Hi, I work for CGI and have been looking at Knox recently for a project. I've been working with John McParland who has contributed to Knox with Solr support.
I'm currently trying to get Knox and Avatica working together. I've followed the instructions on this JIRA ticket (https://issues.apache.org/jira/browse/KNOX-844) but I've encountered an error. When doing the following: ``` $ curl -k -u guest:guest-password -X GET "https://cloudapp.azure.com:8443/gateway/sandbox/avatica/"; <HTML> <HEAD> <TITLE>Error 404 - Not Found</TITLE> <BODY> <H2>Error 404 - Not Found.</H2> No context on this server matched or handled this request.<BR>Contexts known to this server are: <ul></ul><hr><a href="http://eclipse.org/jetty";><img border= 0 src="/favicon.ico"/></a> <a href="http://eclipse.org/jetty";>Powered by Jetty:// Java Web Server</a><hr/> </BODY> </HTML> ``` The 404 makes sense since navigating to http://cloudapp.azure.com:8765/ shows the same 404 message. And looking in the Knox gateway.log file we see Knox has authenticated fine: ``` 2017-02-15 11:20:02,681 INFO hadoop.gateway (KnoxLdapRealm.java:getUserDn(691)) - Computed userDn: uid=guest,ou=people,dc=hadoop,dc=apache,dc=org using dnTemplate for principal: guest ``` However, when using the Avatica parameters with those semicolons it falls over: ``` $ curl -k -u guest:guest-password -X GET "https://cloudapp.azure.com:8443/gateway/sandbox/avatica/;avatica_user=guest;avatica_password=guest-password;authentication=BASIC"; <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <title>Error 500 Server Error</title> </head> <body><h2>HTTP ERROR 500</h2> <p>Problem accessing /gateway/sandbox/avatica/;avatica_user=guest;avatica_password=guest-password;authentication=BASIC. Reason: <pre> Server Error</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/> </body> </html> ``` And the gateway.log now: ``` 2017-02-15 11:32:32,281 INFO hadoop.gateway (KnoxLdapRealm.java:getUserDn(691)) - Computed userDn: uid=guest,ou=people,dc=hadoop,dc=apache,dc=org using dnTemplate for principal: guest 2017-02-15 11:32:32,291 ERROR hadoop.gateway (UrlRewriteProcessor.java:rewrite(169)) - Failed to rewrite URL: https://cloudapp.azure.com:8443/gateway/sandbox/avatica/;avatica_user=username;avatica_password=password;authentication=BASIC, direction: IN via rule: AVATICA/avatica/inbound/root, status: FAILURE 2017-02-15 11:32:32,292 ERROR hadoop.gateway (UrlRewriteProcessor.java:rewrite(169)) - Failed to rewrite URL: https://cloudapp.azure.com:8443/gateway/sandbox/avatica/;avatica_user=username;avatica_password=password;authentication=BASIC, direction: IN via rule: AVATICA/avatica/inbound/root, status: FAILURE 2017-02-15 11:32:32,311 WARN hadoop.gateway (DefaultDispatch.java:executeOutboundRequest(146)) - Connection exception dispatching request: org.apache.http.client.ClientProtocolException org.apache.http.client.ClientProtocolException at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55) at org.apache.hadoop.gateway.dispatch.DefaultDispatch.executeOutboundRequest(DefaultDispatch.java:129) at org.apache.hadoop.gateway.dispatch.DefaultDispatch.executeRequest(DefaultDispatch.java:115) at org.apache.hadoop.gateway.dispatch.DefaultDispatch.doGet(DefaultDispatch.java:277) at org.apache.hadoop.gateway.dispatch.GatewayDispatchFilter$GetAdapter.doMethod(GatewayDispatchFilter.java:123) at org.apache.hadoop.gateway.dispatch.GatewayDispatchFilter.doFilter(GatewayDispatchFilter.java:106) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteServletFilter.doFilter(UrlRewriteServletFilter.java:60) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain$1.run(ShiroSubjectIdentityAdapter.java:91) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain$1.run(ShiroSubjectIdentityAdapter.java:88) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain.call(ShiroSubjectIdentityAdapter.java:138) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain.call(ShiroSubjectIdentityAdapter.java:75) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter.doFilter(ShiroSubjectIdentityAdapter.java:72) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.ResponseCookieFilter.doFilter(ResponseCookieFilter.java:50) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.XForwardedHeaderFilter.doFilter(XForwardedHeaderFilter.java:30) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:139) at org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:91) at