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https://issues.apache.org/jira/browse/YARN-3742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Templeton updated YARN-3742:
-----------------------------------
Attachment: YARN-3742.002.patch
Here's a patch that cleans up the handler a bit. If I move anything else out
of the handler, the code that creates the event is going to need to be up in
the RM's business to figure out what the right message is. It's cleaner and
saner to leave all that state checking to the handler at the expense of a
little extra logic.
> YARN RM will shut down if ZKClient creation times out
> -------------------------------------------------------
>
> Key: YARN-3742
> URL: https://issues.apache.org/jira/browse/YARN-3742
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.7.0
> Reporter: Wilfred Spiegelenburg
> Assignee: Daniel Templeton
> Attachments: YARN-3742.001.patch, YARN-3742.002.patch
>
>
> The RM goes down showing the following stacktrace if the ZK client connection
> fails to be created. We should not exit but transition to StandBy and stop
> doing things and let the other RM take over.
> {code}
> 2015-04-19 01:22:20,513 FATAL
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Received a
> org.apache.hadoop.yarn.server.resourcemanager.RMFatalEvent of type
> STATE_STORE_OP_FAILED. Cause:
> java.io.IOException: Wait for ZKClient creation timed out
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithCheck(ZKRMStateStore.java:1066)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithRetries(ZKRMStateStore.java:1090)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.existsWithRetries(ZKRMStateStore.java:996)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.updateApplicationStateInternal(ZKRMStateStore.java:643)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$UpdateAppTransition.transition(RMStateStore.java:162)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$UpdateAppTransition.transition(RMStateStore.java:147)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.handleStoreEvent(RMStateStore.java:806)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:879)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:874)
> at
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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