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https://issues.apache.org/jira/browse/HDFS-10440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15307905#comment-15307905
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Kihwal Lee commented on HDFS-10440:
-----------------------------------
Thanks for the patch. I think it is showing the available information very
well. Having said that, we can take this opportunity to expose more on the
block pool via jmx. The namenode addressed are useful, but showing the service
actor state will be even better. Sometimes datanodes have trouble talking to
some namenode, but not all. Verifying it usually involves looking at the log.
Exposing individual BP service actor state through jmx and showing them through
UI will be very helpful.
For the storage section, {{VolumeInfo}} in trunk/2.9/2.8 already contains
{{reservedSpaceForReplicas}} (HDFS-6955) and {{numBlocks}} (HDFS-9425). Please
verify (screenshot?) they appear on the web ui.
> Improve DataNode web UI
> -----------------------
>
> Key: HDFS-10440
> URL: https://issues.apache.org/jira/browse/HDFS-10440
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.5.0, 2.6.0, 2.7.0
> Reporter: Weiwei Yang
> Attachments: HDFS-10440.001.patch, datanode_html.001.jpg,
> datanode_utilities.001.jpg, dn_web_ui_mockup.jpg
>
>
> At present, datanode web UI doesn't have much information except for node
> name and port. Propose to add more information similar to namenode UI,
> including,
> * Static info (version, block pool and cluster ID)
> * Running state (active, decommissioning, decommissioned or lost etc)
> * Summary (blocks, capacity, storage etc)
> * Utilities (logs)
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