[jira] [Commented] (HIVE-3000) Potential infinite loop / log spew in ZookeeperHiveLockManager

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

    [ 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.

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