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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4328) Add the option to quiesce the JobTracker
Date Mon, 27 Aug 2012 15:36:15 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arun C Murthy updated MAPREDUCE-4328:

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I just committed this after fixing the copy-paste error in the exception message. Thanks for
the review Vinod!
> Add the option to quiesce the JobTracker
> ----------------------------------------
>                 Key: MAPREDUCE-4328
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4328
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv1
>    Affects Versions: 1.0.3
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>             Fix For: 1.2.0
>         Attachments: MAPREDUCE-4328.patch, MAPREDUCE-4328.patch, TestJobTrackerQuiescence.java
> In several failure scenarios it would be very handy to have an option to quiesce the
> Recently, we saw a case where the NameNode had to be rebooted at a customer due to a
random hardware failure - in such a case it would have been nice to not lose jobs by quiescing
the JobTracker.

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