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https://issues.apache.org/jira/browse/HIVE-15951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15879410#comment-15879410
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Ashutosh Chauhan commented on HIVE-15951:
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I checked commons-io is not packaged with hive-exec so it wont be available on
task nodes. All callers of FileUtils in hive-common are in front end, so it
wont be an issue for it. But if we add it here, we will need commons-io jar on
task nodes.
> Make sure base persist directory is unique and deleted
> ------------------------------------------------------
>
> Key: HIVE-15951
> URL: https://issues.apache.org/jira/browse/HIVE-15951
> Project: Hive
> Issue Type: Bug
> Components: Druid integration
> Affects Versions: 2.2.0
> Reporter: slim bouguerra
> Assignee: slim bouguerra
> Priority: Critical
> Fix For: 2.2.0
>
> Attachments: HIVE-15951.2.patch, HIVE-15951.patch
>
>
> In some cases the base persist directory will contain old data or shared
> between reducer in the same physical VM.
> That will lead to the failure of the job till that the directory is cleaned.
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