tidb domain 源码
tidb domain 代码
文件路径：/metrics/domain.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 for the domain package.
var (
// LoadSchemaCounter records the counter of load schema.
LoadSchemaCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "domain",
Name: "load_schema_total",
Help: "Counter of load schema",
}, []string{LblType})
// LoadSchemaDuration records the duration of load schema.
LoadSchemaDuration = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "domain",
Name: "load_schema_duration_seconds",
Help: "Bucketed histogram of processing time (s) in load schema.",
Buckets: prometheus.ExponentialBuckets(0.001, 2, 20), // 1ms ~ 524s
})
// InfoCacheCounters are the counters of get/hit.
InfoCacheCounters = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "domain",
Name: "infocache_counters",
Help: "Counters of infoCache: get/hit.",
}, []string{LblAction, LblType})
// InfoCacheCounterGet is the total number of getting entry.
InfoCacheCounterGet = "get"
// InfoCacheCounterHit is the cache hit numbers for get.
InfoCacheCounterHit = "hit"
// LoadPrivilegeCounter records the counter of load privilege.
LoadPrivilegeCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "domain",
Name: "load_privilege_total",
Help: "Counter of load privilege",
}, []string{LblType})
// LoadSysVarCacheCounter records the counter of loading sysvars
LoadSysVarCacheCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "domain",
Name: "load_sysvarcache_total",
Help: "Counter of load sysvar cache",
}, []string{LblType})
SchemaValidatorStop = "stop"
SchemaValidatorRestart = "restart"
SchemaValidatorReset = "reset"
SchemaValidatorCacheEmpty = "cache_empty"
SchemaValidatorCacheMiss = "cache_miss"
// HandleSchemaValidate records the counter of handling schema validate.
HandleSchemaValidate = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "domain",
Name: "handle_schema_validate",
Help: "Counter of handle schema validate",
}, []string{LblType})
)
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