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Posted to issues@hive.apache.org by "Sankar Hariappan (Jira)" <ji...@apache.org> on 2020/06/02 10:10:00 UTC

[jira] [Assigned] (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:all-tabpanel ]

Sankar Hariappan reassigned HIVE-23459:
---------------------------------------

    Assignee: Nishant Goel

> 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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