https://community.cloudera.com/t5/Support-Questions/Http-Error-500-KerberosName-NoMatchingRule/m-p/195423#M157479 <P>Hi <A rel="user" href="https://community.cloudera.com/users/322/rlevas.html" nodeid="322">@Robert Levas</A> <BR />We added the rule :</P><PRE>RULE:[1:$1@$0](.*@EXAMPLE.COM)s/@.*//</PRE><P>And now I am able to successfully work on the terminal :</P><PRE>$ hadoop org.apache.hadoop.security.HadoopKerberosName user@EXAMPLE.COM Name: user@EXAMPLE.COM to user</PRE><P>But I still can't access my Solr UI.</P><P>When I go to the UI, I get a pop-up asking me for authentication, I type my username and password and I still get :</P><PRE>HTTP ERROR 500 Problem accessing /solr/. Reason: Server Error Caused by: org.apache.solr.common.SolrException: Error during request authentication, at org.apache.solr.servlet.SolrDispatchFilter.authenticateRequest(SolrDispatchFilter.java:319) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:222) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) at org.eclipse.jetty.server.Server.handle(Server.java:499) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.hadoop.security.authentication.util.KerberosName$NoMatchingRule: No rules applied to user@EXAMPLE.COM at org.apache.hadoop.security.authentication.util.KerberosName.getShortName(KerberosName.java:389) at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:378) at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:348) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.authenticate(KerberosAuthenticationHandler.java:348) at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:507) at org.apache.solr.security.KerberosFilter.doFilter(KerberosFilter.java:46) at org.apache.solr.security.KerberosPlugin.doAuthenticate(KerberosPlugin.java:144) at org.apache.solr.servlet.SolrDispatchFilter.authenticateRequest(SolrDispatchFilter.java:311) ... 22 more Caused by: org.apache.hadoop.security.authentication.util.KerberosName$NoMatchingRule: No rules applied to user@EXAMPLE.COM</PRE> Tue, 06 Feb 2018 17:53:21 GMT julian_blin 2018-02-06T17:53:21Z