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https://issues.apache.org/jira/browse/HDFS-1554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang updated HDFS-1554:
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    Attachment:     (was: appendRecoverLease1.patch)

> 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
>
>         Attachments: appendRecoverLease.patch, appendRecoverLease1.patch
>
>
> 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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