New semantics for recoverLease
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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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