[jboss-user] [JNDI/Naming/Network] - How to Access EJB over HTTP in remote machine?

ritesh163 do-not-reply at jboss.com
Mon Jun 23 02:42:53 EDT 2008


hello everybody,

I am having problem to access EJB over HTTP in remote machine. I have to access EJB which is running in remote server. In between two EJBs, there is routing IP as these are running in different network connected by radio link. I am given with routing IP to connect with remote EJB by my client, that routing IP will map to remote EJB server. 
Remote EJB server is running in [internal IP] and I have to connect remote EJB with [Routing IP or External IP]. Can I access this remote EJB over HTTP?

I am using JBoss-4.0.4.GA and  Java version: 1.5.0_15. OS: RHEL 4. 

If I access the web page through my server by "http://[routing IP]:[port]" then welcome screen of Jboss is displayed but through application, the connection is not found.

The code of client's remote machine for http-invoker.sar\META-INF\jboss-service.xml is given below:

  | <server>
  | 
  |   <!-- The HTTP invoker service configration
  |   -->
  |   <mbean code="org.jboss.invocation.http.server.HttpInvoker"
  |     name="jboss:service=invoker,type=http">
  |      <!-- Use a URL of the form http://<hostname>:8080/invoker/EJBInvokerServlet
  |       where <hostname> is InetAddress.getHostname value on which the server
  |       is running. 
  |       
  |       -->
  |      
  |      <attribute name="InvokerURL">http://[Internal IP]:[port]/invoker/EJBInvokerServlet</attribute>
  |      <attribute name="InvokerURLPrefix">http://</attribute>
  |      <attribute name="InvokerURLSuffix">:8080/invoker/EJBInvokerServlet</attribute>
  |      <attribute name="UseHostName">false</attribute>
  |   </mbean>
  | 
  |    <!-- Expose the Naming service interface via HTTP -->
  |    <mbean code="org.jboss.invocation.http.server.HttpProxyFactory"
  |       name="jboss:service=invoker,type=http,target=Naming">
  |       <!-- The Naming service we are proxying -->
  |       <attribute name="InvokerName">jboss:service=Naming</attribute>
  |       <!-- Compose the invoker URL from the cluster node address -->
  |       <!--
  |       -->
  |       <attribute name="InvokerURL">http://[Internal IP]:[port]/invoker/JMXInvokerServlet</attribute>
  |       <attribute name="InvokerURLPrefix">http://</attribute>
  |       <attribute name="InvokerURLSuffix">:8080/invoker/JMXInvokerServlet</attribute>
  |       <attribute name="UseHostName">false</attribute>
  |       
  |       <attribute name="ExportedInterface">org.jnp.interfaces.Naming</attribute>
  |       <attribute name="JndiName"></attribute>
  |       <attribute name="ClientInterceptors">
  |           <interceptors>
  |              <interceptor>org.jboss.proxy.ClientMethodInterceptor</interceptor>
  |              <interceptor>org.jboss.proxy.SecurityInterceptor</interceptor>
  |              <interceptor>org.jboss.naming.interceptors.ExceptionInterceptor</interceptor>
  |              <interceptor>org.jboss.invocation.InvokerInterceptor</interceptor>
  |           </interceptors>
  |       </attribute>
  |    </mbean>
  | 
  |    <!-- Expose the Naming service interface via clustered HTTP. This maps
  |    to the ReadOnlyJNDIFactory servlet URL
  |    -->
  |    <mbean code="org.jboss.invocation.http.server.HttpProxyFactory"
  |       name="jboss:service=invoker,type=http,target=Naming,readonly=true">
  |        <attribute name="InvokerURL">http://[Internal IP]:[port]/invoker/JMXInvokerServlet</attribute>
  |       <attribute name="InvokerName">jboss:service=Naming</attribute>
  |       <attribute name="InvokerURLPrefix">http://</attribute>
  |       <attribute name="InvokerURLSuffix">:8080/invoker/readonly/JMXInvokerServlet</attribute>
  |       <attribute name="UseHostName">false</attribute>
  |       <attribute name="ExportedInterface">org.jnp.interfaces.Naming</attribute>
  |       <attribute name="JndiName"></attribute>
  |       <attribute name="ClientInterceptors">
  |           <interceptors>
  |              <interceptor>org.jboss.proxy.ClientMethodInterceptor</interceptor>
  |              <interceptor>org.jboss.proxy.SecurityInterceptor</interceptor>
  |              <interceptor>org.jboss.naming.interceptors.ExceptionInterceptor</interceptor>
  |              <interceptor>org.jboss.invocation.InvokerInterceptor</interceptor>
  |           </interceptors>
  |       </attribute>
  |    </mbean>
  | </server>
  | 
  | 

Also connecting code of my server is given below:

  | props.put("java.naming.factory.initial", 
  | "org.jboss.naming.HttpNamingContextFactory");
  | props.put("java.naming.factory.url.pkgs",			"org.jboss.naming:org.jnp.interfaces");
  | props.put("java.naming.provider.url", "http://" + routingIP + ":"
  | 					+ port+ "/invoker/JNDIFactory");
  | 
  | InitialContext ic = new InitialContext(props);
  | Object objRef = ic.lookup("ejb/EjbTxn");
  | ejbTxnHome home = (ejbTxnHome) PortableRemoteObject.narrow(
  | 						objRef, ejbTxnHome.class);
  | ejbTxn = home.create();
  | 

