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https://issues.apache.org/jira/browse/HIVE-11777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14903760#comment-14903760
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Sergey Shelukhin edited comment on HIVE-11777 at 9/23/15 1:16 AM:
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[~gopalv] this is the method to not make metastore call per split. Thoughts?
Another alternative I thought about was to make metastore call from one thread,
allowing directory listings to accumulate until it completes, for the next call.
was (Author: sershe):
[~gopalv] this is the method to not make metastore call per split. Thoughts?
> 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
> Fix For: hbase-metastore-branch
>
> Attachments: 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.
> NO PRECOMMIT TESTS
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