org.apache.flink.runtime.util

Class ProcessShutDownThread

java.lang.Object

java.lang.Thread

org.apache.flink.runtime.util.ProcessShutDownThread

All Implemented Interfaces:

Runnable

public class ProcessShutDownThread
extends Thread

JVM shut down thread awaiting actor system shut down for a certain amount of time before exiting the JVM.

On some Linux distributions, YARN is not able to stop containers, because the kill command has different arguments. For example when running Flink on GCE ("Debian GNU/Linux 7.9 (wheezy)"), YARN containers will not properly shut down when we don't call System.exit().

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
ProcessShutDownThread(org.slf4j.Logger log, akka.actor.ActorSystem actorSystem, scala.concurrent.duration.Duration terminationTimeout) Creates a shut down thread.

Method Summary

Modifier and Type	Method and Description
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessShutDownThread

public ProcessShutDownThread(org.slf4j.Logger log,
                             akka.actor.ActorSystem actorSystem,
                             scala.concurrent.duration.Duration terminationTimeout)

Creates a shut down thread.

Parameters:

log - Log of the corresponding YARN process.

actorSystem - Actor system to await termination of.

terminationTimeout - Actor system termination timeout before shutting down the JVM.

Method Detail

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread