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https://issues.apache.org/jira/browse/HADOOP-2427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated HADOOP-2427:
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Attachment: patch-2427.txt
The patch modifies TaskTracker.TaskInProgress.cleanup() to take a boolean
parameter to know whether to delete the whole task directory or only the work
directory. For successful task attempts, the work directory is cleaned up as
soon as task is finished.
> Cleanup of mapred.local.dir after maptask is complete
> -----------------------------------------------------
>
> Key: HADOOP-2427
> URL: https://issues.apache.org/jira/browse/HADOOP-2427
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.15.1
> Reporter: lohit vijayarenu
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.18.0
>
> Attachments: patch-2427.txt, patch-2427.txt
>
>
> I see that after a map task is complete, its working directory
> (mapred.local.dir)/taskTracker/jobcache/<jobid>/<task_dir> is not deleted
> untill the job is complete. If map out files are stored in there, could this
> be created in different directory and the working directory cleaned up after
> map task is complete. One problem we are seeing is, if a map task creates
> files temporary files, they get accumulated and we may run out of disk space
> thus failing the job. Relying on the user to cleanup all temp files created
> is be error prone.
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