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From "Mohammad Kamrul Islam (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3028) Support job end notification in .next /0.23
Date Sun, 23 Oct 2011 04:57:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133576#comment-13133576

Mohammad Kamrul Islam commented on MAPREDUCE-3028:

We use the property name "job.end.notification.url" for specifying the URL.

In one patch, I could see a property named mapreduce.job.end-notification.urls. Is it the
replacement of the existing one ("job.end.notification.url")? Or, this is a new property for
different purpose while the existing one will be supported as well.

The code snippets of a patch...

public static final String MR_JOB_END_NOTIFICATION_URLS = "mapreduce.job.end-notification.urls";
> 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, 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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