github.com/pingcap/ticdc@v0.0.0-20220526033649-485a10ef2652/cdc/metrics_owner.go (about)

     1  // Copyright 2020 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 cdc
    15  
    16  import "github.com/prometheus/client_golang/prometheus"
    17  
    18  var (
    19  	changefeedCheckpointTsGauge = prometheus.NewGaugeVec(
    20  		prometheus.GaugeOpts{
    21  			Namespace: "ticdc",
    22  			Subsystem: "owner",
    23  			Name:      "checkpoint_ts",
    24  			Help:      "checkpoint ts of changefeeds",
    25  		}, []string{"changefeed"})
    26  	changefeedCheckpointTsLagGauge = prometheus.NewGaugeVec(
    27  		prometheus.GaugeOpts{
    28  			Namespace: "ticdc",
    29  			Subsystem: "owner",
    30  			Name:      "checkpoint_ts_lag",
    31  			Help:      "checkpoint ts lag of changefeeds",
    32  		}, []string{"changefeed"})
    33  	ownershipCounter = prometheus.NewCounter(
    34  		prometheus.CounterOpts{
    35  			Namespace: "ticdc",
    36  			Subsystem: "owner",
    37  			Name:      "ownership_counter",
    38  			Help:      "The counter of ownership increases every 5 seconds on a owner capture",
    39  		})
    40  	ownerMaintainTableNumGauge = prometheus.NewGaugeVec(
    41  		prometheus.GaugeOpts{
    42  			Namespace: "ticdc",
    43  			Subsystem: "owner",
    44  			Name:      "maintain_table_num",
    45  			Help:      "number of replicated tables maintained in owner",
    46  		}, []string{"changefeed", "capture", "type"})
    47  )
    48  
    49  const (
    50  	// total tables that have been dispatched to a single processor
    51  	maintainTableTypeTotal string = "total"
    52  	// tables that are dispatched to a processor and have not been finished yet
    53  	maintainTableTypeWip string = "wip"
    54  )
    55  
    56  // initOwnerMetrics registers all metrics used in owner
    57  func initOwnerMetrics(registry *prometheus.Registry) {
    58  	registry.MustRegister(changefeedCheckpointTsGauge)
    59  	registry.MustRegister(changefeedCheckpointTsLagGauge)
    60  	registry.MustRegister(ownershipCounter)
    61  	registry.MustRegister(ownerMaintainTableNumGauge)
    62  }