tidb meta 源码
tidb meta 代码
文件路径：/metrics/meta.go
// Copyright 2018 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"
)
// Metrics
var (
GlobalAutoID = "global"
TableAutoIDAlloc = "alloc"
TableAutoIDRebase = "rebase"
AutoIDHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "autoid",
Name: "operation_duration_seconds",
Help: "Bucketed histogram of processing time (s) of handled autoid.",
Buckets: prometheus.ExponentialBuckets(0.0005, 2, 29), // 0.5ms ~ 1.5days
}, []string{LblType, LblResult})
GetSchemaDiff = "get_schema_diff"
SetSchemaDiff = "set_schema_diff"
GetDDLJobByIdx = "get_ddl_job"
UpdateDDLJob = "update_ddl_job"
GetHistoryDDLJob = "get_history_ddl_job"
MetaHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "meta",
Name: "operation_duration_seconds",
Help: "Bucketed histogram of processing time (s) of tidb meta data operations.",
Buckets: prometheus.ExponentialBuckets(0.0005, 2, 29), // 0.5ms ~ 1.5days
}, []string{LblType, LblResult})
)
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