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Vinod K V commented on HADOOP-5761: ----------------------------------- Todd and Lance, Which version of Hadoop are you using? HADOOP-5374 is fixed in 0.19.2 and above, which I think addresses the same issue that you are mentioning. Or is the problem that you are facing different from HADOOP-5374? > JobTracker and TaskTracker enter infinite loop when TaskTracker reports bad > taskid > ---------------------------------------------------------------------------------- > > Key: HADOOP-5761 > URL: https://issues.apache.org/jira/browse/HADOOP-5761 > Project: Hadoop Core > Issue Type: Bug > Components: mapred > Reporter: Todd Lipcon > > If the TaskTracker somehow gets into a state where it has a task in > COMMIT_PENDING state that the JobTracker does not know about, the JobTracker > will throw NPEs while processing heartbeats. Due to HADOOP-3987, this causes > the JT and TT to enter an infinite heartbeat loop with no delays, and the TT > fails to make progress. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.