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https://issues.apache.org/jira/browse/HDFS-460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved HDFS-460.
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Resolution: Won't Fix
Closing this as won't fix.... and leaving it at that.
> Expose NN and DN hooks to service plugins
> -----------------------------------------
>
> Key: HDFS-460
> URL: https://issues.apache.org/jira/browse/HDFS-460
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode, namenode
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
>
> This is the other half of the old HADOOP-5640 (Allow ServicePlugins to hook
> callbacks into key service events). It adds hooks to the NN and DN to expose
> certain events to plugins.
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