github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/pkg/orchestrator/metrics.go (about)

     1  // Copyright 2021 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package orchestrator
    15  
    16  import "github.com/prometheus/client_golang/prometheus"
    17  
    18  var (
    19  	etcdTxnSize = prometheus.NewHistogram(
    20  		prometheus.HistogramOpts{
    21  			Namespace: "ticdc",
    22  			Subsystem: "etcd_worker",
    23  			Name:      "etcd_txn_size_bytes",
    24  			Help:      "Bucketed histogram of a etcd txn size.",
    25  			Buckets:   prometheus.ExponentialBuckets(1, 2, 18),
    26  		})
    27  
    28  	etcdTxnExecDuration = prometheus.NewHistogram(
    29  		prometheus.HistogramOpts{
    30  			Namespace: "ticdc",
    31  			Subsystem: "etcd_worker",
    32  			Name:      "etcd_txn_exec_duration",
    33  			Help:      "Bucketed histogram of processing time (s) of a etcd txn.",
    34  			Buckets:   prometheus.ExponentialBuckets(0.002 /* 2 ms */, 2, 18),
    35  		})
    36  
    37  	etcdWorkerTickDuration = prometheus.NewHistogram(
    38  		prometheus.HistogramOpts{
    39  			Namespace: "ticdc",
    40  			Subsystem: "etcd_worker",
    41  			Name:      "tick_reactor_duration",
    42  			Help:      "Bucketed histogram of etcdWorker tick reactor time (s).",
    43  			Buckets:   prometheus.ExponentialBuckets(0.01 /* 10 ms */, 2, 18),
    44  		})
    45  )
    46  
    47  // InitMetrics registers all metrics in this file
    48  func InitMetrics(registry *prometheus.Registry) {
    49  	registry.MustRegister(etcdTxnSize)
    50  	registry.MustRegister(etcdTxnExecDuration)
    51  	registry.MustRegister(etcdWorkerTickDuration)
    52  }