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https://issues.apache.org/jira/browse/HDFS-9391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15768854#comment-15768854
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Manoj Govindassamy commented on HDFS-9391:
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Thanks for the review [~eddyxu].
With the addition of "adminState" attribute, explicit state attr like 
"decommissioned" becomes redundant. So, removed it. But, you are right, it 
could be incompatible with the removal of an existing attr. May be, I should 
retain the existing "decommissioned" attr as is and also add the additional 
"adminState". In a way, we want to deprecate "decommissioned" attr as 
"adminState" covers all. Any advice on right way of doing this ? 

> Update webUI/JMX to display maintenance state info
> --------------------------------------------------
>
>                 Key: HDFS-9391
>                 URL: https://issues.apache.org/jira/browse/HDFS-9391
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Ming Ma
>            Assignee: Manoj Govindassamy
>         Attachments: HDFS-9391-MaintenanceMode-WebUI.pdf, HDFS-9391.01.patch, 
> HDFS-9391.02.patch, Maintenance webUI.png
>
>




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