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https://issues.apache.org/jira/browse/HIVE-4620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13672744#comment-13672744
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Navis commented on HIVE-4620:
-----------------------------
It would be good to make a phabricator or review-board entry.
in TaskRunner.run()
{noformat}
taskRunnerID.set(taskCounter.incrementAndGet());
{noformat}
Is it necessary? If it is, is that should be called in runSequential() rather
than run()?
> MR temp directory conflicts in case of parallel execution mode
> --------------------------------------------------------------
>
> Key: HIVE-4620
> URL: https://issues.apache.org/jira/browse/HIVE-4620
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 0.11.0
> Reporter: Prasad Mujumdar
> Assignee: Prasad Mujumdar
> Fix For: 0.12.0
>
> Attachments: HIVE-4620-1.patch, HIVE-4620-2.patch
>
>
> In parallel query execution mode, all the parallel running task ends up
> sharing the same temp/scratch directory. This could lead to file conflicts
> and temp files getting deleted before the job completion.
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