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From "Arun C Murthy (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3028) Support job end notification in .next /0.23
Date Sat, 22 Oct 2011 22:44:32 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-3028:
-------------------------------------

    Status: Open  (was: Patch Available)

Ravi, the patch looks good.

Some nits:
# Please use a consistent coding style from Hadoop.
# No need for configuring sentinels, we can just $jobId, $jobStatus similar to 0.20
# Don't do 'null checks' for success/fail as in notifyUrlOnce, just return boolean.
# Use setConf rather than parseConf.
                
> 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,
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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