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https://issues.apache.org/jira/browse/DRILL-6832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16995293#comment-16995293
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ASF GitHub Bot commented on DRILL-6832:
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paul-rogers commented on pull request #1929: DRILL-6832: Removes the old
"unmanaged" external sort
URL: https://github.com/apache/drill/pull/1929
When the "managed" external sort was implemented a couple of years back, we
retained the original "unmanaged" version out of an abundance of caution. The
new version is now battle tested and it is time to retire the original one.
Tests: reran all tests. Adjusted one test where the metrics names for the
two sort versions got out of sync.
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> Remove old "unmanaged" sort implementation
> ------------------------------------------
>
> Key: DRILL-6832
> URL: https://issues.apache.org/jira/browse/DRILL-6832
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.14.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Minor
>
> Several releases back Drill introduced a new "managed" external sort that
> enhanced the sort operator's memory management. To be safe, at the time, the
> new version was controlled by an option, with the ability to revert to the
> old version.
> The new version has proven to be stable. The time has come to remove the old
> version.
> * Remove the implementation in {{physical.impl.xsort}}.
> * Move the implementation from {{physical.impl.xsort.managed}} to the parent
> package.
> * Remove the conditional code in the batch creator.
> * Remove the option that allowed disabling the new version.
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