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From "Andrey Stepachev (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2134) FairSchduler AllocationConfiguration doesn't treat hierarchical queues settings
Date Mon, 09 Jun 2014 10:03:01 GMT
Andrey Stepachev created YARN-2134:
--------------------------------------

             Summary: FairSchduler AllocationConfiguration doesn't treat hierarchical queues
settings
                 Key: YARN-2134
                 URL: https://issues.apache.org/jira/browse/YARN-2134
             Project: Hadoop YARN
          Issue Type: Bug
          Components: fairscheduler
            Reporter: Andrey Stepachev


AllocationConfiguration doesn't fully qualify queue names with respect to 'root.' prefix.
Such behaviour leads to situation where settings for nested queue doesn't take effect. 
Consider following config (working example in broken-hier-queues.diff attached) sub queue
settings were not applied by method queueConf.getMaxResources.

{code:xml}
<queue name="queueA">
<maxResources>2048mb,10vcores</maxResources>
<queue name="queueB">
<maxResources>512mb,1vcores</maxResources>
</queue>
</queue>
{code}

I made patch, which unifies QueueName operations (remove those indexOf copy pastes) and apply
some of settings in hierarchical manner  (say preemption timeout can be used from parent queue
instead of global default).

Also it is interesting to introduce type safe object QueueName and replace String in interfaces,
and a have made an attempt (https://github.com/octo47/hadoop-common/tree/feature/octo/fs-queue-name),
but looks like it lead to some inconstancy and I think that it is not necessary right now).



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