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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4372) Improve the way the job history files are managed during job recovery
Date Wed, 15 Apr 2009 12:45:15 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat updated HADOOP-4372:
-------------------------------

    Attachment: HADOOP-4372-v1.4.patch

Result of test-patch
{code}
[exec] +1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 6 new or modified tests.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec] 
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.
{code}

Ant tests passed on my box.

> Improve the way the job history files are managed during job recovery
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-4372
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4372
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>         Attachments: HADOOP-4372-v1.4.patch, HADOOP-4372-v1.patch
>
>
> Today we use the _.recover_ technique to handle the job history files when the jobtracker
restarts. The comment [here|https://issues.apache.org/jira/browse/HADOOP-3245?focusedCommentId=12629080#action_12629080]
proposes a better way to handle the files. 

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