[jira] [Created] (HIVE-23459) Reduce number of listPath calls in AcidUtils::getAcidState

[Rajesh Balamohan (Jira)]

Rajesh Balamohan created HIVE-23459:
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             Summary: 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
         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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