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From "Chang Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6277) Job can post multiple history files if attempt loses connection to the RM
Date Wed, 18 Mar 2015 19:36:39 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14367741#comment-14367741

Chang Li commented on MAPREDUCE-6277:

Thanks [~jlowe] for quick review!

> Job can post multiple history files if attempt loses connection to the RM
> -------------------------------------------------------------------------
>                 Key: MAPREDUCE-6277
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6277
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mr-am
>    Affects Versions: 2.7.0
>            Reporter: Chang Li
>            Assignee: Chang Li
>             Fix For: 2.7.0
>         Attachments: MAPREDUCE-6277.2.patch, MAPREDUCE-6277.patch, YARN-3335.1.patch,
> Related to a fixed issue MAPREDUCE-6230 which cause a Job to get into error state. In
that situation Job's second or some later attempt could succeed but those later attempts'
history file will all be lost. Because the first attempt in error state will copy its history
file to intermediate dir while mistakenly think of itself as lastattempt. Jobhistory server
will later move the history file of that error attempt from intermediate dir to done dir while
ignore the rest of that job attempt's later history files in intermediate dir.  

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