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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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Jitendra Nath Pandey updated HDFS-1554:
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Attachment: HDFS-1554.20-security.1.patch
Patch for 20-security.
> Append 0.20: 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
>
> Attachments: HDFS-1554.20-security.1.patch, 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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