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https://issues.apache.org/jira/browse/HADOOP-1873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12546512
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Doug Cutting commented on HADOOP-1873:
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I agree that transmitting the job.xml data via RPC is probably the best
long-term solution. The job.jar file is also a potential issue. Perhaps we
can move all access to it to the task jvm, instead of having the tasktracker
unpack it? But, again, the short-term solution of placing both of these in a
world-writable, system-readable directory works fine.
> 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
>
> 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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