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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3531) Simple lock manager for dedicated hive server
Date Wed, 28 Nov 2012 13:03:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505431#comment-13505431
] 

Hudson commented on HIVE-3531:
------------------------------

Integrated in Hive-trunk-h0.21 #1822 (See [https://builds.apache.org/job/Hive-trunk-h0.21/1822/])
    HIVE-3531 [jira] Simple lock manager for dedicated hive server
(Navis Ryu via Carl Steinbach)

Summary:
DPAL-1906 Implement simple lock manager for hive server

In many cases, we uses hive server as a sole proxy for executing all the queries. For that,
current default lock manager based on zookeeper seemed a little heavy. Simple in-memory lock
manager could be enough.

Test Plan: TestDedicatedLockManager

Reviewers: JIRA, cwsteinbach

Reviewed By: cwsteinbach

Differential Revision: https://reviews.facebook.net/D5871 (Revision 1414590)

     Result = ABORTED
cws : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1414590
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/lockmgr/EmbeddedLockManager.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/lockmgr/HiveLockObject.java
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/lockmgr
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/lockmgr/TestEmbeddedLockManager.java

                
> Simple lock manager for dedicated hive server
> ---------------------------------------------
>
>                 Key: HIVE-3531
>                 URL: https://issues.apache.org/jira/browse/HIVE-3531
>             Project: Hive
>          Issue Type: Improvement
>          Components: Locking, Server Infrastructure
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Trivial
>             Fix For: 0.11
>
>         Attachments: HIVE-3531.D5871.1.patch, HIVE-3531.D5871.2.patch, HIVE-3531.D5871.3.patch
>
>
> In many cases, we uses hive server as a sole proxy for executing all the queries. For
that, current default lock manager based on zookeeper seemed a little heavy. Simple in-memory
lock manager could be enough.

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