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https://issues.apache.org/jira/browse/HIVE-21581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16971441#comment-16971441
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Denys Kuzmenko edited comment on HIVE-21581 at 11/11/19 10:48 AM:
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Hi [~belugabehr], were you able to check whether by removing InputSummary lock
entirely, we won't get significantly higher number on NM calls, that might
overwhelm it?
https://docs.google.com/document/d/1bCu_l266XYgkNQKaXOSqo7DYUXbHs-EVe_RaUygUKt4/edit#heading=h.n3ai3wm9laz2
was (Author: dkuzmenko):
Hi [~belugabehr], were you able to check whether by removing InputSummary lock
entirely, we won't get significantly higher number on NM calls, that might
overwhelm it?
> Remove Lock in GetInputSummary
> ------------------------------
>
> Key: HIVE-21581
> URL: https://issues.apache.org/jira/browse/HIVE-21581
> Project: Hive
> Issue Type: Improvement
> Components: HiveServer2
> Affects Versions: 4.0.0, 3.2.0
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-21581.1.patch, HIVE-21581.2.patch,
> HIVE-21581.3.patch
>
>
> Now that Hive compile lock has been relaxed in [HIVE-20535], remove the
> {{getInputSummary}} lock:
> [https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java#L2459]
>
>
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