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Posted to issues@tez.apache.org by "Siddharth Seth (JIRA)" <ji...@apache.org> on 2014/09/03 03:58:51 UTC

[jira] [Created] (TEZ-1532) Auto Reduce parallelism can double count the same attempt in case of retires

Siddharth Seth created TEZ-1532:
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             Summary: Auto Reduce parallelism can double count the same attempt in case of retires
                 Key: TEZ-1532
                 URL: https://issues.apache.org/jira/browse/TEZ-1532
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Siddharth Seth


ShuffleVertexManager has no notion of which task succeeded. In case the same task is retried, and completes before other running attempts - it's possible for stats sent from this task to be counted multiple times.



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