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From "Manoj Govindassamy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9391) Update webUI/JMX to display maintenance state info
Date Fri, 06 Jan 2017 08:42:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15804018#comment-15804018

Manoj Govindassamy commented on HDFS-9391:

Got your point. Thats right. {{processBlocksInternal}} goes over block by block and gets {{NumberReplicas}}
for each of the block. The {{NumberReplicas}} thus returned will have both decommissioning
and maintenance check passing through for the case1 we discussed. Thanks a lot for detailed
discussion with example cases on this.

So, are we good with patch v02 w.r.t Decommissioning and EnteringMaintenance page stats ?

If you are ok with this, I will incorporate the other open review comments like the following
and upload patch v03
* leaving "decommissioned" attr in FSNameSystem#getDeadNodes() as is
* removal decommission check in {{getMaintenanceOnlyReplicas}}
* addition of {{dfshealth-node-down-maintenance}} in DN page

> 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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