[ http://issues.apache.org/jira/browse/HADOOP-396?page=all ]
Konstantin Shvachko updated HADOOP-396:
---------------------------------------
Attachment: DatanodeID3.patch
I removed the two lines mentioned by Devaraj.
> 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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