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https://issues.apache.org/jira/browse/HIVE-14799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chaoyu Tang updated HIVE-14799:
-------------------------------
Attachment: HIVE-14799.1.patch
Attach a new patch which:
1. fix the issue causing the test failures in precommit build
2. check the finished thread more frequently (change the sleep time from 1000
ms to 100 ms)
3. remove the empty spaces
> Query operation are not thread safe during its cancellation
> -----------------------------------------------------------
>
> Key: HIVE-14799
> URL: https://issues.apache.org/jira/browse/HIVE-14799
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Chaoyu Tang
> Assignee: Chaoyu Tang
> Attachments: HIVE-14799.1.patch, HIVE-14799.patch
>
>
> When a query is cancelled either via Beeline (Ctrl-C) or API call
> TCLIService.Client.CancelOperation, SQLOperation.cancel is invoked in a
> different thread from that running the query to close/destroy its
> encapsulated Driver object. Both SQLOperation and Driver are not thread-safe
> which could sometimes result in Runtime exceptions like NPE. The errors from
> the running query are not handled properly therefore probably causing some
> stuffs (files, locks etc) not being cleaned after the query termination.
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