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p2p: Per channel metrics (#3666) (#3677)

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* Add `chID` label to sent/receive byte mtrics
* add changelog pending entry
This commit is contained in:
Sean Braithwaite 2019-06-05 11:22:00 +02:00 committed by Alexander Simmerl
parent 2a23eca368
commit c9ef824ddf
4 changed files with 46 additions and 33 deletions
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1
CHANGELOG_PENDING.md
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@ -22,5 +22,6 @@
### FEATURES:
### IMPROVEMENTS:
- [p2p] \#3666 Add per channel telemtry to improve reactor observability
### BUG FIXES:

56
docs/tendermint-core/metrics.md
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@ -14,34 +14,34 @@ Listen address can be changed in the config file (see
The following metrics are available:
| **Name** | **Type** | **Since** | **Tags** | **Description** |
|-----------------------------------------|-----------|-----------|----------|-----------------------------------------------------------------|
| consensus\_height | Gauge | 0.21.0 | | Height of the chain |
| consensus\_validators | Gauge | 0.21.0 | | Number of validators |
| consensus\_validators\_power | Gauge | 0.21.0 | | Total voting power of all validators |
| consensus\_missing\_validators | Gauge | 0.21.0 | | Number of validators who did not sign |
| consensus\_missing\_validators\_power | Gauge | 0.21.0 | | Total voting power of the missing validators |
| consensus\_byzantine\_validators | Gauge | 0.21.0 | | Number of validators who tried to double sign |
| consensus\_byzantine\_validators\_power | Gauge | 0.21.0 | | Total voting power of the byzantine validators |
| consensus\_block\_interval\_seconds | Histogram | 0.21.0 | | Time between this and last block (Block.Header.Time) in seconds |
| consensus\_rounds | Gauge | 0.21.0 | | Number of rounds |
| consensus\_num\_txs | Gauge | 0.21.0 | | Number of transactions |
| consensus\_block\_parts | counter | on dev | peer\_id | number of blockparts transmitted by peer |
| consensus\_latest\_block\_height | gauge | on dev | | /status sync\_info number |
| consensus\_fast\_syncing | gauge | on dev | | either 0 (not fast syncing) or 1 (syncing) |
| consensus\_total\_txs | Gauge | 0.21.0 | | Total number of transactions committed |
| consensus\_block\_size\_bytes | Gauge | 0.21.0 | | Block size in bytes |
| p2p\_peers | Gauge | 0.21.0 | | Number of peers node's connected to |
| p2p\_peer\_receive\_bytes\_total | counter | on dev | peer\_id | number of bytes received from a given peer |
| p2p\_peer\_send\_bytes\_total | counter | on dev | peer\_id | number of bytes sent to a given peer |
| p2p\_peer\_pending\_send\_bytes | gauge | on dev | peer\_id | number of pending bytes to be sent to a given peer |
| p2p\_num\_txs | gauge | on dev | peer\_id | number of transactions submitted by each peer\_id |
| p2p\_pending\_send\_bytes | gauge | on dev | peer\_id | amount of data pending to be sent to peer |
| mempool\_size | Gauge | 0.21.0 | | Number of uncommitted transactions |
| mempool\_tx\_size\_bytes | histogram | on dev | | transaction sizes in bytes |
| mempool\_failed\_txs | counter | on dev | | number of failed transactions |
| mempool\_recheck\_times | counter | on dev | | number of transactions rechecked in the mempool |
| state\_block\_processing\_time | histogram | on dev | | time between BeginBlock and EndBlock in ms |
| **Name** | **Type** | **Since** | **Tags** | **Description** |
|-----------------------------------------|-----------|-----------|----------------|-----------------------------------------------------------------|
| consensus\_height | Gauge | 0.21.0 | | Height of the chain |
| consensus\_validators | Gauge | 0.21.0 | | Number of validators |
| consensus\_validators\_power | Gauge | 0.21.0 | | Total voting power of all validators |
| consensus\_missing\_validators | Gauge | 0.21.0 | | Number of validators who did not sign |
| consensus\_missing\_validators\_power | Gauge | 0.21.0 | | Total voting power of the missing validators |
| consensus\_byzantine\_validators | Gauge | 0.21.0 | | Number of validators who tried to double sign |
| consensus\_byzantine\_validators\_power | Gauge | 0.21.0 | | Total voting power of the byzantine validators |
| consensus\_block\_interval\_seconds | Histogram | 0.21.0 | | Time between this and last block (Block.Header.Time) in seconds |
| consensus\_rounds | Gauge | 0.21.0 | | Number of rounds |
| consensus\_num\_txs | Gauge | 0.21.0 | | Number of transactions |
| consensus\_block\_parts | counter | on dev | peer\_id | number of blockparts transmitted by peer |
| consensus\_latest\_block\_height | gauge | on dev | | /status sync\_info number |
| consensus\_fast\_syncing | gauge | on dev | | either 0 (not fast syncing) or 1 (syncing) |
| consensus\_total\_txs | Gauge | 0.21.0 | | Total number of transactions committed |
| consensus\_block\_size\_bytes | Gauge | 0.21.0 | | Block size in bytes |
| p2p\_peers | Gauge | 0.21.0 | | Number of peers node's connected to |
| p2p\_peer\_receive\_bytes\_total | counter | on dev | peer\_id, chID | number of bytes per channel received from a given peer |
| p2p\_peer\_send\_bytes\_total | counter | on dev | peer\_id, chID | number of bytes per channel sent to a given peer |
| p2p\_peer\_pending\_send\_bytes | gauge | on dev | peer\_id | number of pending bytes to be sent to a given peer |
| p2p\_num\_txs | gauge | on dev | peer\_id | number of transactions submitted by each peer\_id |
| p2p\_pending\_send\_bytes | gauge | on dev | peer\_id | amount of data pending to be sent to peer |
| mempool\_size | Gauge | 0.21.0 | | Number of uncommitted transactions |
| mempool\_tx\_size\_bytes | histogram | on dev | | transaction sizes in bytes |
| mempool\_failed\_txs | counter | on dev | | number of failed transactions |
| mempool\_recheck\_times | counter | on dev | | number of transactions rechecked in the mempool |
| state\_block\_processing\_time | histogram | on dev | | time between BeginBlock and EndBlock in ms |
## Useful queries

