[jira] [Updated] (MAPREDUCE-4576) Large dist cache can block tasktracker heartbeat

["Robert Joseph Evans (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Joseph Evans updated MAPREDUCE-4576:
-------------------------------------------

    Attachment: MR-4576.txt

This patch changes the locking on CacheStatus.  I have not added in any new tests because it is a complicated bug, that is difficult to reproduce outside of a full cluster.  branch-1 seems to have a build issue so I have tested it against 1.0.2.  The commit tests pass, and the smoke tests are still running.  I will also verify that it fixes the issue manually once the other tests finish. 
                
> Large dist cache can block tasktracker heartbeat
> ------------------------------------------------
>
>                 Key: MAPREDUCE-4576
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4576
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.20.205.0, 1.0.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>         Attachments: MR-4576.txt
>
>


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