Changing permissions of files/dirs under job-work-dir may be needed sothat
cleaning up of job-dir in all mapred-local-directories succeeds always
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Key: MAPREDUCE-1422
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1422
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: tasktracker
Reporter: Ravi Gummadi
After MAPREDUCE-896, if LinuxTaskController is set in config, task-controller
binary is launched for changing permissions of taskAttemptDir and taskWorkDir
before cleaning up of these directories sothat cleanup will be succeeded even
if user had created files/dirs under taskAttemptDir or taskWorkDir with
non-writable permissions. Users can't create files/dirs under job-dir directly
as we set 2570 for job-dir. But as job-work-dir has 2770 permissions and user
can create files/dirs under job-work-dir with non-writable permissions,
Changing permissions of files/dirs under job-work-dir may be needed sothat
cleaning up of job-dir in all mapred-local-directories succeeds always.
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