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https://issues.apache.org/jira/browse/MAPREDUCE-890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravi Gummadi updated MAPREDUCE-890:
-----------------------------------
Attachment: MR890.patch
Attaching patch fixing the issue.
Patch does the following:
(1) When localizing userDir, in intialize_user(), we do "chmod 2770 -R
taskTracker/$user" for tt_user(i.e. if jobOwner is same as tt_user) and "chmod
2570 -R taskTracker/$user" otherwise.
(2) Similarly,
(a) "chmod 2770 -R taskTracker/$user/jobcache/$jobid" for tt_user and "chmod
2570 -R taskTracker/$user/jobcache/$jobid" otherwise.
(b) "chmod 2770 -R taskTracker/$user/distcache/<randomdir>" for tt_user and
"chmod 2570 -R taskTracker/$user/distcache/<randomdir>" otherwise.
(3) compare_ownership() check was done in secure_path() sothat setting of
permissions for distributed-cache files(for which permissions are already set
earlier) will not go through chown and chmod again and again. This check is not
needed after MAPREDUCE-1186(which is already committed to trunk). So deleted
this check from secure_path().
(4) Modified TestLocalizationWithLinuxTaskController sothat validation of
permissions of different files/directories will work properly in the cases of
(a) jobOwner is tt_user and (b) any other user.
Please review and provide your comments.
> After HADOOP-4491, the user who started mapred system is not able to run job.
> -----------------------------------------------------------------------------
>
> Key: MAPREDUCE-890
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-890
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Reporter: Karam Singh
> Assignee: Ravi Gummadi
> Priority: Blocker
> Fix For: 0.21.0
>
> Attachments: MAPREDUCE-890-20090904.txt, MAPREDUCE-890-20090909.txt,
> MR890.patch
>
>
> Even setup and cleanup task of job fails due exception -: It fails to create
> job and related directories under mapred.local.dir/taskTracker/jobcache
> Directories are created as -:
> [dr-xrws--- mapred hadoop ] job_200908190916_0002
> mapred is not wrtie under this. Even manually I failed to touch file.
> mapred is use of started mr cluster
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