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YARN-2917. Fixed potential deadlock when system.exit is called in AsyncDispatcher. Contributed by Rohith Sharmaks

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(cherry picked from commit 614b6afea450ebb897fbb2519c6f02e13b9bd12d)

(cherry picked from commit 41f0d20fcb4fec5b932b8947a44f93345205222c)
(cherry picked from commit aa4f8184ee7aa1817a9b23b3b4e7e78da95dc031)
This commit is contained in:
Jian He 2014-12-11 11:16:45 -08:00 committed by Vinod Kumar Vavilapalli
parent 6e954bc25c
commit 3d5627b563
2 changed files with 16 additions and 2 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -42,6 +42,9 @@ Release 2.6.1 - UNRELEASED
YARN-2910. FSLeafQueue can throw ConcurrentModificationException.
(Wilfred Spiegelenburg via kasha)
YARN-2917. Fixed potential deadlock when system.exit is called in AsyncDispatcher
(Rohith Sharmaks via jianhe)
Release 2.6.0 - 2014-11-18
INCOMPATIBLE CHANGES

15
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/event/AsyncDispatcher.java
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@ -181,8 +181,9 @@ protected void dispatch(Event event) {
if (exitOnDispatchException
&& (ShutdownHookManager.get().isShutdownInProgress()) == false
&& stopped == false) {
LOG.info("Exiting, bbye..");
System.exit(-1);
Thread shutDownThread = new Thread(createShutDownThread());
shutDownThread.setName("AsyncDispatcher ShutDown handler");
shutDownThread.start();
}
}
}
@ -271,4 +272,14 @@ void addHandler(EventHandler<Event> handler) {
}
}
Runnable createShutDownThread() {
return new Runnable() {
@Override
public void run() {
LOG.info("Exiting, bbye..");
System.exit(-1);
}
};
}
}