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https://issues.apache.org/jira/browse/HDFS-5748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13874918#comment-13874918
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Kihwal Lee commented on HDFS-5748:
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I will point out few things I've noticed with firefox.
- When viewing the datanodes tab, jmx query of
"Hadoop:service=NameNode,name=NameNodeInfo" is made three times. This was
already retrieved when dfshealth.html was initially loaded.
- When viewing explorer.html, the page header (tabs) are not shown. The log
page is not under NN's control, so it is okay this way for now. This page has
other problems, but we can deal with them in a separate jira.
- In the old UI, users could load up the datanode page and refresh manually. A
refresh button might help.
- Version info was dropped in the datanodes view. This is important for rolling
upgrades.
- Live and dead nodes need to be grouped together.
- Lost ability to sort by each column. Adding this feature may solve the
grouping problem.
- Somehow the datanodes table is not populated with this patch.
> Too much information shown in the dfs health page.
> --------------------------------------------------
>
> Key: HDFS-5748
> URL: https://issues.apache.org/jira/browse/HDFS-5748
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Kihwal Lee
> Assignee: Haohui Mai
> Attachments: HDFS-5748.000.patch, hdfs-5748.png
>
>
> I've noticed that the node lists are shown in the default name node web page.
> This may be fine for small clusters, but for clusters with 1000s of nodes,
> this is not ideal. The following should be shown on demand. (Some of them
> have been there even before the recent rework.)
> - Detailed data node information
> - Startup progress
> - Snapshot information
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