[jira] Commented: (HADOOP-1873) User permissions for Map/Reduce

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-1873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12553988 ] 

Tsz Wo (Nicholas), SZE commented on HADOOP-1873:
------------------------------------------------

I introduce a new static method FsPermission.createImmutable(short) in HADOOP-1298.  Please use it for the constants.

> 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: Hairong Kuang
>         Attachments: mapred.patch
>
>
> 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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