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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1554) New semantics for recoverLease
Date Wed, 22 Dec 2010 23:15:01 GMT
New semantics for recoverLease

                 Key: HDFS-1554
                 URL: https://issues.apache.org/jira/browse/HDFS-1554
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Hairong Kuang
            Assignee: Hairong Kuang
             Fix For: 0.20-append, 0.22.0, 0.23.0

Current recoverLease API implemented in append 0.20 aims to provide a lighter weight (comparing
to using create/append) way to trigger a file's soft lease expiration. From both the use case
of hbase and scribe, it could have a stronger semantics: revoking the file's lease, thus starting
lease recovery immediately.

Also I'd like to port this recoverLease API to HDFS 0.22 and trunk since HBase is moving to
HDFS 0.22.

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