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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2010) RM can't transition to active if it can't recover an app attempt
Date Wed, 28 May 2014 17:41:03 GMT

    [ https://issues.apache.org/jira/browse/YARN-2010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14011362#comment-14011362
] 

Karthik Kambatla commented on YARN-2010:
----------------------------------------

I see. Thanks for the input. Let me check if that is indeed the case, and attempt recovering
the app even if the key is null

Regardless, do we agree that we still need to address the case where the app recovery fails
for potentially other reasons?

> RM can't transition to active if it can't recover an app attempt
> ----------------------------------------------------------------
>
>                 Key: YARN-2010
>                 URL: https://issues.apache.org/jira/browse/YARN-2010
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.3.0
>            Reporter: bc Wong
>            Assignee: Rohith
>            Priority: Critical
>         Attachments: YARN-2010.1.patch, YARN-2010.patch, yarn-2010-2.patch
>
>
> If the RM fails to recover an app attempt, it won't come up. We should make it more resilient.
> Specifically, the underlying error is that the app was submitted before Kerberos security
got turned on. Makes sense for the app to fail in this case. But YARN should still start.
> {noformat}
> 2014-04-11 11:56:37,216 WARN org.apache.hadoop.ha.ActiveStandbyElector: Exception handling
the winning of election 
> org.apache.hadoop.ha.ServiceFailedException: RM could not transition to Active 
> at org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeActive(EmbeddedElectorService.java:118)

> at org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:804)

> at org.apache.hadoop.ha.ActiveStandbyElector.processResult(ActiveStandbyElector.java:415)

> at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:599) 
> at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498) 
> Caused by: org.apache.hadoop.ha.ServiceFailedException: Error when transitioning to Active
mode 
> at org.apache.hadoop.yarn.server.resourcemanager.AdminService.transitionToActive(AdminService.java:274)

> at org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeActive(EmbeddedElectorService.java:116)

> ... 4 more 
> Caused by: org.apache.hadoop.service.ServiceStateException: org.apache.hadoop.yarn.exceptions.YarnException:
java.lang.IllegalArgumentException: Missing argument 
> at org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:59)

> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:204) 
> at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startActiveServices(ResourceManager.java:811)

> at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.transitionToActive(ResourceManager.java:842)

> at org.apache.hadoop.yarn.server.resourcemanager.AdminService.transitionToActive(AdminService.java:265)

> ... 5 more 
> Caused by: org.apache.hadoop.yarn.exceptions.YarnException: java.lang.IllegalArgumentException:
Missing argument 
> at org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recoverApplication(RMAppManager.java:372)

> at org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.submitApplication(RMAppManager.java:273)

> at org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recover(RMAppManager.java:406)

> at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.recover(ResourceManager.java:1000)

> at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStart(ResourceManager.java:462)

> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) 
> ... 8 more 
> Caused by: java.lang.IllegalArgumentException: Missing argument 
> at javax.crypto.spec.SecretKeySpec.<init>(SecretKeySpec.java:93) 
> at org.apache.hadoop.security.token.SecretManager.createSecretKey(SecretManager.java:188)

> at org.apache.hadoop.yarn.server.resourcemanager.security.ClientToAMTokenSecretManagerInRM.registerMasterKey(ClientToAMTokenSecretManagerInRM.java:49)

> at org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.recoverAppAttemptCredentials(RMAppAttemptImpl.java:711)

> at org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.recover(RMAppAttemptImpl.java:689)

> at org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.recover(RMAppImpl.java:663)

> at org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recoverApplication(RMAppManager.java:369)

> ... 13 more 
> {noformat}



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