This is even more mysterious now that I've discovered it's only a problem for 
ME and only when I'm logged in to Chrome. Safari and Edge work, and so does a 
Chrome private browsing window. Nonetheless, there seems to be a fix on the 
server side, if I'm correct.

After entering credentials on the logon screen (internalsso), I get a "400 Bad 
Request" error in the browser and I'm seeing these errors in 
/var/log/httpd/error_log:
[Wed Nov 19 14:37:04.988719 2025] [proxy_ajp:error] [pid 2364:tid 2392] 
AH03229: ajp_msg_append_cvt_string(): BufferOverflowException 4 8159

I found this post on the list
https://lists.ovirt.org/archives/list/[email protected]/thread/K4MBGS3ZD4LK6SLRJGAUTIDHZIZOXDWZ/

and these in the Red Hat knowledge base (must log in to view)
https://access.redhat.com/solutions/1525873
https://access.redhat.com/solutions/732343 (for JBoss 6)
https://access.redhat.com/solutions/6166212 (For JBoss 7, which I think oVirt 
4.5 uses)

The solution is to change a couple of settings in httpd.conf (or in 
httpd.conf.d):
LimitRequestFieldsize 65536
ProxyIOBufferSize 65536

There's a corresponding setting that needs to be changed in JBoss/Wildfly.

I think the standalone.xml file referred to in the KB articles is in
/usr/share/ovirt-engine-wildfly/standalone/configuration
Can someone confirm?

Also, is oVirt 4.5 (4.5.7-0.master.20251029141850.git6e58a03353.el9, 
specifically) using 6 or 7? Running ./jboss-cli.sh from 
/usr/share/ovirt-engine-wildfly/bin
fails with the error
Failed to connect to the controller: The controller is not available at 
localhost:9990: java.net.ConnectException: WFLYPRT0053: Could not connect to 
remote+http://localhost:9990. The connection failed: WFLYPRT0053: Could not 
connect to remote+http://localhost:9990. The connection failed: Connection 
refused

Is it listening on another port?

I tried
./jboss-cli.sh --version
but it wants to be connected
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