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Posted to issues@tez.apache.org by "Bikas Saha (JIRA)" <ji...@apache.org> on 2013/10/27 02:38:30 UTC

[jira] [Created] (TEZ-585) Unify code path for reused and new containers

Bikas Saha created TEZ-585:
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             Summary: Unify code path for reused and new containers
                 Key: TEZ-585
                 URL: https://issues.apache.org/jira/browse/TEZ-585
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Bikas Saha


Without this there is a race between new and reused containers for task assignments. It is not correct to assign a task to a rack-local new container if there is a rack-local reused container that can also be matched. Unifying the assignment logic can help prevent this systematically. 
This also sets us up to trade-off rack-local reused container vs node-local new container if we want to do that.




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