[
https://issues.apache.org/jira/browse/HADOOP-2051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Arun C Murthy updated HADOOP-2051:
----------------------------------
Status: Patch Available (was: Open)
Submitting patch for review.
Thanks to Devaraj and Christian for their help on this one!
> JobTracker's TaskCommitQueue is vulnerable to non-IOExceptions
> --------------------------------------------------------------
>
> Key: HADOOP-2051
> URL: https://issues.apache.org/jira/browse/HADOOP-2051
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.15.0
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Priority: Blocker
> Fix For: 0.15.0
>
> Attachments: HADOOP-2051_1_20071013.patch
>
>
> The {{JobTracker#TaskCommitQueue#run}} method only handles {{IOException}}s.
> Christian Kunz ran into a scenario where a job was stuck with all tasks in
> {{COMMIT_PENDING}} state and the stack traces showed that the "Task Commit
> Thread" wasn't even around.
> The work-around is to model {{TaskCommitQueue#run}} along the lines of other
> long-running threads in the {{JobTracer}} ({{ExpireLaunchingTasks}},
> {{ExpireTrackers}} etc.) to catch, log and ignore any {{Exception}} in a loop.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
