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

This commit is contained in:
Jian He 2014-12-11 11:16:45 -08:00
parent 8e9a266819
commit 614b6afea4
2 changed files with 16 additions and 2 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -214,6 +214,9 @@ Release 2.7.0 - UNRELEASED
YARN-2924. Fixed RMAdminCLI to not convert node labels to lower case. YARN-2924. Fixed RMAdminCLI to not convert node labels to lower case.
(Wangda Tan via jianhe) (Wangda Tan via jianhe)
YARN-2917. Fixed potential deadlock when system.exit is called in AsyncDispatcher
(Rohith Sharmaks via jianhe)
Release 2.6.0 - 2014-11-18 Release 2.6.0 - 2014-11-18
INCOMPATIBLE CHANGES 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 @@ public class AsyncDispatcher extends AbstractService implements Dispatcher {
if (exitOnDispatchException if (exitOnDispatchException
&& (ShutdownHookManager.get().isShutdownInProgress()) == false && (ShutdownHookManager.get().isShutdownInProgress()) == false
&& stopped == false) { && stopped == false) {
LOG.info("Exiting, bbye.."); Thread shutDownThread = new Thread(createShutDownThread());
System.exit(-1); shutDownThread.setName("AsyncDispatcher ShutDown handler");
shutDownThread.start();
} }
} }
} }
@ -271,4 +272,14 @@ public class AsyncDispatcher extends AbstractService implements Dispatcher {
} }
} }
Runnable createShutDownThread() {
return new Runnable() {
@Override
public void run() {
LOG.info("Exiting, bbye..");
System.exit(-1);
}
};
}
} }