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https://issues.apache.org/jira/browse/HIVE-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13776747#comment-13776747
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Shreepadma Venugopalan commented on HIVE-4629:
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* Operation logs don't persist beyond the life of an operation. If
getLog(opHandle) is called after a CloseOperation() or CancelOperation(), an
exception is raised.
* If getLog() is called on the same operationHandle twice, the log up to the
point will be returned. Note that the log is maintained as a circular buffer
and loops back. The default size is 128 KB, but is configurable. We have not
come across a case where 128 KB was insufficient.
> HS2 should support an API to retrieve query logs
> ------------------------------------------------
>
> Key: HIVE-4629
> URL: https://issues.apache.org/jira/browse/HIVE-4629
> Project: Hive
> Issue Type: Sub-task
> Components: HiveServer2
> Reporter: Shreepadma Venugopalan
> Assignee: Shreepadma Venugopalan
>
> HiveServer2 should support an API to retrieve query logs. This is
> particularly relevant because HiveServer2 supports async execution but
> doesn't provide a way to report progress. Providing an API to retrieve query
> logs will help report progress to the client.
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