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

     1  // Copyright 2019 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 loader
    15  
    16  import (
    17  	"github.com/pingcap/tiflow/engine/pkg/promutil"
    18  	"github.com/prometheus/client_golang/prometheus"
    19  )
    20  
    21  type metricProxies struct {
    22  	loaderExitWithErrorCounter *prometheus.CounterVec
    23  }
    24  
    25  func newMetricProxies(factory promutil.Factory) *metricProxies {
    26  	return &metricProxies{
    27  		loaderExitWithErrorCounter: factory.NewCounterVec(
    28  			prometheus.CounterOpts{
    29  				Namespace: "dm",
    30  				Subsystem: "loader",
    31  				Name:      "exit_with_error_count",
    32  				Help:      "counter for loader exits with error",
    33  			}, []string{"task", "source_id", "resumable_err"}),
    34  	}
    35  }
    36  
    37  var defaultMetricProxies = newMetricProxies(&promutil.PromFactory{})
    38  
    39  // RegisterMetrics registers metrics.
    40  func RegisterMetrics(registry *prometheus.Registry) {
    41  	registry.MustRegister(defaultMetricProxies.loaderExitWithErrorCounter)
    42  }
    43  
    44  func (l *LightningLoader) removeLabelValuesWithTaskInMetrics(task, source string) {
    45  	labels := prometheus.Labels{"task": task, "source_id": source}
    46  	l.metricProxies.loaderExitWithErrorCounter.DeletePartialMatch(labels)
    47  }