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https://issues.apache.org/jira/browse/DRILL-2757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534660#comment-14534660
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Deneche A. Hakim commented on DRILL-2757:
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marked as blocker, as DRILL-2878 and DRILL-2476 patches depend on this.
> Verify operators correctly handle low memory conditions and cancellations
> -------------------------------------------------------------------------
>
> Key: DRILL-2757
> URL: https://issues.apache.org/jira/browse/DRILL-2757
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Flow, Execution - Relational Operators
> Affects Versions: 0.8.0
> Reporter: Chris Westin
> Assignee: Steven Phillips
> Priority: Blocker
> Fix For: 1.0.0
>
> Attachments: DRILL-2757.1.patch.txt
>
>
> Check that the path through sort that notices low memory conditions and
> causes the sort to spill ("out of memory condition management").
> Also check to make sure we handle queries and fragment failures properly
> under these conditions.
> "hashjoin, hashagg, and topn use large amounts of memory,and may be unable to
> complete if their memory needs can't be met; for all others, the idea is that
> they can complete if they get their reservation"
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