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Date: Fri, 4 Aug 2006 05:36:14 -0700 (PDT)
From: "Devaraj Das (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Updated: (HADOOP-415) DFSNodesStatus() should sort data
 nodes.
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     [ http://issues.apache.org/jira/browse/HADOOP-415?page=all ]

Devaraj Das updated HADOOP-415:
-------------------------------

    Attachment: refactor_nodestatus.patch

Well, that should be okay since the jsp file actually belongs to the dfs package. But in any case, I have attached a new patch with the DatanodeDescriptor changes reverted.

> 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, 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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