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https://issues.apache.org/jira/browse/HIVE-20790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16662444#comment-16662444
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Sahil Takiar commented on HIVE-20790:
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Yet another edge to consider, guarding against multiple threads calling
{{open()}} in parallel. HIVE-20737 fixed this issue by re-using the
{{closeLock()}} to synchronize calls to the {{open()}} method. However, as I
stated in the RB comments of HIVE-20737 we should use a separate lock to guard
against this behavior.
> SparkSession should be able to close a session while it is being opened
> -----------------------------------------------------------------------
>
> Key: HIVE-20790
> URL: https://issues.apache.org/jira/browse/HIVE-20790
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Sahil Takiar
> Assignee: Antal Sinkovits
> Priority: Major
>
> In HIVE-14162 we adding locks to {{SparkSessionImpl}} to support scenarios
> where we want to close the session due to a timeout. However, the locks
> remove the ability to close a session while it is being opened. This is
> important to allow cancelling of a session while it is being setup. This can
> be useful on busy clusters where there may not be enough YARN containers to
> setup the Spark Remote Driver.
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