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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4328) Add the option to quiesce the JobTracker
Date Fri, 08 Jun 2012 07:20:23 GMT
Arun C Murthy created MAPREDUCE-4328:
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             Summary: 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


In several failure scenarios it would be very handy to have an option to quiesce the JobTracker.

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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