[jira] [Commented] (HIVE-3537) release locks at the end of move tasks

["Kevin Wilfong (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-3537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13530176#comment-13530176 ] 

Kevin Wilfong commented on HIVE-3537:
-------------------------------------

+1
                
> release locks at the end of move tasks
> --------------------------------------
>
>                 Key: HIVE-3537
>                 URL: https://issues.apache.org/jira/browse/HIVE-3537
>             Project: Hive
>          Issue Type: Bug
>          Components: Locking, Query Processor
>            Reporter: Namit Jain
>            Assignee: Namit Jain
>         Attachments: hive.3537.1.patch, hive.3537.2.patch, hive.3537.3.patch
>
>
> Look at HIVE-3106 for details.
> In order to make sure that concurrency is not an issue for multi-table 
> inserts, the current option is to introduce a dependency task, which thereby
> delays the creation of all partitions. It would be desirable to release the
> locks for the outputs as soon as the move task is completed. That way, for
> multi-table inserts, the concurrency can be enabled without delaying any 
> table.
> Currently, the movetask contains a input/output, but they do not seem to be
> populated correctly.

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