JBoss EJB3 SLSB Failover
Hi,
I'm running two vanilla instances of on the same machines using the "all" configuration. I have a webapp that looks up the SLSB. This works when the TestEJB.jar and TestWebApp.war is on the same node. When I delete the TestEJB.jar from the node where TestWebApp.war is deployed...I expect TestWebApp.war to lookup the TestSessionBean(in TestEJB.jar on both nodes) to be looked up via HAJNDI.
This doesn't work though...plus the TestSessionBean is not listed in the HAJNDI section using JNDIView in the jmx-console? Am I missing something here - as I figure this should work out of the box using JBoss 4.2.0.GA?
My code is as follows:
TestSessionBean implementation
package com.xxx.test.ejb3.sessionbean;
import org.jboss.annotation.ejb.Clustered;
import org.jboss.annotation.ejb.LocalBinding;
import org.jboss.annotation.ejb.RemoteBinding;
import org.jboss.ha.framework.interfaces.RoundRobin;
import org.apache.log4j.Logger;
import javax.ejb.Stateless;
import javax.ejb.Local;
import javax.ejb.Remote;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import com.xxx.test.ejb3.entityejb.TestEntity;
import java.util.List;
@Remote(TestSession.class)
@Local(TestSession.class)
@Stateless(name = "TestSessionEJB")
@Clustered(loadBalancePolicy = RoundRobin.class)
public class TestSessionBean implements TestSession {
private static final Logger log = Logger.getLogger(TestSession.class);
@PersistenceContext
protected EntityManager entityManager;
public TestSessionBean() {
}
public void testMethod() {
log.info("testMethod() called....");
}
public void persistEntity() {
log.info("persisteEntity() called....");
TestEntity testEntity = new TestEntity();
testEntity.setName("tom");
testEntity.setSurname("jones");
entityManager.persist(testEntity);
}
@SuppressWarnings("unchecked")
public TestEntity[] getPersistedEntities() {
Query query = entityManager.createQuery("select t from TestEntity t");
List<TestEntity> testEntities = query.getResultList();
return testEntities.toArray(new TestEntity[testEntities.size()]);
}
}
TestSession interface:
package com.xxx.test.ejb3.sessionbean;
import com.xxx.test.ejb3.entityejb.TestEntity;
import javax.ejb.Remote;
import javax.ejb.Local;
import java.util.List;
public interface TestSession {
public void testMethod();
public void persistEntity();
public TestEntity[] getPersistedEntities();
}
jboss.xml:
<?xml version="1.0"?> <!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 4.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_4_0.dtd"> <jboss> </jboss>
Global JNDI Namespace:
+- TestSessionEJB (class: org.jnp.interfaces.NamingContext) | +- local (proxy: $Proxy95 implements interface com.xxx.test.ejb3.sessionbean.TestSession,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBLocalObject) | +- remote (proxy: $Proxy94 implements interface com.xxx.test.ejb3.sessionbean.TestSession,interface org.jboss.ejb3.JBossProxy)
The HA-JNDI Namespace is empty...
From the logs my cluster of 2 nodes seems to be up and running correctly...
