[ http://issues.apache.org/jira/browse/HADOOP-160?page=all ]
Owen O'Malley updated HADOOP-160:
---------------------------------
Attachment: task-tracker-unlocked-finish.patch
This patch removes the locking of the TaskTracker while the thread sleeps to
wait for completion of the task in TaskTracker.taskFinished. It also moves
startNewTask to just lock the tip instead of the TaskTracker while the new task
is launched.
> sleeping with locks held
> ------------------------
>
> Key: HADOOP-160
> URL: http://issues.apache.org/jira/browse/HADOOP-160
> Project: Hadoop
> Type: Bug
> Versions: 0.1.1
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.2
> Attachments: task-tracker-unlocked-finish.patch
>
> I ran findbugs and it reported 7 cases of sleeping with locks held. Part of
> what is killing jobs is unreasonably slow responses from the servers (and
> task tracker in particular), and this may be contributing to that.
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