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Posted to issues@tez.apache.org by "Bikas Saha (JIRA)" <ji...@apache.org> on 2014/10/13 08:29:33 UTC

[jira] [Created] (TEZ-1656) Grouping of splits should maintain the original ordering of splits within a group

Bikas Saha created TEZ-1656:
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             Summary: Grouping of splits should maintain the original ordering of splits within a group
                 Key: TEZ-1656
                 URL: https://issues.apache.org/jira/browse/TEZ-1656
             Project: Apache Tez
          Issue Type: Task
            Reporter: Bikas Saha
            Assignee: Bikas Saha


Sometimes the original splits may have an ordering (eg. splits from a sorted file). Maintaining the ordering of splits inside a group maintains the sort order.
The node level grouping maintains ordering. When collecting leftover groups for rack level grouping, the ordering is lost in current code.



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