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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4190) Changes to JobHistory makes it backward incompatible
Date Tue, 23 Sep 2008 10:13:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12633671#action_12633671
] 

Amar Kamat commented on HADOOP-4190:
------------------------------------

Result of test-patch on branch-19
{noformat}
     [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.
{noformat}
Running ant-test.

> Changes to JobHistory makes it backward incompatible
> ----------------------------------------------------
>
>                 Key: HADOOP-4190
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4190
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>            Priority: Blocker
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-4190-v3.patch, HADOOP-4190-v4.patch, HADOOP-4190-v5.patch
>
>
> With HADOOP-3245, the job history format has changed. Every log line now ends with a
'.' (dot). JobHistory's parser will consider a history line valid only if it ends in a dot
> Hence the new parser wont be able to parse old history files.

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