Hello, I have a problem with SSO since Spark 2.7.x prerelease (build 66x). Openfire server 3.9.1 3.9.2 works fine with Spark 2.6.3 and worked with 2.6.2 and 2.6.1.
But when I change client to Spark 2.7.0 or 2.7.1 on the same machine - couldn't connect to Openfire server via SSO. Plain password login has no issues, only SSO. Account (kerberos realm) detection seems correct. I've tried cleaning settings (removing %APPDATA%\Spark), various SSO modes - krb5.ini, DNS and Manual specification, but no luck.
Because of that I'm delaying upgrade from Spark 2.6.x and Openfire 3.9.x to 2.7.x and 3.10.x respectively. Any suggestions?