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https://issues.apache.org/jira/browse/YARN-6847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16094098#comment-16094098
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Rohith Sharma K S commented on YARN-6847:
-----------------------------------------
[~varun_saxena] thanks for the creating this issue. I was noticed this issue
while preparing patch for YARN-6102. And I have taken care moving timeline
collector into global service context from active service context. And also
YARN-6102 does little bit refactoring RMContextImpl.
May be we can keep this issue till YARN-6102 committed.
> [ATSv2] NPE in RM while starting timeline collector on recovery after
> explicit failover
> ---------------------------------------------------------------------------------------
>
> Key: YARN-6847
> URL: https://issues.apache.org/jira/browse/YARN-6847
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Varun Saxena
>
> {noformat}
> 2017-07-20 03:20:50,742 ERROR [Thread-449] resourcemanager.ResourceManager
> (ResourceManager.java:serviceStart(763)) - Failed to load/recover state
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.startTimelineCollector(RMAppImpl.java:535)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.createAndPopulateNewRMApp(RMAppManager.java:467)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recoverApplication(RMAppManager.java:336)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recover(RMAppManager.java:576)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.recover(ResourceManager.java:1419)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStart(ResourceManager.java:758)
> at
> org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startActiveServices(ResourceManager.java:1178)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1218)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1214)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1965)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.transitionToActive(ResourceManager.java:1214)
> at
> org.apache.hadoop.yarn.server.resourcemanager.AdminService.transitionToActive(AdminService.java:319)
> at
> org.apache.hadoop.yarn.client.ProtocolHATestBase.explicitFailover(ProtocolHATestBase.java:205)
> at
> org.apache.hadoop.yarn.client.ProtocolHATestBase$1.run(ProtocolHATestBase.java:250)
> {noformat}
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