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https://issues.apache.org/jira/browse/HADOOP-656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raghu Angadi resolved HADOOP-656.
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Resolution: Fixed
There are no HDFS file locks.
> dfs locking doesn't notify the application when a lock is lost
> --------------------------------------------------------------
>
> Key: HADOOP-656
> URL: https://issues.apache.org/jira/browse/HADOOP-656
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.7.2
> Reporter: Owen O'Malley
> Assignee: 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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