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From "Ted Malaska (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-5132) Enhance FairScheduler queue selection with Unix-SubGroups
Date Fri, 05 Apr 2013 15:25:16 GMT
Ted Malaska created MAPREDUCE-5132:
--------------------------------------

             Summary: Enhance FairScheduler queue selection with Unix-SubGroups
                 Key: MAPREDUCE-5132
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5132
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
            Reporter: Ted Malaska
            Priority: Minor


I have clients that use the primary group for other reasons and would like to select the fairScheduler
queue by subgroup.

Currently the fairscheduler can only link a job config property to a fairscheduler queue and
subgroups are not in the job config.  

Now thankfully we can get this data from UserGroupInformation.createProxyUser which is cool
because this is how TT currently see if it can copy data when kerberos is enabled.  Once we
have the sub-groups we just connect the first sub-group that matches a queue.

I'll put up some code that I used to solve the problem in the short term.  

Note that there is an issue with this code.  It doesn't populate the TT Web UI drop down menu
correctly.  I think I have a solution for that, but before I implement that I was wondering
if the community has any feedback first.

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