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List:       hadoop-dev
Subject:    [jira] Updated: (HADOOP-321) DatanodeInfo refactoring
From:       "Konstantin Shvachko (JIRA)" <jira () apache ! org>
Date:       2006-06-29 2:38:30
Message-ID: 15952657.1151548710683.JavaMail.jira () brutus
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     [ http://issues.apache.org/jira/browse/HADOOP-321?page=all ]

Konstantin Shvachko updated HADOOP-321:
---------------------------------------

    Attachment: DatanodeInfo_refactor4.patch

This one is updated in synch with the last release.

> DatanodeInfo refactoring
> ------------------------
>
>          Key: HADOOP-321
>          URL: http://issues.apache.org/jira/browse/HADOOP-321
>      Project: Hadoop
>         Type: Improvement

>   Components: dfs
>     Reporter: Konstantin Shvachko
>     Assignee: Konstantin Shvachko
>      Fix For: 0.5.0
>  Attachments: DatanodeInfo_refactor.patch, DatanodeInfo_refactor3.patch, DatanodeInfo_refactor4.patch
>
> I'm trying to refactor some name node classes, which seem to be similar.
> So DatanodeInfo is a public api now for purely external ( to name node) use.
> The name node class that stores information about data nodes including the
> set of its blocks is called DatanodeDescriptor.
> The DatanodeReport is removed since it was a variation of DatanodeInfo.
> Previously DatanodeInfo and DatanodeDescriptor were the same class, and
> DatanodeReport was used for reporting node statistics only.
> This is a preparation step for HADOOP-306.

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