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From "Elek, Marton (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-12333) Ozone: Extend Datanode web interface with SCM information
Date Fri, 25 Aug 2017 11:19:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16141497#comment-16141497
] 

Elek, Marton edited comment on HDFS-12333 at 8/25/17 11:18 AM:
---------------------------------------------------------------

Screenshot of the web interface is included.


was (Author: elek):
Screenshot of the web interface.

> 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, 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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