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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-19820) add ACID stats support to background stats updater and fix bunch of edge cases found in SU tests
Date Fri, 13 Jul 2018 22:27:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-19820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16543814#comment-16543814
] 

Sergey Shelukhin commented on HIVE-19820:
-----------------------------------------

Fixed the issue where merge was not working correctly due to isCompliant flag, and also changed
merge to be more strict for txn stats (in particular, always set stats to invalid if stats
cannot be merged)

> add ACID stats support to background stats updater and fix bunch of edge cases found
in SU tests
> ------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-19820
>                 URL: https://issues.apache.org/jira/browse/HIVE-19820
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>            Priority: Major
>         Attachments: HIVE-19820.01-master-txnstats.patch, HIVE-19820.01.patch, HIVE-19820.02-master-txnstats.patch,
HIVE-19820.03-master-txnstats.patch, HIVE-19820.04-master-txnstats.patch, HIVE-19820.04.patch,
HIVE-19820.patch, branch-19820.02.nogen.patch, branch-19820.03.nogen.patch, branch-19820.nogen.patch,
branch-19820.nogen.patch
>
>
> Follow-up from HIVE-19418.
> Right now it checks whether stats are valid in an old-fashioned way... and also gets
ACID state, and discards it without using.
> When ACID stats are implemented, ACID state needs to be used to do version-aware valid
stats checks.



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