github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/cdc/sink/metrics/tablesink/metrics.go (about)

     1  // Copyright 2023 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 tablesink
    15  
    16  import (
    17  	"github.com/pingcap/tiflow/cdc/metrics"
    18  	"github.com/prometheus/client_golang/prometheus"
    19  )
    20  
    21  // TotalRowsCountCounter is the total count of rows that are processed by sink.
    22  var TotalRowsCountCounter = prometheus.NewCounterVec(
    23  	prometheus.CounterOpts{
    24  		Namespace: "ticdc",
    25  		Subsystem: "sink",
    26  		Name:      "table_sink_total_rows_count",
    27  		Help:      "The total count of rows that are processed by table sink",
    28  	}, []string{"namespace", "changefeed"})
    29  
    30  // TableSinkFlushLagDuration is the  per event flush lag calculated by ts_after_event_flushed_to_downstream - commit_ts_of_event
    31  var TableSinkFlushLagDuration = prometheus.NewHistogramVec(
    32  	prometheus.HistogramOpts{
    33  		Namespace: "ticdc",
    34  		Subsystem: "sink",
    35  		Name:      "flush_lag_histogram",
    36  		Help:      "flush lag histogram of rows that are processed by table sink",
    37  		Buckets:   metrics.LagBucket(),
    38  	}, []string{"namespace", "changefeed"})
    39  
    40  // InitMetrics registers all metrics in this file.
    41  func InitMetrics(registry *prometheus.Registry) {
    42  	registry.MustRegister(TotalRowsCountCounter)
    43  	registry.MustRegister(TableSinkFlushLagDuration)
    44  }