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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-179) task tracker ghosts remain after 10 minutes
Date Mon, 01 May 2006 18:40:46 GMT
task tracker ghosts remain after 10 minutes

         Key: HADOOP-179
         URL: http://issues.apache.org/jira/browse/HADOOP-179
     Project: Hadoop
        Type: Bug

  Components: mapred  
    Versions: 0.1.1    
    Reporter: Owen O'Malley
 Assigned to: Owen O'Malley 

I had a bunch of TaskTrackers time out because they were in the middle of job cleanup and
the JobTracker restarted them by responding to emitHeartbeat with UNKNOWN_TASKTRACKER. Afterwards,
I ended up with both the new and the restarted TaskTrackers on the list:

node1100_1234, 0-10 seconds since heartbeat
node1100_4321,  >10,000 seconds since heartbeat

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