Package com.cloudbees.jenkins.support.slowrequest

Class SlowRequestChecker

java.lang.Object

java.util.TimerTask

hudson.triggers.SafeTimerTask

hudson.model.PeriodicWork

com.cloudbees.jenkins.support.slowrequest.SlowRequestChecker

All Implemented Interfaces:

ExtensionPoint, Runnable

@Extension
public class SlowRequestChecker
extends PeriodicWork

Run periodically to find slow requests and track them.

Author:

Kohsuke Kawaguchi

Nested Class Summary

Nested classes/interfaces inherited from class hudson.triggers.SafeTimerTask

SafeTimerTask.ExceptionRunnable

Nested classes/interfaces inherited from interface hudson.ExtensionPoint

ExtensionPoint.LegacyInstancesAreScopedToHudson

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	DISABLED	Provide a means to disable the slow request checker.
static final int	RECURRENCE_PERIOD_SEC	How often to run the slow request checker
static final int	THRESHOLD	Time in milliseconds that's considered too slow for requests.

Fields inherited from class hudson.model.PeriodicWork

DAY, HOUR, logger, MIN

Constructor Summary

Constructors

Constructor	Description
SlowRequestChecker()

Method Summary

Modifier and Type	Method	Description
protected void	doRun()
long	getRecurrencePeriod()

Methods inherited from class hudson.model.PeriodicWork

all, getInitialDelay, init

Methods inherited from class hudson.triggers.SafeTimerTask

getLogsRoot, of, run

Methods inherited from class java.util.TimerTask

cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

RECURRENCE_PERIOD_SEC

public static final int RECURRENCE_PERIOD_SEC

How often to run the slow request checker

Since:

2.12

THRESHOLD

public static final int THRESHOLD

Time in milliseconds that's considered too slow for requests. Starting with a bit conservative value to catch serious offenders first. If this value is less than twice RECURRENCE_PERIOD_SEC then that will be used instead.

DISABLED

public static volatile boolean DISABLED

Provide a means to disable the slow request checker. This is a volatile non-final field as if you run into issues in a running Jenkins you may need to disable without restarting Jenkins.

Since:

2.12

Constructor Details

SlowRequestChecker

public SlowRequestChecker()

Method Details

getRecurrencePeriod

public long getRecurrencePeriod()

Specified by:

getRecurrencePeriod in class PeriodicWork

doRun

protected void doRun()
              throws Exception

Specified by:

doRun in class SafeTimerTask

Throws:

Exception