[ http://issues.apache.org/jira/browse/HADOOP-415?page=all ]
Devaraj Das updated HADOOP-415:
-------------------------------
Attachment: refactor_nodestatus.patch
Agree with this. Attached is the patch. In dfshealth.jsp, I also changed the
DatanodeInfo references to DatanodeDescriptor to reflect the current code.
> DFSNodesStatus() should sort data nodes.
> ----------------------------------------
>
> Key: HADOOP-415
> URL: http://issues.apache.org/jira/browse/HADOOP-415
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.4.0
> Reporter: Konstantin Shvachko
> Fix For: 0.5.0
>
> Attachments: refactor_nodestatus.patch
>
>
> HADOOP-392 introduced a new TreeMap member (datanodeMapByName) in the name
> node.
> It is used solely for reporting the data nodes in the UI sorted by their
> names.
> I think it is quite inefficient both time and space-wise to support an
> excessive
> data structure just for that.
> Suppose the UI will also require sorting by last heartbeat and/or by the
> available space....
> I think DFSNodesStatus() should just sort the original datanodeMap before
> returning the list.
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