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https://issues.apache.org/jira/browse/HADOOP-1873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533887
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Christophe Taton commented on HADOOP-1873:
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Just a small warning: these kind of file access restrictions work under fully
compliant POSIX permissions. As it has been discussed in HADOOP-1298, the
current design is to add permissions on directories only, which would actually
not allow this kind of restriction directly.
We could achieve this by inserting sub-directories to allow any access
restriction scheme, or else we'll need to redesign H-1298 to provide full-POSIX
permissions.
> User permissions for Map/Reduce
> -------------------------------
>
> Key: HADOOP-1873
> URL: https://issues.apache.org/jira/browse/HADOOP-1873
> Project: Hadoop
> Issue Type: Improvement
> Reporter: Raghu Angadi
> Assignee: Raghu Angadi
>
> HADOOP-1298 and HADOOP-1701 add permissions and pluggable security for DFS
> files and DFS accesses. Same users permission should work for Map/Reduce jobs
> as well.
> User persmission should propegate from client to map/reduce tasks and all the
> file operations should be subject to user permissions. This is transparent to
> the user (i.e. no changes to user code should be required).
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