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Posted to dev@hive.apache.org by "Chaoyu Tang (JIRA)" <ji...@apache.org> on 2013/12/20 15:46:11 UTC

[jira] [Assigned] (HIVE-6082) Certain KeeperException should be ignored in ZooKeeperHiveLockManage.unlockPrimitive

     [ https://issues.apache.org/jira/browse/HIVE-6082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chaoyu Tang reassigned HIVE-6082:
---------------------------------

    Assignee: Chaoyu Tang

> Certain KeeperException should be ignored in ZooKeeperHiveLockManage.unlockPrimitive
> ------------------------------------------------------------------------------------
>
>                 Key: HIVE-6082
>                 URL: https://issues.apache.org/jira/browse/HIVE-6082
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.12.0
>            Reporter: Chaoyu Tang
>            Assignee: Chaoyu Tang
>         Attachments: Hive-6082.patch
>
>
> KeeperException.NoNodeException and NotEmptyException should be ignored when deleting a zLock or its parent in ZooKeeperHiveLockManager unlockPrimitive. The exceptions can happen: 
> 1) ZooKeeperHiveLockManager retries deleting a zLock after a failure but it has been deleted. 
> 2) a race condition where another process adds a zLock just before it is about to be deleted.
> Otherwise, unlock may unnecessarily be retried for numRetriesForUnLock times.



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