org.apache.hadoop.gateway.services.metrics.impl.instr.InstrumentedGatewayFilter.doFilter(InstrumentedGatewayFilter.java:70) at org.apache.hadoop.gateway.GatewayServlet.service(GatewayServlet.java:141) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587) 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.HandlerWrapper.handle(HandlerWrapper.java:97) at org.apache.hadoop.gateway.trace.TraceHandler.handle(TraceHandler.java:51) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) at org.apache.hadoop.gateway.filter.CorrelationHandler.handle(CorrelationHandler.java:39) at org.eclipse.jetty.servlets.gzip.GzipHandler.handle(GzipHandler.java:529) 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:311) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) 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:745) Caused by: org.apache.http.ProtocolException: Target host is not specified at org.apache.http.impl.conn.DefaultRoutePlanner.determineRoute(DefaultRoutePlanner.java:70) at org.apache.http.impl.client.InternalHttpClient.determineRoute(InternalHttpClient.java:124) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:183) ... 78 more 2017-02-15 11:32:32,312 ERROR hadoop.gateway (AbstractGatewayFilter.java:doFilter(63)) - Failed to execute filter: java.io.IOException: Service connectivity error. 2017-02-15 11:32:32,313 ERROR hadoop.gateway (AbstractGatewayFilter.java:doFilter(63)) - Failed to execute filter: java.io.IOException: Service connectivity error. 2017-02-15 11:32:32,320 ERROR hadoop.gateway (AbstractGatewayFilter.java:doFilter(66)) - Failed to execute filter: javax.servlet.ServletException: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. 2017-02-15 11:32:32,322 ERROR hadoop.gateway (AbstractGatewayFilter.java:doFilter(66)) - Failed to execute filter: javax.servlet.ServletException: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. 2017-02-15 11:32:32,322 ERROR hadoop.gateway (GatewayFilter.java:doFilter(145)) - Gateway processing failed: javax.servlet.ServletException: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. javax.servlet.ServletException: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. at org.apache.shiro.web.servlet.AdviceFilter.cleanup(AdviceFilter.java:196) at org.apache.shiro.web.filter.authc.AuthenticatingFilter.cleanup(AuthenticatingFilter.java:155) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:148) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.ResponseCookieFilter.doFilter(ResponseCookieFilter.java:50) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.XForwardedHeaderFilter.doFilter(XForwardedHeaderFilter.java:30) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:139) at org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:91) at org.apache.hadoop.gateway.services.metrics.impl.instr.InstrumentedGatewayFilter.doFilter(InstrumentedGatewayFilter.java:70) at org.apache.hadoop.gateway.GatewayServlet.service(GatewayServlet.java:141) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587) 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.HandlerWrapper.handle(HandlerWrapper.java:97) at org.apache.hadoop.gateway.trace.TraceHandler.handle(TraceHandler.java:51) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) at org.apache.hadoop.gateway.filter.CorrelationHandler.handle(CorrelationHandler.java:39) at org.eclipse.jetty.servlets.gzip.GzipHandler.handle(GzipHandler.java:529) 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:311) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:385) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter.doFilter(ShiroSubjectIdentityAdapter.java:72) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) ... 48 more Caused by: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain.call(ShiroSubjectIdentityAdapter.java:138) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain.call(ShiroSubjectIdentityAdapter.java:75) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) ... 