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From "Deneche A. Hakim (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4121) External Sort may not spill if above a receiver
Date Mon, 23 Nov 2015 17:08:11 GMT
Deneche A. Hakim created DRILL-4121:
---------------------------------------

             Summary: External Sort may not spill if above a receiver
                 Key: DRILL-4121
                 URL: https://issues.apache.org/jira/browse/DRILL-4121
             Project: Apache Drill
          Issue Type: Bug
    Affects Versions: 1.1.0
            Reporter: Deneche A. Hakim
            Assignee: Deneche A. Hakim


If external sort is above a receiver, all received batches will contain non root buffers.
Sort operator doesn't account for non root buffers when estimating how much memory and if
it needs to spill to disk. This may delay the spill and cause the corresponding Drillbit to
use large amounts of memory



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