tidb owner 源码
tidb owner 代码
文件路径：/metrics/owner.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 (
NewSessionHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "owner",
Name: "new_session_duration_seconds",
Help: "Bucketed histogram of processing time (s) of new session.",
Buckets: prometheus.ExponentialBuckets(0.0005, 2, 22), // 0.5ms ~ 1048s
}, []string{LblType, LblResult})
WatcherClosed = "watcher_closed"
Cancelled = "cancelled"
Deleted = "deleted"
SessionDone = "session_done"
CtxDone = "context_done"
WatchOwnerCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "owner",
Name: "watch_owner_total",
Help: "Counter of watch owner.",
}, []string{LblType, LblResult})
NoLongerOwner = "no_longer_owner"
CampaignOwnerCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "owner",
Name: "campaign_owner_total",
Help: "Counter of campaign owner.",
}, []string{LblType, LblResult})
)
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