package expensivequery

import "github.com/pingcap/tidb/util/expensivequery"

Index ¶

• type Handle
• func NewExpensiveQueryHandle(exitCh chan struct{}) *Handle
• func (eqh *Handle) LogOnQueryExceedMemQuota(connID uint64)
• func (eqh *Handle) Run()
• func (eqh *Handle) SetSessionManager(sm util.SessionManager) *Handle

Package Files ¶

expensivequery.go memory_usage_alarm.go

type Handle ¶ Uses

type Handle struct {
    // contains filtered or unexported fields
}

Handle is the handler for expensive query.

func NewExpensiveQueryHandle ¶ Uses

func NewExpensiveQueryHandle(exitCh chan struct{}) *Handle

NewExpensiveQueryHandle builds a new expensive query handler.

func (*Handle) LogOnQueryExceedMemQuota ¶ Uses

func (eqh *Handle) LogOnQueryExceedMemQuota(connID uint64)

LogOnQueryExceedMemQuota prints a log when memory usage of connID is out of memory quota.

func (*Handle) Run ¶ Uses

func (eqh *Handle) Run()

Run starts a expensive query checker goroutine at the start time of the server.

func (*Handle) SetSessionManager ¶ Uses

func (eqh *Handle) SetSessionManager(sm util.SessionManager) *Handle

SetSessionManager sets the SessionManager which is used to fetching the info of all active sessions.