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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-928) Ability to provide custom DatanodeProtocol implementation
Date Wed, 27 Jan 2010 02:52:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12805330#action_12805330
] 

Konstantin Boudnik commented on HDFS-928:
-----------------------------------------

I would like to hear your argument about how such thing will help with the testing, if possible?

> Ability to provide custom DatanodeProtocol implementation
> ---------------------------------------------------------
>
>                 Key: HDFS-928
>                 URL: https://issues.apache.org/jira/browse/HDFS-928
>             Project: Hadoop HDFS
>          Issue Type: Wish
>          Components: data-node
>            Reporter: Zlatin Balevsky
>            Priority: Trivial
>
> This should make testing easier as well as allow users to provide their own RPC/namenode
implementations.  It's pretty straightforward:
> 1. add 
> interface DatanodeProtocolProvider {
>   DatanodeProtocol getNameNode(Configuration conf);
> }
> 2. add a config setting like "dfs.datanode.protocol.impl"
> 3. create a default implementation and copy/paste the RPC initialization code there

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