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https://issues.apache.org/jira/browse/HIVE-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12806169#action_12806169
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Zheng Shao commented on HIVE-1109:
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There is no separate test for temp directories.
But every query we test uses the temp directories (which are changed by this
patch), so I think as long as all the current tests pass, it should be good.
> Structured temporary directories
> --------------------------------
>
> Key: HIVE-1109
> URL: https://issues.apache.org/jira/browse/HIVE-1109
> Project: Hadoop Hive
> Issue Type: Improvement
> Affects Versions: 0.6.0
> Reporter: Zheng Shao
> Assignee: Zheng Shao
> Attachments: HIVE-1109.1.patch, HIVE-1109.2.patch
>
>
> Currently Hive execution uses a lot of temporary directories. These
> directories are NOT named by date or time, so it's impossible to know what
> are the temporary directories (in case the query failed to clean up) that can
> be deleted safely.
> We should have a better temporary directory structure, with the date and time
> in the directory name.
> This will help a lot when we are able to resume a query that failed in the
> middle, because we need to preserve the temporary directories for that query.
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