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internal/proxy: add initial set of abci metrics backport (#7342)

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* internal/proxy: add initial set of abci metrics (#7115)

This PR adds an initial set of metrics for use ABCI. The initial metrics enable the calculation of timing histograms and call counts for each of the ABCI methods. The metrics are also labeled as either 'sync' or 'async' to determine if the method call was performed using ABCI's `*Async` methods.

An example of these metrics is included here for reference:
```
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="0.0001"} 0
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="0.0004"} 5
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="0.002"} 12
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="0.009"} 13
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="0.02"} 13
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="0.1"} 13
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="0.65"} 13
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="2"} 13
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="6"} 13
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="25"} 13
tendermint_abci_connection_method_timing_bucket{chain_id="ci",method="commit",type="sync",le="+Inf"} 13
tendermint_abci_connection_method_timing_sum{chain_id="ci",method="commit",type="sync"} 0.007802058000000001
tendermint_abci_connection_method_timing_count{chain_id="ci",method="commit",type="sync"} 13
```

These metrics can easily be graphed using prometheus's `histogram_quantile(...)` method to pick out a particular quantile to graph or examine. I chose buckets that were somewhat of an estimate of expected range of times for ABCI operations. They start at .0001 seconds and range to 25 seconds. The hope is that this range captures enough possible times to be useful for us and operators.

* lint++

* docs: add abci timing metrics to the metrics docs (#7311)

* cherry-pick fixup
This commit is contained in:
William Banfield
2021-11-30 10:48:07 -05:00
committed by GitHub
parent 1c1ce83e2d
commit 7bf7ff6639
17 changed files with 147 additions and 39 deletions
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docs/nodes/metrics.md
+13 -2
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@@ -20,6 +20,7 @@ The following metrics are available:
| **Name** | **Type** | **Tags** | **Description** |
| -------------------------------------- | --------- | ------------- | ---------------------------------------------------------------------- |
| abci_connection_method_timing | Histogram | method, type | Timings for each of the ABCI methods |
| consensus_height | Gauge | | Height of the chain |
| consensus_validators | Gauge | | Number of validators |
| consensus_validators_power | Gauge | | Total voting power of all validators |
@@ -55,6 +56,16 @@ The following metrics are available:
Percentage of missing + byzantine validators:
```md
((consensus\_byzantine\_validators\_power + consensus\_missing\_validators\_power) / consensus\_validators\_power) * 100
```prometheus
((consensus_byzantine_validators_power + consensus_missing_validators_power) / consensus_validators_power) * 100
```
Rate at which the application is responding to each ABCI method call.
```
sum(rate(tendermint_abci_connection_method_timing_count[5m])) by (method)
```
The 95th percentile response time for the application to the `deliver_tx` ABCI method call.
```
histogram_quantile(0.95, sum by(le) (rate(tendermint_abci_connection_method_timing_bucket{method="deliver_tx"}[5m])))
```