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https://issues.apache.org/jira/browse/MAPREDUCE-5471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13746915#comment-13746915
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Bikas Saha commented on MAPREDUCE-5471:
---------------------------------------
Even storing a persistent flag is not enough since RM may fail before storing
the flag. As Jason says, the best solution is for MR AM to handle the case.
Other solution is work preserving restart.
> Succeed job tries to restart after RMrestart
> --------------------------------------------
>
> Key: MAPREDUCE-5471
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5471
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: yeshavora
> Assignee: Jian He
> Priority: Blocker
>
> Run a job , restart RM when job just finished. It should not restart the job
> once it Succeed.
> After RM restart, The AM of restarted job fails with below error.
> AM log after Rmrestart:
> 013-08-19 17:29:21,144 INFO [main]
> org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Stopping
> JobHistoryEventHandler. Size of the outstanding queue size is 0
> 2013-08-19 17:29:21,145 INFO [main]
> org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Stopped
> JobHistoryEventHandler. super.stop()
> 2013-08-19 17:29:21,146 INFO [main]
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Deleting staging directory
> hdfs://host1:port1/user/ABC/.staging/job_1376933101704_0001
> 2013-08-19 17:29:21,156 FATAL [main]
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Error starting MRAppMaster
> org.apache.hadoop.yarn.exceptions.YarnRuntimeException:
> java.io.FileNotFoundException: File does not exist:
> hdfs://host1:port1/ABC/.staging/job_1376933101704_0001/job.splitmetainfo
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$InitTransition.createSplits(JobImpl.java:1469)
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$InitTransition.transition(JobImpl.java:1324)
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$InitTransition.transition(JobImpl.java:1291)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
> 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.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:922)
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:131)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobEventDispatcher.handle(MRAppMaster.java:1184)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.serviceStart(MRAppMaster.java:995)
> at
> org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster$1.run(MRAppMaster.java:1394)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1477)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.initAndStartAppMaster(MRAppMaster.java:1390)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.main(MRAppMaster.java:1323)
> Caused by: java.io.FileNotFoundException: File does not exist:
> hdfs://host1:port1/ABC/.staging/job_1376933101704_0001/job.splitmetainfo
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1121)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1113)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:78)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1113)
> at
> org.apache.hadoop.mapreduce.split.SplitMetaInfoReader.readSplitMetaInfo(SplitMetaInfoReader.java:51)
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$InitTransition.createSplits(JobImpl.java:1464)
> ... 17 more
> 2013-08-19 17:29:21,158 INFO [Thread-2]
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster: MRAppMaster received a
> signal. Signaling RMCommunicator and JobHistoryEventHandler.
> 2013-08-19 17:29:21,159 WARN [Thread-2]
> org.apache.hadoop.util.ShutdownHookManager: ShutdownHook
> 'MRAppMasterShutdownHook' failed, java.lang.NullPointerException
> java.lang.NullPointerException
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster$ContainerAllocatorRouter.setSignalled(MRAppMaster.java:805)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster$MRAppMasterShutdownHook.run(MRAppMaster.java:1344)
> at
> org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54)
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