Paul Yang created HIVE-3000:
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             Summary: 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


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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