Mailing-List: contact dev-help@hive.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@hive.apache.org
Date: Wed, 9 Jan 2013 10:24:51 +0000 (UTC)
From: "Hudson (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <JIRA.12553687.1336006386913.103374.1357727091646@arcas>
In-Reply-To: <JIRA.12553687.1336006386913@arcas>
References: <JIRA.12553687.1336006386913@arcas>
Subject: [jira] [Commented] (HIVE-3000) Potential infinite loop / log spew
 in ZookeeperHiveLockManager
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HIVE-3000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13547877#comment-13547877 ] 

Hudson commented on HIVE-3000:
------------------------------

Integrated in Hive-trunk-hadoop2 #54 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/54/])
    HIVE-3000 Potential infinite loop / log spew in ZookeeperHiveLockManager (njain via kevinwilfong) (Revision 1335106)

     Result = ABORTED
kevinwilfong : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1335106
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/lockmgr/zookeeper/ZooKeeperHiveLockManager.java

                
> Potential infinite loop / log spew in ZookeeperHiveLockManager
> --------------------------------------------------------------
>
>                 Key: HIVE-3000
>                 URL: https://issues.apache.org/jira/browse/HIVE-3000
>             Project: Hive
>          Issue Type: Bug
>          Components: Locking
>    Affects Versions: 0.9.0
>            Reporter: Paul Yang
>            Assignee: Namit Jain
>             Fix For: 0.10.0
>
>         Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-3000.D3063.1.patch
>
>
> See ZookeeperHiveLockManger.lock()
> If Zookeeper is in a bad state, it's possible to get an exception (e.g. org.apache.zookeeper.KeeperException$SessionExpiredException) when we call lockPrimitive(). There is a bug in the exception handler where the loop does not exit because the break in the switch statement gets out the switch, not the do..while loop. Because tryNum was not incremented due to the exception, lockPrimitive() will be called in an infinite loop, as fast as possible. Since the exception is printed for each call, Hive will produce significant log spew.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira