Please remove me from this list *Heitor G. Peralles* *Direct**:* +55 21 979 661 187 <https://wa.me/5521979661187> *Email:* [email protected] *LinkedIn:* linkedin.com/in/heitorperalles <https://www.linkedin.com/in/heitorperalles/>
On Fri, Feb 6, 2026, 13:15 Oakley, Craig (NIH/NLM/NCBI) [C] via users < [email protected]> wrote: > I am trying to get Kerberos to work with Solr 9.2 > > After following the instructions of > https://solr.apache.org/guide/solr/9_2/deployment-guide/kerberos-authentication-plugin.html > the instance was not restarting, complaining > "org.apache.solr.common.SolrException: Error loading class > 'solr.KerberosPlugin'" and "ClassNotFoundException: solr.KerberosPlugin": I > searched under solr-9.2.1/modules for files which sounded as though they > might relate to Kerberos, and so added hadoop_auth to SOLR_MODULES: that > allows Solr to run without errors, but it does not allow me to do anything > (complaining "GSSException: Failure unspecified at GSS-API level (Mechanism > level: Invalid argument (400) - Cannot find key of appropriate type to > decrypt AP-REQ - AES256 CTS mode with HMAC SHA1-96)"; I then noticed a > separate section of the documentation for Hadoop Authentication with a > different security.json (and no requirements for specifying JAAS config > files nor keytab files): I tried that security.json (with & without JAAS > config files and/or keytab files), but continue to get similar GSSException > errors. > > Running "jar tvf" for all the jar files under all of solr-9.2.1, nothing > seems to have solr.KerberosPlugin; I don't know whether finding a solution > to this SolrException would solve the problem (without Hadoop) or if you > may have other suggestions > > Craig Oakley > Contract Worker (Other) > National Library of Medicine > National Institutes of Health > Building 45, room 6AS37D-57 > 301-496-6175 > [email protected]<mailto:[email protected]> > >
