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https://issues.apache.org/jira/browse/YARN-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jian He updated YARN-2219:
--------------------------
Attachment: YARN-2219.1.patch
The problem is that scheduler application/attempt may not be created when app
re-registers.
Patch to add scheduler application/attempt synchronously on recovery.
Also changed to not send duplicate AppAccepted event on recovery.
> TestWorkPreservingRMRestart fails intermittently on trunk
> ---------------------------------------------------------
>
> Key: YARN-2219
> URL: https://issues.apache.org/jira/browse/YARN-2219
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Ashwin Shankar
> Assignee: Jian He
> Attachments: YARN-2219.1.patch
>
>
> {code}
> org.apache.hadoop.yarn.server.resourcemanager.TestWorkPreservingRMRestart
> testAppReregisterOnRMWorkPreservingRestart[0](org.apache.hadoop.yarn.server.resourcemanager.TestWorkPreservingRMRestart)
> Time elapsed: 4.335 sec <<< ERROR!
> java.lang.NullPointerException: null
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.getTransferredContainers(AbstractYarnScheduler.java:91)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService.registerApplicationMaster(ApplicationMasterService.java:297)
> at
> org.apache.hadoop.yarn.server.resourcemanager.MockAM$1.run(MockAM.java:113)
> at
> org.apache.hadoop.yarn.server.resourcemanager.MockAM$1.run(MockAM.java:110)
> 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:1626)
> at
> org.apache.hadoop.yarn.server.resourcemanager.MockAM.registerAppAttempt(MockAM.java:109)
> at
> org.apache.hadoop.yarn.server.resourcemanager.TestWorkPreservingRMRestart.testAppReregisterOnRMWorkPreservingRestart(TestWorkPreservingRMRestart.java:562)
> {code}
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