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https://issues.apache.org/jira/browse/YARN-3614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14537640#comment-14537640
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lachisis commented on YARN-3614:
--------------------------------
I used HA of yarn for stable service.
Months later, I find when standby resourcemanager try to transitiontoActiver,
it will cost more than ten minutes to load applications. So I backup the
rmstore in hdfs and change the configure
"yarn.resourcemanager.state-store.max-completed-applications" to limit
applications number in rmstroe. And find it work well when transition.
Later my partner restore backuped rmstore, and submitted a new application,
then find resoucemanager cashed.
I know restoring backuped rmstore when resourcemanager running is not suitable.
But this also means the processing logic of FileSystemRMStateStore is weak a
liitle. So I suggest a little change here.
> FileSystemRMStateStore throw exception when failed to remove application,
> that cause resourcemanager to crash
> -------------------------------------------------------------------------------------------------------------
>
> Key: YARN-3614
> URL: https://issues.apache.org/jira/browse/YARN-3614
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.5.0
> Reporter: lachisis
> Priority: Critical
>
> FileSystemRMStateStore is only a accessorial plug-in of rmstore.
> When it failed to remove application, I think warning is enough, but now
> resourcemanager crashed.
> Recently, I configure
> "yarn.resourcemanager.state-store.max-completed-applications" to limit
> applications number in rmstore. when applications number exceed the limit,
> some old applications will be removed. If failed to remove, resourcemanager
> will crash.
> The following is log:
> 2015-05-11 06:58:43,815 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> info for app: application_1430994493305_0053
> 2015-05-11 06:58:43,815 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing info for app: application_1430994493305_0053 at:
> /hadoop/rmstore/FSRMStateRoot/RMAppRoot/application_1430994493305_0053
> 2015-05-11 06:58:43,816 ERROR
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Error
> removing app: application_1430994493305_0053
> java.lang.Exception: Failed to delete
> /hadoop/rmstore/FSRMStateRoot/RMAppRoot/application_1430994493305_0053
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore.deleteFile(FileSystemRMStateStore.java:572)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore.removeApplicationStateInternal(FileSystemRMStateStore.java:471)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$RemoveAppTransition.transition(RMStateStore.java:185)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$RemoveAppTransition.transition(RMStateStore.java:171)
> 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$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:745)
> 2015-05-11 06:58:43,819 FATAL
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Received a
> org.apache.hadoop.yarn.server.resourcemanager.RMFatalEvent of type
> STATE_STORE_OP_FAILED. Cause:
> java.lang.Exception: Failed to delete
> /hadoop/rmstore/FSRMStateRoot/RMAppRoot/application_1430994493305_0053
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore.deleteFile(FileSystemRMStateStore.java:572)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore.removeApplicationStateInternal(FileSystemRMStateStore.java:471)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$RemoveAppTransition.transition(RMStateStore.java:185)
> at
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$RemoveAppTransition.transition(RMStateStore.java:171)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$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)
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