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https://issues.apache.org/jira/browse/HDFS-2760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe resolved HDFS-2760.
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Resolution: Duplicate
> HDFS notification
> ------------------
>
> Key: HDFS-2760
> URL: https://issues.apache.org/jira/browse/HDFS-2760
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 0.20.2
> Reporter: Denny Ye
> Priority: Minor
> Labels: HDFS
>
> Client would like to receive the interested namespace operation at HDFS,
> likes 'rename', 'block allocation' and so on. NameNode should support the
> changing notification to client with appropriate way.
> In my opinion, I suggest the notification should be applied between NameNode
> RPC server and actual NameNode object (it's proxy for NameNode object).
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