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https://issues.apache.org/jira/browse/HIVE-28578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HIVE-28578:
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Labels: pull-request-available (was: )
> Concurrency issue in updateTableColumnStatistics
> ------------------------------------------------
>
> Key: HIVE-28578
> URL: https://issues.apache.org/jira/browse/HIVE-28578
> Project: Hive
> Issue Type: Bug
> Security Level: Public(Viewable by anyone)
> Components: Standalone Metastore
> Reporter: Zsolt Miskolczi
> Assignee: Zsolt Miskolczi
> Priority: Major
> Labels: pull-request-available
> Attachments: Repro.java
>
>
> Summary:
> updateTableColumnStatistics can throw
> SQLIntegrityConstraintViolationException during replication if HA is on and
> two different HMS instance gets the same call but with different engine.
>
> Workaround:
> Update table column statistics in single threaded.
>
> Details:
> updateTableColumnStatistics has a relative long running transaction. In that
> transaction, it validates the actual parameters, queries the metastore db
> against the TABLE_PARAMS that are already stored and makes a decision based
> on that. After this, it uses data nucleus to persist the new statistics.
> From the two HMS instances, one can save the column statistics. And the other
> cannot as the first instance already saved them.
>
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