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https://issues.apache.org/jira/browse/HIVE-2127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ning Zhang updated HIVE-2127:
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Summary: Improve stats gathering reliability by retries on failures with
hive.stats.retries.max and hive.stats.retries.wait (was: Improve stats
gathering reliability by retries on failures)
> Improve stats gathering reliability by retries on failures with
> hive.stats.retries.max and hive.stats.retries.wait
> ------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-2127
> URL: https://issues.apache.org/jira/browse/HIVE-2127
> Project: Hive
> Issue Type: Improvement
> Reporter: Ning Zhang
> Assignee: Ning Zhang
> Attachments: HIVE-2127.2.patch, HIVE-2127.patch
>
>
> Stats publishing and aggregation only try once and if there is any exception
> it will fail and return. If many mappers/reducers updating stats at the same
> time, it is very common to get lock timeout. We should make stats more
> reliable by retry when there is an SQLException.
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