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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1688) A failing retry'able notification in JobEndNotifier can affect notifications of other jobs.
Date Fri, 09 Apr 2010 17:57:50 GMT
A failing retry'able notification in JobEndNotifier can affect notifications of other jobs.
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                 Key: MAPREDUCE-1688
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1688
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: jobtracker
    Affects Versions: 0.20.1
            Reporter: Vinod K V


The JobTracker puts all the notification commands into a delay-queue.  It has a single thread
that loops through this queue and sends out the notifications.  When it hits failures with
any notification which is configured to be retired via {{job.end.retry.attempts}} and {{job.end.retry.interval}},
the notification is queued back again. A single notification with sufficiently large number
of configured retries and which consistently fails will affect other notifications in the
queue.

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