[ http://issues.apache.org/jira/browse/HADOOP-133?page=all ]
Doug Cutting resolved HADOOP-133:
---------------------------------
Fix Version: 0.2
Resolution: Fixed
I just committed this. Thanks, Owen!
> the TaskTracker.Child.ping thread calls exit
> --------------------------------------------
>
> Key: HADOOP-133
> URL: http://issues.apache.org/jira/browse/HADOOP-133
> Project: Hadoop
> Type: Bug
> Components: mapred
> Versions: 0.1.1
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.2
> Attachments: ping-stability.patch
>
> The TaskTracker.Child.startPinging thread calls exit if the TaskTracker
> doesn't respond. Calling exit in a mutli-threaded program is really
> problematic. In particular, it prevents cleanup/finally clauses from running.
> We need to move to a model where it uses Thread.interrupt(), which means we
> need to check the interrupt flag in place in the map loop and reduce loop and
> stop masking the InterruptExceptions.
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