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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2010) If RM fails to recover an app, it can never transition to active again
Date Thu, 23 Oct 2014 23:03:36 GMT

    [ https://issues.apache.org/jira/browse/YARN-2010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182135#comment-14182135
] 

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

[~jianhe] - can you please verify the changes to TestWorkPreservingRMRestart are reasonable.


> If RM fails to recover an app, it can never transition to active again
> ----------------------------------------------------------------------
>
>                 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: Karthik Kambatla
>            Priority: Critical
>         Attachments: YARN-2010.1.patch, YARN-2010.patch, issue-stacktrace.rtf, yarn-2010-2.patch,
yarn-2010-3.patch, yarn-2010-3.patch, yarn-2010-4.patch, yarn-2010-5.patch
>
>
> Sometimes, the RM fails to recover an application. It could be because of turning security
on, token expiry, or issues connecting to HDFS etc. The causes could be classified into (1)
transient, (2) specific to one application, and (3) permanent and apply to multiple (all)
applications. Today, the RM fails to transition to Active and ends up in STOPPED state and
can never be transitioned to Active again.
> The initial stacktrace reported is at https://issues.apache.org/jira/secure/attachment/12676476/issue-stacktrace.rtf



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