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https://issues.apache.org/jira/browse/MAPREDUCE-896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hemanth Yamijala updated MAPREDUCE-896:
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Attachment: MR-896.v8.patch
I reviewed the latest patch from Ravi and am fine with the changes except that
there was no need for the accessors for cleanup queue in tasktracker to be
public. The new patch makes them package private. I ran tests locally and they
passed. So, trying hudson.
> Users can set non-writable permissions on temporary files for TT and can
> abuse disk usage.
> ------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-896
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-896
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.21.0
> Reporter: Vinod K V
> Assignee: Ravi Gummadi
> Fix For: 0.21.0
>
> Attachments: MR-896.patch, MR-896.v1.patch, MR-896.v2.patch,
> MR-896.v3.patch, MR-896.v4.patch, MR-896.v5.patch, MR-896.v6.patch,
> MR-896.v7.patch, MR-896.v8.patch, y896.v1.patch, y896.v2.1.fix.patch,
> y896.v2.1.fix.v1.patch, y896.v2.1.fix.v2.patch, y896.v2.1.patch, y896.v2.patch
>
>
> As of now, irrespective of the TaskController in use, TT itself does a full
> delete on local files created by itself or job tasks. This step, depending
> upon TT's umask and the permissions set by files by the user, for e.g in
> job-work/task-work or child.tmp directories, may or may not go through
> successful completion fully. Thus is left an opportunity for abusing disk
> space usage either accidentally or intentionally by TT/users.
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