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Posted to issues@tez.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2017/07/31 04:34:00 UTC

[jira] [Created] (TEZ-3808) ShuffleHandler: optimize fadvise calls for broadcast edge

Rajesh Balamohan created TEZ-3808:
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             Summary: ShuffleHandler: optimize fadvise calls for broadcast edge
                 Key: TEZ-3808
                 URL: https://issues.apache.org/jira/browse/TEZ-3808
             Project: Apache Tez
          Issue Type: Improvement
            Reporter: Rajesh Balamohan
            Priority: Minor


Currently, once the data is transferred `fadvise` call is invoked to throw away the pages. This may not be very helpful in broadcast, as it would tend to transfer the same data to multiple downstream tasks.

Similar hive ticket: HIVE-17174



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