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// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package metrics
import "github.com/prometheus/client_golang/prometheus"
// Session metrics.
var (
SessionExecuteParseDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "parse_duration_seconds",
Help: "Bucketed histogram of processing time (s) in parse SQL.",
Buckets: prometheus.ExponentialBuckets(0.00004, 2, 28), // 40us ~ 1.5h
}, []string{LblSQLType})
SessionExecuteCompileDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "compile_duration_seconds",
Help: "Bucketed histogram of processing time (s) in query optimize.",
// Build plan may execute the statement, or allocate table ID, so it might take a long time.
Buckets: prometheus.ExponentialBuckets(0.00004, 2, 28), // 40us ~ 1.5h
}, []string{LblSQLType})
SessionExecuteRunDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "execute_duration_seconds",
Help: "Bucketed histogram of processing time (s) in running executor.",
Buckets: prometheus.ExponentialBuckets(0.0001, 2, 30), // 100us ~ 15h
}, []string{LblSQLType})
SchemaLeaseErrorCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "schema_lease_error_total",
Help: "Counter of schema lease error",
}, []string{LblType})
SessionRetry = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "retry_num",
Help: "Bucketed histogram of session retry count.",
Buckets: prometheus.LinearBuckets(0, 1, 21), // 0 ~ 20
})
SessionRetryErrorCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "retry_error_total",
Help: "Counter of session retry error.",
}, []string{LblSQLType, LblType})
SessionRestrictedSQLCounter = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "restricted_sql_total",
Help: "Counter of internal restricted sql.",
})
StatementPerTransaction = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "transaction_statement_num",
Help: "Bucketed histogram of statements count in each transaction.",
Buckets: prometheus.ExponentialBuckets(1, 2, 16), // 1 ~ 32768
}, []string{LbTxnMode, LblType})
TransactionDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "transaction_duration_seconds",
Help: "Bucketed histogram of a transaction execution duration, including retry.",
Buckets: prometheus.ExponentialBuckets(0.001, 2, 28), // 1ms ~ 1.5days
}, []string{LbTxnMode, LblType})
StatementDeadlockDetectDuration = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "statement_deadlock_detect_duration_seconds",
Help: "Bucketed histogram of a statement deadlock detect duration.",
Buckets: prometheus.ExponentialBuckets(0.001, 2, 28), // 1ms ~ 1.5days
},
)
StatementPessimisticRetryCount = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "statement_pessimistic_retry_count",
Help: "Bucketed histogram of statement pessimistic retry count",
Buckets: prometheus.ExponentialBuckets(1, 2, 16), // 1 ~ 32768
})
StatementLockKeysCount = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "tidb",
Subsystem: "session",
Name: "statement_lock_keys_count",
Help: "Keys locking for a single statement",
Buckets: prometheus.ExponentialBuckets(1, 2, 21), // 1 ~ 1048576
})
)
// Label constants.
const (
LblUnretryable = "unretryable"
LblReachMax = "reach_max"
LblOK = "ok"
LblError = "error"
LblCommit = "commit"
LblAbort = "abort"
LblRollback = "rollback"
LblType = "type"
LblDb = "db"
LblResult = "result"
LblSQLType = "sql_type"
LblGeneral = "general"
LblInternal = "internal"
LbTxnMode = "txn_mode"
LblPessimistic = "pessimistic"
LblOptimistic = "optimistic"
LblStore = "store"
LblAddress = "address"
LblBatchGet = "batch_get"
LblGet = "get"
LblLockKeys = "lock_keys"
LblInTxn = "in_txn"
)