23:58:19,580 INFO [DefaultPartition] New cluster view for partition DefaultPartition (id: 1, delta: 1) : [192.168.1.12:1099, 192.168.1.12:1199] 23:58:19,582 INFO [DefaultPartition] I am (192.168.1.12:1099) received membershipChanged event: 23:58:19,582 INFO [DefaultPartition] Dead members: 0 ([]) 23:58:19,582 INFO [DefaultPartition] New Members : 1 ([192.168.1.12:1199]) 23:58:19,582 INFO [DefaultPartition] All Members : 2 ([192.168.1.12:1099, 192.168.1.12:1199])
My client JSP to look up the Session Bean looks as follows:
<%@ page import="com.xxx.test.ejb3.entityejb.TestEntity" %>
<%@ page import="com.xxx.test.ejb3.sessionbean.TestSession" %>
<%@ page import="javax.naming.InitialContext" %>
<%@ page import="java.util.Properties" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
TestSession testSessionBean = null;
try {
Properties props = new Properties();
props.put(InitialContext.PROVIDER_URL, "192.168.1.12:1100");
props.put(InitialContext.URL_PKG_PREFIXES, "jboss.naming:org.jnp.interfaces");
props.put(InitialContext.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
InitialContext initialContext = new InitialContext(props);
testSessionBean = (TestSession) initialContext.lookup("TestSessionEJB/remote");
} catch (Exception e) {
e.printStackTrace();
}
if (request.getParameter("operation") != null && request.getParameter("operation").equalsIgnoreCase("method")) {
testSessionBean.testMethod();
} else
if (request.getParameter("operation") != null && request.getParameter("operation").equalsIgnoreCase("persist")) {
testSessionBean.persistEntity();
}
TestEntity[] testEntities = testSessionBean.getPersistedEntities();
%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>Simple test jsp page</title></head>
<body>
<a href="index.jsp?operation=method">dummy method</a>
<a href="index.jsp?operation=persist">persist</a><br>
<% for (int i=0;i<testEntities.length;i++) {%>
<%=testEntities.getId()%> <%=testEntities.getName()%> <%=testEntities.getSurname()%><br>
<%}%>
</body>
</html>
and finally, my stacktrace when I delete the TestEJB.jar on one server:
00:05:45,399 ERROR [STDERR] javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException: com.xxx.test.ejb3.sessionbean.TestSession (no security manager: RMI class loader disabled)] 00:05:45,399 ERROR [STDERR] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:728) 00:05:45,399 ERROR [STDERR] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587) 00:05:45,400 ERROR [STDERR] at javax.naming.InitialContext.lookup(InitialContext.java:351) 00:05:45,400 ERROR [STDERR] at org.apache.jsp.index_jsp._jspService(index_jsp.java:71) 00:05:45,400 ERROR [STDERR] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 00:05:45,400 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 00:05:45,400 ERROR [STDERR] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387) 00:05:45,400 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320) 00:05:45,400 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) 00:05:45,400 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 00:05:45,400 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 00:05:45,400 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 00:05:45,400 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 00:05:45,400 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 00:05:45,400 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 00:05:45,401 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) 00:05:45,401 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 00:05:45,401 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) 00:05:45,401 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) 00:05:45,401 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) 00:05:45,401 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) 00:05:45,401 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) 00:05:45,401 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 00:05:45,401 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) 00:05:45,401 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) 00:05:45,401 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) 00:05:45,401 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 00:05:45,401 ERROR [STDERR] at java.lang.Thread.run(Thread.java:613) 00:05:45,402 ERROR [STDERR] Caused by: java.lang.ClassNotFoundException: com.xxx.test.ejb3.sessionbean.TestSession (no security manager: RMI class loader disabled) 00:05:45,402 ERROR [STDERR] at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:531) 00:05:45,402 ERROR [STDERR] at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628) 00:05:45,402 ERROR [STDERR] at org.jboss.system.JBossRMIClassLoader.loadProxyClass(JBossRMIClassLoader.java:82) 00:05:45,402 ERROR [STDERR] at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294) 00:05:45,402 ERROR [STDERR] at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:238) 00:05:45,402 ERROR [STDERR] at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1500) 00:05:45,402 ERROR [STDERR] at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1463) 00:05:45,402 ERROR [STDERR] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699) 00:05:45,402 ERROR [STDERR] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) 00:05:45,403 ERROR [STDERR] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) 00:05:45,403 ERROR [STDERR] at java.rmi.MarshalledObject.get(MarshalledObject.java:135) 00:05:45,403 ERROR [STDERR] at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72) 00:05:45,403 ERROR [STDERR] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:652) 00:05:45,403 ERROR [STDERR] ... 27 more 00:05:45,404 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception java.lang.NullPointerException at org.apache.jsp.index_jsp._jspService(index_jsp.java:76) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:613)
