[ http://issues.apache.org/jira/browse/HADOOP-639?page=all ]
Arun C Murthy updated HADOOP-639:
---------------------------------
Attachment: HADOOP-639_2_20061130.patch
Makes sense Doug, here is the naming change to 'heartbeat'... appreciate your
feedback.
Meanwhile could you please hold off committing this patch till I do some
further testing on a large cluster (am currently blocked on HADOOP-753 /
HADOOP-754) ... once i get that done i'll give a heads-up. Meanwhile I'd love
to hear about any other comments/nits you have with any part of this patch...
thanks!
> task cleanup messages can get lost, causing task trackers to keep tasks
> forever
> -------------------------------------------------------------------------------
>
> Key: HADOOP-639
> URL: http://issues.apache.org/jira/browse/HADOOP-639
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.7.2
> Reporter: Owen O'Malley
> Assigned To: Arun C Murthy
> Fix For: 0.9.0
>
> Attachments: HADOOP-639_1.patch, HADOOP-639_2_20061130.patch
>
>
> If the pollForTaskWithClosedJob call from a job tracker to a task tracker
> times out when a job completes, the tasks are never cleaned up. This can
> cause the mini m/r cluster to hang on shutdown, but also is a resource leak.
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