[jira] [Resolved] (MAPREDUCE-1688) A failing retry'able notification in JobEndNotifier can affect notifications of other jobs.

["Ravi Prakash (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ravi Prakash resolved MAPREDUCE-1688.
-------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.23.1
         Assignee: Ravi Prakash

This has been fixed by MAPREDUCE-3028. Since each AM is now doing the job-end notification, it has automatically been parallelized. Also, timeouts have been set in the HttpURLConnection object.
                
> A failing retry'able notification in JobEndNotifier can affect notifications of other jobs.
> -------------------------------------------------------------------------------------------
>
>                 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 Kumar Vavilapalli
>            Assignee: Ravi Prakash
>             Fix For: 0.23.1
>
>
> 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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