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https://issues.apache.org/jira/browse/KNOX-934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16006686#comment-16006686
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Jeffrey E Rodriguez commented on KNOX-934:
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Hi Mohammad. We added Yarn UI HA support through Knox-719. I think what we are
saying is that is the active node is firewalled (Knox dispatcher can't access
active node) then UI is not accessible.
I would think that a requirement for this to work would be for Knox gateway to
have access t active node. Am i wrong on this? or I am missing something.
Would suggestion changing the title "Support UI HA for resource manager" to a
more specific subject.
Thanks.
Jeff
> Support UI HA for resource manager
> -----------------------------------
>
> Key: KNOX-934
> URL: https://issues.apache.org/jira/browse/KNOX-934
> Project: Apache Knox
> Issue Type: New Feature
> Reporter: Mohammad Kamrul Islam
> Assignee: Mohammad Kamrul Islam
>
> Looks like, Knox doesn't support YARN UI HA. For example, if there is two RM
> instances running, any access to RM UI redirects ( code 307) to the active
> RM UI.
> This redirect doesn't work when the actual UI is running behind a firewall
> (because primary UI is not directly accessible).
> However, if KNOX hits the active UI directly - there will be no forwarding
> and UI is displayed properly.
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