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https://issues.apache.org/jira/browse/HDFS-12333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16143173#comment-16143173
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Mukul Kumar Singh commented on HDFS-12333:
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Thanks for the patch [~elek], the patch looks really good.
However I was thinking if Ozone/SCM related info should only be displayed only
if Ozone is enabled?
This will ensure that the new interface will be consistent with the earlier
version in case ozone is disabled.
> Ozone: Extend Datanode web interface with SCM information
> ---------------------------------------------------------
>
> Key: HDFS-12333
> URL: https://issues.apache.org/jira/browse/HDFS-12333
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: HDFS-7240
> Affects Versions: HDFS-7240
> Reporter: Elek, Marton
> Assignee: Elek, Marton
> Attachments: HDFS-12333-HDFS-7240.001.patch,
> HDFS-12333-HDFS-7240.002.patch, ozonedatanode.png
>
>
> Current Datanode web interface shows information about the Block Pools:
> * Namenode Address
> * BlockPoolID
> * ActorState
> * Last Heartbeat
> * Last Block Report
> I propose in this jira to add the same information about the SCM (if the
> datanode is a member of ozone cluster). It would help to check the current
> state of the datanode (is ozone enabled? Is there an active connection to the
> SCM?)
> 1. Suggested information to display:
> * SCM hostname/address
> * EndpointState (GETVERSION, REGISTER, HEARTBEAT, SHUTDOWN)
> * version (from the VersoinResponse)
> * missedCount
> They could be displayed with publishing JMX information from
> SCMConnectionManager or EndpointStateMachines.
> 2. StorageLocationReport[] from the ContainerLocationManager also should be
> exposed over JMX and displayed on the web interface:
> * id
> * failed (bool)
> * capacity
> * scmUsed
> * remaining
> 3. Possible report of Last Heartbeat/Container report should be investigated.
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