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Posted to issues@tez.apache.org by "Hitesh Shah (JIRA)" <ji...@apache.org> on 2015/02/27 19:29:04 UTC

[jira] [Created] (TEZ-2161) Support different aggregation models for counters

Hitesh Shah created TEZ-2161:
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             Summary: Support different aggregation models for counters 
                 Key: TEZ-2161
                 URL: https://issues.apache.org/jira/browse/TEZ-2161
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Hitesh Shah


Some counters such as last event received time need to be handled different to say bytes read counters. Bytes reads requires a summation across all tasks within a vertex. The received time requires doing a max() across all the tasks. First event received time would likely need a min().



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