NIFI GUI not showing users list -user not found

Question

noticed below error from users.log but nothing changed from nifi configs but started noticing this error

nifi-user.log:2020-07-02 12:16:13,857 INFO [NiFi Web Server-343673] o.a.n.w.a.c.ResourceNotFoundExceptionMapper org.apache.nifi.web.ResourceNotFoundException: Unable to find user with id '938eb61e-bbc4-383a-8475-aee80541b5a5'.. Returning Not Found response.

@MattWho

MattWho · Accepted Answer

@venkii

What version of NiFi are you running?

There are a set of bugs identified here that are likely related to the issue you described:
https://issues.apache.org/jira/browse/NIFI-5948
https://issues.apache.org/jira/browse/NIFI-6020
https://issues.apache.org/jira/browse/NIFI-6027

The good news is that these have all since been resolved.
I would recommend upgrading your NiFi to a version 1.10 or newer.
Or HDF 3.4.1.1 or newer
Or CFM 1.0.1 or newer

As a workaround, you could shutdown you NiFi and search the users.xml and authorizations.xml file for uuid "938eb61e-bbc4-383a-8475-aee80541b5a5" and remove all references to it. You would then need to make the exact same changes to the users.xml and authorizations.xml file on every other node in your NiFi cluster or copy the corrected files from one node to the other nodes.

Hope this helps,

Matt

venkii · Answer

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