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From "Brock Noland (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4761) ZooKeeperHiveLockManage.unlockPrimitive has race condition with threads
Date Wed, 19 Jun 2013 22:28:22 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brock Noland updated HIVE-4761:
-------------------------------

    Attachment: HIVE-4761.patch

https://reviews.facebook.net/D11397
                
> ZooKeeperHiveLockManage.unlockPrimitive has race condition with threads
> -----------------------------------------------------------------------
>
>                 Key: HIVE-4761
>                 URL: https://issues.apache.org/jira/browse/HIVE-4761
>             Project: Hive
>          Issue Type: Sub-task
>    Affects Versions: 0.11.0
>            Reporter: Brock Noland
>            Assignee: Brock Noland
>            Priority: Critical
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4761.patch
>
>
> In unlockPrimitive, we check to see if children exist and if not delete the parent node.
If two threads do this at the same time it's possible for two threads to call Zookeeper.delete()
on the same node.

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