dfs locking doesn't notify the application when a lock is lost
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Key: HADOOP-656
URL: http://issues.apache.org/jira/browse/HADOOP-656
Project: Hadoop
Issue Type: Bug
Components: dfs
Affects Versions: 0.7.2
Reporter: Owen O'Malley
Assigned To: Sameer Paranjpye
DFS locks may be lost for failing to renew the lease on time, but the
application is not notified about the loss of the lock and may therefore
perform operations assuming it has the lock, even though the lock has been
given to another process. I propose that DFS operations check to see if that
client has lost a lock since the last check and if so throw a LostLockException.
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