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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (HDFS-5051) Propagate cache status information from the DataNode to the NameNode
Date Tue, 13 Aug 2013 02:14:48 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on HDFS-5051 started by Andrew Wang.

> Propagate cache status information from the DataNode to the NameNode
> --------------------------------------------------------------------
>
>                 Key: HDFS-5051
>                 URL: https://issues.apache.org/jira/browse/HDFS-5051
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>            Reporter: Colin Patrick McCabe
>            Assignee: Andrew Wang
>         Attachments: hdfs-5051-1.patch, hdfs-5051-2.patch
>
>
> The DataNode needs to inform the NameNode of its current cache state. Let's wire up the
RPCs and stub out the relevant methods on the DN and NN side.

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