116 lines
4.0 KiB
Go
116 lines
4.0 KiB
Go
// Copyright 2018 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metrics
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import "github.com/prometheus/client_golang/prometheus"
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// Session metrics.
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var (
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SessionExecuteParseDuration = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "parse_duration_seconds",
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Help: "Bucketed histogram of processing time (s) in parse SQL.",
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Buckets: prometheus.ExponentialBuckets(0.00004, 2, 22), // 40us ~ 168s
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}, []string{LblSQLType})
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SessionExecuteCompileDuration = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "compile_duration_seconds",
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Help: "Bucketed histogram of processing time (s) in query optimize.",
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// Build plan may execute the statement, or allocate table ID, so it might take a long time.
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Buckets: prometheus.ExponentialBuckets(0.00004, 2, 22), // 40us ~ 168s
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}, []string{LblSQLType})
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SessionExecuteRunDuration = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "execute_duration_seconds",
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Help: "Bucketed histogram of processing time (s) in running executor.",
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Buckets: prometheus.ExponentialBuckets(0.0001, 2, 22), // 100us ~ 419s
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}, []string{LblSQLType})
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SchemaLeaseErrorCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "schema_lease_error_total",
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Help: "Counter of schema lease error",
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}, []string{LblType})
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SessionRetry = prometheus.NewHistogram(
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prometheus.HistogramOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "retry_num",
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Help: "Bucketed histogram of session retry count.",
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Buckets: prometheus.LinearBuckets(0, 1, 20), // 0 ~ 20
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})
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SessionRetryErrorCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "retry_error_total",
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Help: "Counter of session retry error.",
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}, []string{LblSQLType, LblType})
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TransactionCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "transaction_total",
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Help: "Counter of transactions.",
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}, []string{LblSQLType, LblType})
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SessionRestrictedSQLCounter = prometheus.NewCounter(
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prometheus.CounterOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "restricted_sql_total",
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Help: "Counter of internal restricted sql.",
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})
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StatementPerTransaction = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "transaction_statement_num",
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Help: "Bucketed histogram of statements count in each transaction.",
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Buckets: prometheus.ExponentialBuckets(1, 2, 16), // 1 ~ 65536
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}, []string{LblSQLType, LblType})
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TransactionDuration = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Namespace: "tidb",
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Subsystem: "session",
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Name: "transaction_duration_seconds",
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Help: "Bucketed histogram of a transaction execution duration, including retry.",
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Buckets: prometheus.ExponentialBuckets(0.001, 2, 20), // 1ms ~ 1049s
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}, []string{LblSQLType, LblType})
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)
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// Label constants.
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const (
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LblUnretryable = "unretryable"
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LblReachMax = "reach_max"
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LblOK = "ok"
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LblError = "error"
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LblRollback = "rollback"
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LblType = "type"
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LblDb = "db"
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LblResult = "result"
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LblSQLType = "sql_type"
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LblGeneral = "general"
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LblInternal = "internal"
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)
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