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Posted to issues@hive.apache.org by "Peter Vary (Jira)" <ji...@apache.org> on 2020/06/02 10:21:00 UTC
[jira] [Commented] (HIVE-23459) Reduce number of listPath calls in
AcidUtils::getAcidState
[ https://issues.apache.org/jira/browse/HIVE-23459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17123600#comment-17123600 ]
Peter Vary commented on HIVE-23459:
-----------------------------------
[~nisgoel], [~sankarh]: Please consider HIVE-23495 too.
> Reduce number of listPath calls in AcidUtils::getAcidState
> ----------------------------------------------------------
>
> Key: HIVE-23459
> URL: https://issues.apache.org/jira/browse/HIVE-23459
> Project: Hive
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Nishant Goel
> Priority: Minor
> Attachments: image-2020-05-13-13-57-27-270.png
>
>
> There are atleast 3 places where listPaths is invoked for FS (highlighted in the follow profile).
> !image-2020-05-13-13-57-27-270.png|width=869,height=626!
>
> Dir caching works mainly for BI strategy and when there are no-delta files. It would be good to consider reducing number of NN calls to reduce getSplits time.
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