4
p2p/metrics.go
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@ -47,13 +47,13 @@ func PrometheusMetrics(namespace string, labelsAndValues ...string) *Metrics {
Subsystem: MetricsSubsystem,
Name: "peer_receive_bytes_total",
Help: "Number of bytes received from a given peer.",
}, append(labels, "peer_id")).With(labelsAndValues...),
}, append(labels, "peer_id", "chID")).With(labelsAndValues...),
PeerSendBytesTotal: prometheus.NewCounterFrom(stdprometheus.CounterOpts{
Namespace: namespace,
Subsystem: MetricsSubsystem,
Name: "peer_send_bytes_total",
Help: "Number of bytes sent to a given peer.",
}, append(labels, "peer_id")).With(labelsAndValues...),
}, append(labels, "peer_id", "chID")).With(labelsAndValues...),
PeerPendingSendBytes: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
Namespace: namespace,
Subsystem: MetricsSubsystem,

18
p2p/peer.go
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@ -248,7 +248,11 @@ func (p *peer) Send(chID byte, msgBytes []byte) bool {
}
res := p.mconn.Send(chID, msgBytes)
if res {
p.metrics.PeerSendBytesTotal.With("peer_id", string(p.ID())).Add(float64(len(msgBytes)))
labels := []string{
"peer_id", string(p.ID()),
"chID", fmt.Sprintf("%#x", chID),
}
p.metrics.PeerSendBytesTotal.With(labels...).Add(float64(len(msgBytes)))
}
return res
}
@ -263,7 +267,11 @@ func (p *peer) TrySend(chID byte, msgBytes []byte) bool {
}
res := p.mconn.TrySend(chID, msgBytes)
if res {
p.metrics.PeerSendBytesTotal.With("peer_id", string(p.ID())).Add(float64(len(msgBytes)))
labels := []string{
"peer_id", string(p.ID()),
"chID", fmt.Sprintf("%#x", chID),
}
p.metrics.PeerSendBytesTotal.With(labels...).Add(float64(len(msgBytes)))
}
return res
}
@ -369,7 +377,11 @@ func createMConnection(
// which does onPeerError.
panic(fmt.Sprintf("Unknown channel %X", chID))
}
p.metrics.PeerReceiveBytesTotal.With("peer_id", string(p.ID())).Add(float64(len(msgBytes)))
labels := []string{
"peer_id", string(p.ID()),
"chID", fmt.Sprintf("%#x", chID),
}
p.metrics.PeerReceiveBytesTotal.With(labels...).Add(float64(len(msgBytes)))
reactor.Receive(chID, p, msgBytes)
}