tidb log_backup 源码
tidb log_backup 代码
文件路径：/metrics/log_backup.go
// Copyright 2022 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metrics
import (
"github.com/prometheus/client_golang/prometheus"
)
// log backup metrics.
// see the `Help` field for details.
var (
LastCheckpoint = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: "tidb",
Subsystem: "log_backup",
Name: "last_checkpoint",
Help: "The last global checkpoint of log backup.",
}, []string{"task"})
AdvancerOwner = prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: "tidb",
Subsystem: "log_backup",
Name: "advancer_owner",
Help: "If the node is the owner of advancers, set this to `1`, otherwise `0`.",
ConstLabels: map[string]string{},
})
AdvancerTickDuration = prometheus.NewHistogramVec(prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "log_backup",
Name: "advancer_tick_duration_sec",
Help: "The time cost of each step during advancer ticking.",
Buckets: prometheus.ExponentialBuckets(0.01, 3.0, 8),
}, []string{"step"})
GetCheckpointBatchSize = prometheus.NewHistogramVec(prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "log_backup",
Name: "advancer_batch_size",
Help: "The batch size of scanning region or get region checkpoint.",
Buckets: prometheus.ExponentialBuckets(1, 2.0, 12),
}, []string{"type"})
RegionCheckpointRequest = prometheus.NewCounterVec(prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "log_backup",
Name: "region_request",
Help: "The failure / success stat requesting region checkpoints.",
}, []string{"result"})
RegionCheckpointFailure = prometheus.NewCounterVec(prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "log_backup",
Name: "region_request_failure",
Help: "The failure reasons of requesting region checkpoints.",
}, []string{"reason"})
)
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