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https://issues.apache.org/jira/browse/MAPREDUCE-871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod K V updated MAPREDUCE-871:
--------------------------------
Release Note: Fixed LinuxTaskController binary so that permissions of local
files on TT are set correctly: user owned by the job-owner and group-owned by
the group owner of the binary and _not_ the primary group of the TaskTracker.
> Job/Task local files have incorrect group ownership set by
> LinuxTaskController binary
> -------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-871
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-871
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: tasktracker
> Reporter: Vinod K V
> Assignee: Vinod K V
> Fix For: 0.21.0
>
> Attachments: MAPREDUCE-871-20090820.1.txt
>
>
> HADOOP-4491 fixed the secure permissions of local files on a TT. While
> testing HADOOP-4491 on a cluster, [~karams] found out a bug. All the
> files/dirs have should be owned by the group corresponding to the group owner
> of the task-controller binary (via using getegid()) which in turn is a
> special group to which *only* TT user belongs. HADOOP-4491 incorrectly set it
> to primary group of the TT via getgid(), and not the special group.
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