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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17710) LockManager should only lock Managed tables
Date Tue, 12 Dec 2017 19:19:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16288109#comment-16288109
] 

Alan Gates commented on HIVE-17710:
-----------------------------------

+1 for patch 4.

> LockManager should only lock Managed tables
> -------------------------------------------
>
>                 Key: HIVE-17710
>                 URL: https://issues.apache.org/jira/browse/HIVE-17710
>             Project: Hive
>          Issue Type: New Feature
>          Components: Transactions
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>         Attachments: HIVE-17710.01.patch, HIVE-17710.02.patch, HIVE-17710.03.patch, HIVE-17710.04.patch,
HIVE-17710.04.patch
>
>
> should the LM take locks on External tables?  Out of the box Acid LM is being conservative
which can cause throughput issues.
> A better strategy may be to exclude External tables but enable explicit "lock table/partition
<lock mode>" command (only on external tables?).



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