hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-600) Race condition in JobTracker updating the task tracker's status while declaring it lost
Date Thu, 12 Oct 2006 16:50:37 GMT
Race condition in JobTracker updating the task tracker's status while declaring it lost
---------------------------------------------------------------------------------------

                 Key: HADOOP-600
                 URL: http://issues.apache.org/jira/browse/HADOOP-600
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.7.1
            Reporter: Owen O'Malley
         Assigned To: Owen O'Malley
             Fix For: 0.8.0


There was a case where the JobTracker lost track of a set of tasks that were on a task tracker.
It appears to be a race condition because the ExpireTrackers thread doesn't lock the JobTracker
while updating the state. The fix would be to build a list of dead task trackers and then
lock the job tracker while updating their status.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message