Package org.elasticsearch.test.disruption

Class LongGCDisruption

java.lang.Object

org.elasticsearch.test.disruption.SingleNodeDisruption

org.elasticsearch.test.disruption.LongGCDisruption

All Implemented Interfaces:

ServiceDisruptionScheme

Direct Known Subclasses:

IntermittentLongGCDisruption

public class LongGCDisruption
extends SingleNodeDisruption

Suspends all threads on the specified node in order to simulate a long gc.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.String	disruptedNode

Fields inherited from class org.elasticsearch.test.disruption.SingleNodeDisruption

cluster, logger, random

Constructor Summary

Constructors

Constructor	Description
LongGCDisruption(java.util.Random random, java.lang.String disruptedNode)

Method Summary

Modifier and Type	Method	Description
TimeValue	expectedTimeToHeal()
protected long	getBlockDetectionIntervalInMillis()
protected long	getSuspendingTimeoutInMillis()
protected java.util.regex.Pattern[]	getUnsafeClasses()
boolean	isBlockDetectionSupported()
boolean	isDisruptedNodeThread(java.lang.String threadName)
protected void	onBlockDetected(java.lang.management.ThreadInfo blockedThread, java.lang.management.ThreadInfo blockingThread)
void	removeAndEnsureHealthy(InternalTestCluster cluster)
protected void	resumeThreads(java.util.Set<java.lang.Thread> threads)
void	startDisrupting()
void	stopDisrupting()
protected boolean	suspendThreads(java.util.Set<java.lang.Thread> nodeThreads)	resolves all threads belonging to given node and suspends them if their current stack trace is "safe".

Methods inherited from class org.elasticsearch.test.disruption.SingleNodeDisruption

applyToCluster, applyToNode, ensureNodeCount, removeFromCluster, removeFromNode, testClusterClosed

Methods inherited from class java.lang.Object

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

Field Detail

disruptedNode

protected final java.lang.String disruptedNode

Constructor Detail

LongGCDisruption

public LongGCDisruption(java.util.Random random,
                        java.lang.String disruptedNode)

Method Detail

startDisrupting

public void startDisrupting()

isDisruptedNodeThread

public boolean isDisruptedNodeThread(java.lang.String threadName)

stopDisrupting

public void stopDisrupting()

removeAndEnsureHealthy

public void removeAndEnsureHealthy(InternalTestCluster cluster)

expectedTimeToHeal

public TimeValue expectedTimeToHeal()

suspendThreads

protected boolean suspendThreads(java.util.Set<java.lang.Thread> nodeThreads)

resolves all threads belonging to given node and suspends them if their current stack trace is "safe". Threads are added to nodeThreads if suspended. returns true if some live threads were found. The caller is expected to call this method until no more "live" are found.

getUnsafeClasses

protected java.util.regex.Pattern[] getUnsafeClasses()

getSuspendingTimeoutInMillis

protected long getSuspendingTimeoutInMillis()

isBlockDetectionSupported

public boolean isBlockDetectionSupported()

getBlockDetectionIntervalInMillis

protected long getBlockDetectionIntervalInMillis()

onBlockDetected

protected void onBlockDetected(java.lang.management.ThreadInfo blockedThread,
                               @Nullable
                               java.lang.management.ThreadInfo blockingThread)

resumeThreads

protected void resumeThreads(java.util.Set<java.lang.Thread> threads)