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metrics.go
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metrics.go
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// Copyright 2020 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package sink
import (
"github.com/prometheus/client_golang/prometheus"
)
var (
execBatchHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "txn_batch_size",
Help: "Bucketed histogram of batch size of a txn.",
Buckets: prometheus.ExponentialBuckets(1, 2, 18),
}, []string{"capture", "changefeed"})
execTxnHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "txn_exec_duration",
Help: "Bucketed histogram of processing time (s) of a txn.",
Buckets: prometheus.ExponentialBuckets(0.002 /* 2 ms */, 2, 18),
}, []string{"capture", "changefeed"})
execDDLHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "ddl_exec_duration",
Help: "Bucketed histogram of processing time (s) of a ddl.",
Buckets: prometheus.ExponentialBuckets(0.01, 2, 18),
}, []string{"capture", "changefeed"})
executionErrorCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "execution_error",
Help: "total count of execution errors",
}, []string{"capture", "changefeed"})
conflictDetectDurationHis = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "conflict_detect_duration",
Help: "Bucketed histogram of conflict detect time (s) for single DML statement",
Buckets: prometheus.ExponentialBuckets(0.001 /* 1 ms */, 2, 20),
}, []string{"capture", "changefeed"})
bucketSizeCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "bucket_size",
Help: "size of the DML bucket",
}, []string{"capture", "changefeed", "bucket"})
totalRowsCountGauge = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "total_rows_count",
Help: "totla count of rows",
}, []string{"capture", "changefeed"})
totalFlushedRowsCountGauge = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "total_flushed_rows_count",
Help: "totla count of flushed rows",
}, []string{"capture", "changefeed"})
flushRowChangedDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "flush_event_duration_seconds",
Help: "Bucketed histogram of processing time (s) of flushing events in processor",
Buckets: prometheus.ExponentialBuckets(0.002 /* 2ms */, 2, 20),
}, []string{"capture", "changefeed", "type"})
bufferChanSizeGauge = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "ticdc",
Subsystem: "sink",
Name: "buffer_chan_size",
Help: "size of row changed event buffer channel in sink manager",
}, []string{"capture", "changefeed"})
)
// InitMetrics registers all metrics in this file
func InitMetrics(registry *prometheus.Registry) {
registry.MustRegister(execBatchHistogram)
registry.MustRegister(execTxnHistogram)
registry.MustRegister(execDDLHistogram)
registry.MustRegister(executionErrorCounter)
registry.MustRegister(conflictDetectDurationHis)
registry.MustRegister(bucketSizeCounter)
registry.MustRegister(totalRowsCountGauge)
registry.MustRegister(totalFlushedRowsCountGauge)
registry.MustRegister(flushRowChangedDuration)
registry.MustRegister(bufferChanSizeGauge)
}