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https://issues.apache.org/jira/browse/HIVE-11777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14986920#comment-14986920
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Lefty Leverenz commented on HIVE-11777:
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+1 for the parameter description of hive.orc.splits.directory.batch.ms.

> implement an option to have single ETL strategy for multiple directories
> ------------------------------------------------------------------------
>
>                 Key: HIVE-11777
>                 URL: https://issues.apache.org/jira/browse/HIVE-11777
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-11777.01.patch, HIVE-11777.02.patch, 
> HIVE-11777.03.patch, HIVE-11777.04.patch, HIVE-11777.patch
>
>
> In case of metastore footer PPD we don't want to call PPD call with all 
> attendant SARG, MS and HBase overhead for each directory. If we wait for some 
> time (10ms? some fraction of inputs?) we can do one call without losing 
> overall perf. 
> For now make it time based.



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