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Posted to mapreduce-dev@hadoop.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2009/10/14 08:57:31 UTC

[jira] Created: (MAPREDUCE-1109) ConcurrentModificationException in jobtracker.jsp

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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[jira] Reopened: (MAPREDUCE-1109) ConcurrentModificationException in jobtracker.jsp

Posted by "Chris Douglas (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MAPREDUCE-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Douglas reopened MAPREDUCE-1109:
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This still exists in 0.20, right? Sorry, I only mentioned MAPREDUCE-679 because this was fixed as a detour in that issue and the fix should either be backported or changed to match whatever approach is agreed on here.

> 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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[jira] Resolved: (MAPREDUCE-1109) ConcurrentModificationException in jobtracker.jsp

Posted by "dhruba borthakur (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MAPREDUCE-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

dhruba borthakur resolved MAPREDUCE-1109.
-----------------------------------------

    Resolution: Duplicate

duplicate of MAPREDUCE-679

> 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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