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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-1042) add ability to specify affinity/anti-affinity in container requests
Date Wed, 07 Aug 2013 18:12:48 GMT
Steve Loughran created YARN-1042:
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             Summary: add ability to specify affinity/anti-affinity in container requests
                 Key: YARN-1042
                 URL: https://issues.apache.org/jira/browse/YARN-1042
             Project: Hadoop YARN
          Issue Type: New Feature
          Components: resourcemanager
    Affects Versions: 3.0.0
            Reporter: Steve Loughran


container requests to the AM should be able to request anti-affinity to ensure that things
like Region Servers don't come up on the same failure zones. 

Similarly, you may be able to want to specify affinity to same host or rack without specifying
which specific host/rack. Example: bringing up a small giraph cluster in a large YARN cluster
would benefit from having the processes in the same rack purely for bandwidth reasons.

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