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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-396) Writable DatanodeID
Date Tue, 01 Aug 2006 18:27:15 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-396?page=all ]

Doug Cutting resolved HADOOP-396.
---------------------------------

    Resolution: Fixed

I just committed this.  Thanks, Konstantin!

> Writable DatanodeID
> -------------------
>
>                 Key: HADOOP-396
>                 URL: http://issues.apache.org/jira/browse/HADOOP-396
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: dfs
>    Affects Versions: 0.4.0
>            Reporter: Konstantin Shvachko
>         Assigned To: Konstantin Shvachko
>             Fix For: 0.5.0
>
>         Attachments: DatanodeID.patch, DatanodeID2.patch, DatanodeID3.patch
>
>
> This patch implements Owen's comments to HADOOP-321. Namely,
> - Namenode.sendHeartbeat does not create a throwaway DatanodeDescriptor. DatanodeID is
sufficient in this case.
> - DatanodeID is made Writable, and it also implements equals() and hashCode().
> - DatanodeInfo is updated to call base class methods in its implementation of Writable
interface.
> - I changed the way strings are written/read using UTF8.writeString and UTF8.readString.
> - Some comments are updated.

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