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Posted to mapreduce-issues@hadoop.apache.org by "Ramkumar Vadali (JIRA)" <ji...@apache.org> on 2011/02/11 18:57:59 UTC

[jira] Created: (MAPREDUCE-2320) RAID DistBlockFixer should limit pending jobs instead of pending files

RAID DistBlockFixer should limit pending jobs instead of pending files
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                 Key: MAPREDUCE-2320
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2320
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Ramkumar Vadali
            Assignee: Ramkumar Vadali
            Priority: Minor


DistBlockFixer limits the number of files being fixed simultaneously to avoid an unlimited backlog. This limits the number of parallel jobs though, and if one job has a long running task, it prevents newer jobs being started. Instead, it should have a limit on running jobs. That way, one long running task will not block other jobs.

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