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https://issues.apache.org/jira/browse/HIVE-19624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891558#comment-16891558
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xialu commented on HIVE-19624:
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we encounter the same question, any updated? have you already remove
synchronized keyword and do some tests?
> the method closeSession of SessionManager has a synchronized, is it able to
> be removed?
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-19624
> URL: https://issues.apache.org/jira/browse/HIVE-19624
> Project: Hive
> Issue Type: Wish
> Components: HiveServer2
> Affects Versions: 2.1.1
> Reporter: xulongfetion
> Assignee: Naveen Gangam
> Priority: Minor
>
> The methods closeSession of
> org.apache.hive.service.cli.session.SessionManager use
> synchronized for thread safe, i looked at the code and wonder why there's
> need for synchronized.
> Because closeSession sometimes use the hadoop ipc call and takes too much
> time to response, so if it is possible to remove the keyword synchronized.
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