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https://issues.apache.org/jira/browse/HDFS-4924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13770054#comment-13770054
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Joep Rottinghuis commented on HDFS-4924:
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Marking as blocker. Current patch is definitely needed (one needs to be able to
see which NN is the active one, particularly since drilling down into browsing
filesystem will otherwise fail 3 levels down).
Comments from [~cnauroth] are fair. We'll take a look at those and adjust
accordingly.
> Show NameNode state on dfsclusterhealth page
> --------------------------------------------
>
> Key: HDFS-4924
> URL: https://issues.apache.org/jira/browse/HDFS-4924
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: federation
> Affects Versions: 2.1.0-beta
> Reporter: Lohit Vijayarenu
> Assignee: Lohit Vijayarenu
> Priority: Blocker
> Attachments: HDFS-4924.trunk.1.patch
>
>
> dfsclusterhealth.jsp shows summary of multiple namenodes in cluster. With
> federation combined with HA it becomes difficult to quickly know the state of
> NameNodes in the cluster. It would be good to show if NameNode is
> Active/Standy on summary page.
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