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From "Santhosh Srinivasan (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3028) Support job end notification in .next /0.23
Date Fri, 21 Oct 2011 16:06:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13132774#comment-13132774
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Santhosh Srinivasan commented on MAPREDUCE-3028:
------------------------------------------------

bq. With respect to the multiple urls, the only concern is that its not backwards compatible.
Are Oozie folks ok with that?

The support for multiple URLs should NOT require changes to the existing mechanism. As long
as the current configuration works as it stands today, Oozie should be fine with any other
enhancements. 
                
> Support job end notification in .next /0.23
> -------------------------------------------
>
>                 Key: MAPREDUCE-3028
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3028
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Mohammad Kamrul Islam
>            Assignee: Ravi Prakash
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-3028.branch-0.23.patch, MAPREDUCE-3028.patch, MAPREDUCE-3028.patch
>
>
> Oozie primarily depends on  the job end notification to determine when the job finishes.
In the current version,  job end notification is implemented in job tracker. Since job tracker
will be removed in the upcoming hadoop release (.next), we wander where this support will
move. I think this best effort notification could be implemented in the new Application Manager
as one of the last step of job completion.
> Whatever implementation will it be, Oozie badly needs this feature to be continued in
next releases as well.
>  

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