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https://issues.apache.org/jira/browse/MAPREDUCE-4555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alejandro Abdelnur resolved MAPREDUCE-4555.
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Resolution: Not A Problem
These restrictions are by design.
> make user's mapred .staging area permissions configurable
> ---------------------------------------------------------
>
> Key: MAPREDUCE-4555
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4555
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, job submission
> Affects Versions: 1.0.3
> Reporter: Alexander Alten-Lorenz
>
> The directories are created in JobTracker and LocalRunner, but they are
> currently forced to be 0700. There is even a segment of the source code that
> will check the permissions are 0700, and if not it will change the
> permissions to match 0700. For monitoring purposes the permissions should be
> configurable.
> Please note:
> 1. We can make the hard-coded 700 configurable at clients (its the client who
> creates it) but there's two issues here:
> 1.1. It violates security principals (as its client sided and overridable)
> 1.2. It can't be consistent, since some user may ignore configs provided to
> them and create it with 0700.
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