refactor rpc client
add missing discardFromChan method
add mutex
rename pubsub to eventBus
remove IsRunning from WSRPCConnection interface (not needed)
add a comment in broadcastNewRoundStepsAndVotes
rename registerEventCallbacks to broadcastNewRoundStepsAndVotes
See https://dave.cheney.net/2014/03/19/channel-axioms
stop eventBuses after reactor tests
remove unnecessary Unsubscribe
return subscribe helper function
move discardFromChan to where it is used
subscribe now returns an err
this gives us ability to refuse to subscribe if pubsub is at its max
capacity.
use context for control overflow
cache queries
handle err when subscribing in replay_test
rename testClientID to testSubscriber
extract var
set channel buffer capacity to 1 in replay_file
fix byzantine_test
unsubscribe from single event, not all events
refactor httpclient to return events to appropriate channels
return failing testReplayCrashBeforeWriteVote test
fix TestValidatorSetChanges
refactor code a bit
fix testReplayCrashBeforeWriteVote
add comment
fix TestValidatorSetChanges
fixes from Bucky's review
update comment [ci skip]
test TxEventBuffer
update changelog
fix TestValidatorSetChanges (2nd attempt)
only do wg.Done when no errors
benchmark event bus
create pubsub server inside NewEventBus
only expose config params (later if needed)
set buffer capacity to 0 so we are not testing cache
new tx event format: key = "Tx" plus a tag {"tx.hash": XYZ}
This should allow to subscribe to all transactions! or a specific one
using a query: "tm.events.type = Tx and tx.hash = '013ABF99434...'"
use TimeoutCommit instead of afterPublishEventNewBlockTimeout
TimeoutCommit is the time a node waits after committing a block, before
it goes into the next height. So it will finish everything from the last
block, but then wait a bit. The idea is this gives it time to hear more
votes from other validators, to strengthen the commit it includes in the
next block. But it also gives it time to hear about new transactions.
waitForBlockWithUpdatedVals
rewrite WAL crash tests
Task:
test that we can recover from any WAL crash.
Solution:
the old tests were relying on event hub being run in the same thread (we
were injecting the private validator's last signature).
when considering a rewrite, we considered two possible solutions: write
a "fuzzy" testing system where WAL is crashing upon receiving a new
message, or inject failures and trigger them in tests using something
like https://github.com/coreos/gofail.
remove sleep
no cs.Lock around wal.Save
test different cases (empty block, non-empty block, ...)
comments
add comments
test 4 cases: empty block, non-empty block, non-empty block with smaller part size, many blocks
fixes as per Bucky's last review
reset subscriptions on UnsubscribeAll
use a simple counter to track message for which we panicked
also, set a smaller part size for all test cases
