You are viewing a plain text version of this content. The canonical link for it is here.

Posted to mapreduce-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2010/02/04 01:29:27 UTC

[jira] Created: (MAPREDUCE-1451) Minor lock inversions in capacity scheduler

Minor lock inversions in capacity scheduler
-------------------------------------------

                 Key: MAPREDUCE-1451
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1451
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: contrib/capacity-sched
    Affects Versions: 0.22.0
            Reporter: Todd Lipcon
         Attachments: capacity-lock-inversion-2.png, capacity-lock-inversion-3.png, capacity-lock-inversion.png

Running jcarder on the contrib unit tests yielded 3 lock inversions in the capacity scheduler. I don't know enough about the scheduler to know if they're problems - they look harmless enough since they seem to all be concerned with the startup code, which probably doesn't run concurrently with other stuff. Attaching the images of the cycles here.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.