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]>
