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From "Chaoyu Tang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-6082) Certain KeeperException should be ignored in ZooKeeperHiveLockManage.unlockPrimitive
Date Fri, 20 Dec 2013 14:42:09 GMT
Chaoyu Tang created HIVE-6082:
---------------------------------

             Summary: 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


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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