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https://issues.apache.org/jira/browse/HDFS-13522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17189824#comment-17189824
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Íñigo Goiri commented on HDFS-13522:
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[~csun], [~crh], any updates on this? Did you move this forward?
> Support observer node from Router-Based Federation
> --------------------------------------------------
>
> Key: HDFS-13522
> URL: https://issues.apache.org/jira/browse/HDFS-13522
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: federation, namenode
> Reporter: Erik Krogen
> Assignee: Chao Sun
> Priority: Major
> Attachments: HDFS-13522.001.patch, RBF_ Observer support.pdf,
> Router+Observer RPC clogging.png, ShortTerm-Routers+Observer.png
>
>
> Changes will need to occur to the router to support the new observer node.
> One such change will be to make the router understand the observer state,
> e.g. {{FederationNamenodeServiceState}}.
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