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https://issues.apache.org/jira/browse/NIFI-9864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17542636#comment-17542636
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Nathan Gough commented on NIFI-9864:
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This issue was reported a while ago, sorry for getting to your question late.
Was this occurring when trying to log into multiple nodes in the cluster within
the same browser window? eg. logging into nifi1.com with username and password
and then logging into nifi2.com with username and password?
It's possible it has something to do with an invalid JWT cookie sticking around
in your browser which is no longer valid.
> Unable to access the apache-nifi UI with multiple nodes
> -------------------------------------------------------
>
> Key: NIFI-9864
> URL: https://issues.apache.org/jira/browse/NIFI-9864
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: nisha
> Priority: Major
>
> Hi
> I have setup of 3 apache-nifi nodes and used one zookeeper. I have integrated
> LDAP for authentication and authorization. With using 2 nodes of apache-nifi
> in the cluster, On apache-nifi UI I am getting "Unable to validate the
> access token" error.
> However login is works file using single node of nifi. Can you please help to
> resolve the issue.
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