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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1109) ConcurrentModificationException in jobtracker.jsp
Date Wed, 14 Oct 2009 06:57:31 GMT
ConcurrentModificationException in jobtracker.jsp
-------------------------------------------------

                 Key: MAPREDUCE-1109
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1109
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: jobtracker
    Affects Versions: 0.20.1
            Reporter: dhruba borthakur
            Assignee: dhruba borthakur


The jobtracker.jsp invoked methods tracker.runningJobs(), tracker.completedJobs() and tracker.failedJobs()
but these methods are not synchronized and can cause ConcurrentModificationException if the
JT is concurrently changing the contents of these datastructures.

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