Will I have to use invoker in my server also or not? Error that occur during connection is also given below:

  | 16:45:52,869 INFO  [STDOUT] Unable to lookup home: ejbTxnHome Operation failed
  | 16:45:52,869 ERROR [STDERR] javax.naming.CommunicationException: Operation failed [Root exception is java.rmi.ServerException: IOE; nested exception is: 
  |         java.net.ConnectException: Connection timed out]
  | 16:45:52,870 ERROR [STDERR]     at org.jboss.naming.interceptors.ExceptionInterceptor.invoke(ExceptionInterceptor.java:65)
  | 16:45:52,870 ERROR [STDERR]     at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70)
  | 16:45:52,870 ERROR [STDERR]     at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodInterceptor.java:74)
  | 16:45:52,870 ERROR [STDERR]     at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100)
  | 16:45:52,870 ERROR [STDERR]     at $Proxy65.lookup(Unknown Source)
  | 16:45:52,870 ERROR [STDERR]     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:625)
  | 16:45:52,870 ERROR [STDERR]     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
  | 16:45:52,870 ERROR [STDERR]     at javax.naming.InitialContext.lookup(InitialContext.java:351)
  | 16:45:52,870 ERROR [STDERR]     at org.apache.jsp.trans_005fdetail_jsp.getNpgTxn(trans_005fdetail_jsp.java:124)
  | 16:45:52,870 ERROR [STDERR]     at org.apache.jsp.trans_005fdetail_jsp._jspService(trans_005fdetail_jsp.java:722)
  | 16:45:52,870 ERROR [STDERR]     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
  | 16:45:52,871 ERROR [STDERR]     at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
  | 16:45:52,871 ERROR [STDERR]     at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 16:45:52,871 ERROR [STDERR]     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  | 16:45:52,871 ERROR [STDERR]     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  | 16:45:52,871 ERROR [STDERR]     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
  | 16:45:52,872 ERROR [STDERR]     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
  | 16:45:52,872 ERROR [STDERR]     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
  | 16:45:52,872 ERROR [STDERR]     at java.lang.Thread.run(Thread.java:595)
  | 16:45:52,873 ERROR [STDERR] Caused by: java.rmi.ServerException: IOE; nested exception is: 
  |         java.net.ConnectException: Connection timed out
  | 16:45:52,873 ERROR [STDERR]     at org.jboss.invocation.http.interfaces.HttpInvokerProxy.invoke(HttpInvokerProxy.java:133)
  | 16:45:52,873 ERROR [STDERR]     at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:331)
  | 16:45:52,873 ERROR [STDERR]     at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:194)
  | 16:45:52,873 ERROR [STDERR]     at org.jboss.naming.interceptors.ExceptionInterceptor.invoke(ExceptionInterceptor.java:57)
  | 16:45:52,873 ERROR [STDERR]     ... 35 more
  | 16:45:52,874 ERROR [STDERR] Caused by: java.net.ConnectException: Connection timed out
  | 16:45:52,874 ERROR [STDERR]     at java.net.PlainSocketImpl.socketConnect(Native Method)
  | 16:45:52,874 ERROR [STDERR]     at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
  | 16:45:52,874 ERROR [STDERR]     at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
  | 16:45:52,874 ERROR [STDERR]     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
  | 16:45:52,874 ERROR [STDERR]     at java.net.Socket.connect(Socket.java:520)
  | 16:45:52,874 ERROR [STDERR]     at java.net.Socket.connect(Socket.java:470)
  | 16:45:52,874 ERROR [STDERR]     at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
  | 16:45:52,874 ERROR [STDERR]     at sun.net.www.http.HttpClient.openServer(HttpClient.java:388)
  | 16:45:52,874 ERROR [STDERR]     at sun.net.www.http.HttpClient.openServer(HttpClient.java:523)
  | 16:45:52,874 ERROR [STDERR]     at sun.net.www.http.HttpClient.<init>(HttpClient.java:231)
  | 16:45:52,874 ERROR [STDERR]     at sun.net.www.http.HttpClient.New(HttpClient.java:304)
  | 16:45:52,874 ERROR [STDERR]     at sun.net.www.http.HttpClient.New(HttpClient.java:321)
  | 16:45:52,874 ERROR [STDERR]     at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:813)
  | 16:45:52,875 ERROR [STDERR]     at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:765)
  | 16:45:52,875 ERROR [STDERR]     at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:690)
  | 16:45:52,875 ERROR [STDERR]     at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:857)
  | 16:45:52,875 ERROR [STDERR]     at org.jboss.invocation.http.interfaces.Util.invoke(Util.java:163)
  | 16:45:52,875 ERROR [STDERR]     at org.jboss.invocation.http.interfaces.HttpInvokerProxy.invoke(HttpInvokerProxy.java:118)
  | 16:45:52,875 ERROR [STDERR]     ... 38 more
  | 

Could anyone tell me how to solve this problem ? If any suggest, please provide it to me.
Thank you.

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