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https://issues.apache.org/jira/browse/HIVE-16593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16002515#comment-16002515
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Rui Li commented on HIVE-16593:
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Failures not related. [~xuefuz], could you take a look? Thanks.
> SparkClientFactory.stop may prevent JVM from exiting
> ----------------------------------------------------
>
> Key: HIVE-16593
> URL: https://issues.apache.org/jira/browse/HIVE-16593
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Reporter: Rui Li
> Assignee: Rui Li
> Attachments: HIVE-16593.1.patch
>
>
> When we receive SIGINT more than once, we call System.exit to terminate the
> JVM. System.exit runs the shutdown hooks which in turn calls
> SparkClientFactory.stop. All the methods in SparkClientFactory are
> synchronized and at this point, we may be waiting to create a SparkClientImpl
> in SparkClientFactory.createClient. Therefore SparkClientFactory.stop will be
> blocked until SparkClientFactory.createClient returns.
> The reason why we may be waiting to create SparkClientImpl is usually to wait
> for RemoteDriver to connect. If RemoteDriver runs into problem, the JVM won't
> exit until we timeout.
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