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Posted to issues@tez.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2015/06/18 01:45:01 UTC

[jira] [Created] (TEZ-2565) Consider scanning unfinished tasks in VertexImpl::constructStatistics to reduce merge overhead

Rajesh Balamohan created TEZ-2565:
-------------------------------------

             Summary: Consider scanning unfinished tasks in VertexImpl::constructStatistics to reduce merge overhead
                 Key: TEZ-2565
                 URL: https://issues.apache.org/jira/browse/TEZ-2565
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Rajesh Balamohan


constructStatistics() can be an overhead (scanning all tasks and merging stats) depending on the number of invocations to Vertex::getStatistics().  Consider scanning only unfinished tasks.



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