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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (MAPREDUCE-5418) JobHistoryServer has no information about applications if the MR-AM crashes
Date Mon, 07 Jul 2014 18:08:34 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla reopened MAPREDUCE-5418:
-----------------------------------------


> JobHistoryServer has no information about applications if the MR-AM crashes
> ---------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5418
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5418
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobhistoryserver, mr-am
>    Affects Versions: 2.0.5-alpha
>            Reporter: Karthik Kambatla
>            Assignee: Robert Kanter
>            Priority: Critical
>         Attachments: JHS-web-ui.png, RM-web-ui.png
>
>
> Currently, the AM writes the job-specific information to HDFS only after it finishes;
the JHS needs this info to display anything. If the AM fails, this info is not written and
the JHS fails to display anything for that job.
> While JHS on top of AHS might address this issue, it would be nice to have a solution
in the interim. 



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