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Posted to issues@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2018/06/08 06:29:00 UTC

[jira] [Commented] (HIVE-19376) Statistics: switch to 10bit HLL by default for Hive

    [ https://issues.apache.org/jira/browse/HIVE-19376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16505746#comment-16505746 ] 

Ashutosh Chauhan commented on HIVE-19376:
-----------------------------------------

Now that HIVE-18079 is in, can you please rebase this patch?

> Statistics: switch to 10bit HLL by default for Hive
> ---------------------------------------------------
>
>                 Key: HIVE-19376
>                 URL: https://issues.apache.org/jira/browse/HIVE-19376
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Statistics
>            Reporter: Gopal V
>            Assignee: Gopal V
>            Priority: Major
>         Attachments: HIVE-19376.1.patch
>
>
> This reduces the memory usage for the metastore cache and the size of bit-vectors in the DB by 16x.



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