[jira] Commented: (HIVE-1109) Structured temporary directories

["Ning Zhang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12806167#action_12806167 ] 

Ning Zhang commented on HIVE-1109:
----------------------------------

Code changes looks good. Is there a unit test already for temp directories?

> 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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