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https://issues.apache.org/jira/browse/DRILL-4236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15098538#comment-15098538
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Victoria Markman commented on DRILL-4236:
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I'm going to compare my runs with 1.4.0 release and post my findings here.
> ExternalSort should use the new allocator functionality to better manage it's
> memory usage
> ------------------------------------------------------------------------------------------
>
> Key: DRILL-4236
> URL: https://issues.apache.org/jira/browse/DRILL-4236
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Relational Operators
> Affects Versions: 1.5.0
> Reporter: Deneche A. Hakim
> Assignee: Deneche A. Hakim
> Labels: documentation
> Fix For: 1.5.0
>
>
> Before DRILL-4215, the sort operator wasn't able to correctly compute it's
> memory usage, and so it jumped through a bunch of hoops to try to figure out
> when it should spill to disk.
> With the transfer accounting in place, this code can be greatly simplified to
> just use the current operator memory allocation.
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