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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:
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Assignee: Ravi Gummadi (was: Vinod K V)
Status: Open (was: Patch Available)
Setting drwxrws--- for jobcache and distcache directories allows users to
create files in these directories and as these directories won't be cleaned up
for each job(will be cleaned up only when TT is restarted), this can cause
space issues.
So I propose considering tt_user running MR job as a special case and handle
that in a special way. i.e. set drwxrwx--- for distcache and jobcache only for
jobs of tt_user. This keeps the security of these dirs for all other users as
it is there in current trunk.
Thoughts ?
> 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
>
>
> 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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