54 more Caused by: java.io.IOException: Service connectivity error. at org.apache.hadoop.gateway.dispatch.DefaultDispatch.executeOutboundRequest(DefaultDispatch.java:147) at org.apache.hadoop.gateway.dispatch.DefaultDispatch.executeRequest(DefaultDispatch.java:115) at org.apache.hadoop.gateway.dispatch.DefaultDispatch.doGet(DefaultDispatch.java:277) at org.apache.hadoop.gateway.dispatch.GatewayDispatchFilter$GetAdapter.doMethod(GatewayDispatchFilter.java:123) at org.apache.hadoop.gateway.dispatch.GatewayDispatchFilter.doFilter(GatewayDispatchFilter.java:106) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteServletFilter.doFilter(UrlRewriteServletFilter.java:60) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain$1.run(ShiroSubjectIdentityAdapter.java:91) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain$1.run(ShiroSubjectIdentityAdapter.java:88) ... 61 more 2017-02-15 11:32:32,339 ERROR hadoop.gateway (GatewayServlet.java:service(146)) - Gateway processing failed: javax.servlet.ServletException: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. javax.servlet.ServletException: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. at org.apache.shiro.web.servlet.AdviceFilter.cleanup(AdviceFilter.java:196) at org.apache.shiro.web.filter.authc.AuthenticatingFilter.cleanup(AuthenticatingFilter.java:155) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:148) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.ResponseCookieFilter.doFilter(ResponseCookieFilter.java:50) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.XForwardedHeaderFilter.doFilter(XForwardedHeaderFilter.java:30) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:139) at org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:91) at org.apache.hadoop.gateway.services.metrics.impl.instr.InstrumentedGatewayFilter.doFilter(InstrumentedGatewayFilter.java:70) at org.apache.hadoop.gateway.GatewayServlet.service(GatewayServlet.java:141) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587) 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.HandlerWrapper.handle(HandlerWrapper.java:97) at org.apache.hadoop.gateway.trace.TraceHandler.handle(TraceHandler.java:51) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) at org.apache.hadoop.gateway.filter.CorrelationHandler.handle(CorrelationHandler.java:39) at org.eclipse.jetty.servlets.gzip.GzipHandler.handle(GzipHandler.java:529) 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:311) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.shiro.subject.ExecutionException: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:385) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter.doFilter(ShiroSubjectIdentityAdapter.java:72) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) ... 48 more Caused by: java.security.PrivilegedActionException: java.io.IOException: Service connectivity error. at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain.call(ShiroSubjectIdentityAdapter.java:138) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain.call(ShiroSubjectIdentityAdapter.java:75) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) ... 54 more Caused by: java.io.IOException: Service connectivity error. at org.apache.hadoop.gateway.dispatch.DefaultDispatch.executeOutboundRequest(DefaultDispatch.java:147) at org.apache.hadoop.gateway.dispatch.DefaultDispatch.executeRequest(DefaultDispatch.java:115) at org.apache.hadoop.gateway.dispatch.DefaultDispatch.doGet(DefaultDispatch.java:277) at org.apache.hadoop.gateway.dispatch.GatewayDispatchFilter$GetAdapter.doMethod(GatewayDispatchFilter.java:123) at org.apache.hadoop.gateway.dispatch.GatewayDispatchFilter.doFilter(GatewayDispatchFilter.java:106) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteServletFilter.doFilter(UrlRewriteServletFilter.java:60) at org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61) at org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332) at org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain$1.run(ShiroSubjectIdentityAdapter.java:91) at org.apache.hadoop.gateway.filter.ShiroSubjectIdentityAdapter$CallableChain$1.run(ShiroSubjectIdentityAdapter.java:88) ... 61 more ``` I believe the important part is: ``` 2017-02-15 11:40:18,461 ERROR hadoop.gateway (UrlRewriteProcessor.java:rewrite(169)) - Failed to rewrite URL: https://hdp24sandbox-v2.ukwest.cloudapp.azure.com:8443/gateway/sandbox/avatica;avatica_user=username;avatica_password=password;authentication=BASIC, direction: IN via rule: AVATICA/avatica/inbound/root, status: FAILURE ``` Which reveals that the URL is not matching the route properly. I've modified the rewrite.xml file for Avatica in several different ways but I cannot get Knox to accept semicolons in the URL. Any help would be appreciated. Kind regards, Ben Jovanic
