Problems clustering a Weblogic Stateful EJB 3.0

Question

Hello!
I'm developing a Stateful EJB 3.0 with clustering configuration for weblogic 11G. My client gets a reference to the RemoteInterface, invoke a method and it's working. Then I shutdown the server where the EJB was created and the client reinvoke (using the same reference) a method and get's this error:
javax.ejb.EJBException: Exception waiting for response; nested exception is:
     java.io.EOFException: Connection closed by peer; nested exception is: java.io.EOFException: Connection closed by peer
java.io.EOFException: Connection closed by peer
     at weblogic.iiop.EndPointImpl.handleCloseConnection(EndPointImpl.java:602)
     at weblogic.iiop.EndPointImpl.processMessage(EndPointImpl.java:545)
     at weblogic.iiop.EndPointImpl.handleMessage(EndPointImpl.java:500)
     at weblogic.iiop.EndPointImpl.dispatch(EndPointImpl.java:324)
     at weblogic.iiop.ConnectionManager.dispatch(ConnectionManager.java:126)
     at weblogic.iiop.MuxableSocketIIOP.dispatch(MuxableSocketIIOP.java:302)
     at weblogic.socket.BaseAbstractMuxableSocket.dispatch(BaseAbstractMuxableSocket.java:298)
     at weblogic.socket.SocketMuxer.readReadySocketOnce(SocketMuxer.java:915)
     at weblogic.socket.SocketMuxer.readReadySocket(SocketMuxer.java:844)
     at weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:335)
     at weblogic.socket.SocketReaderRequest.run(SocketReaderRequest.java:29)
     at weblogic.work.ExecuteRequestAdapter.execute(ExecuteRequestAdapter.java:21)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:145)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:117)
javax.ejb.EJBException: Exception waiting for response; nested exception is:
     java.io.EOFException: Connection closed by peer; nested exception is: java.io.EOFException: Connection closed by peer
     at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.unwrapRemoteException(RemoteBusinessIntfProxy.java:109)
     at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:91)
     at $Proxy0.getMas(Unknown Source)
     at com.ibermatica.pruebas.pruebaEJB30SF.getPrueba(pruebaEJB30SF.java:79)
     at com.ibermatica.pruebas.pruebaEJB30SF.main(pruebaEJB30SF.java:26)
Caused by: java.io.EOFException: Connection closed by peer
     at weblogic.iiop.EndPointImpl.handleCloseConnection(EndPointImpl.java:602)
     at weblogic.iiop.EndPointImpl.processMessage(EndPointImpl.java:545)
     at weblogic.iiop.EndPointImpl.handleMessage(EndPointImpl.java:500)
     at weblogic.iiop.EndPointImpl.dispatch(EndPointImpl.java:324)
     at weblogic.iiop.ConnectionManager.dispatch(ConnectionManager.java:126)
     at weblogic.iiop.MuxableSocketIIOP.dispatch(MuxableSocketIIOP.java:302)
     at weblogic.socket.BaseAbstractMuxableSocket.dispatch(BaseAbstractMuxableSocket.java:298)
     at weblogic.socket.SocketMuxer.readReadySocketOnce(SocketMuxer.java:915)
     at weblogic.socket.SocketMuxer.readReadySocket(SocketMuxer.java:844)
     at weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:335)
     at weblogic.socket.SocketReaderRequest.run(SocketReaderRequest.java:29)
     at weblogic.work.ExecuteRequestAdapter.execute(ExecuteRequestAdapter.java:21)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:145)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:117)
The description of my test is:
+I have a Weblogic cluster (c1, c2)
+I have developed an 3.0 Stateful EJB (configurated for replication)
+My client  gets an EJB Instance from c1 and invoke one method (debugging)
+I stops my client
+I shutdown my server (c1)
+My client invokes another EJB method end gets the error described before.
It seems like the Server don't replicate the EJB.
My replicatión ejb deployment descriptor is (weblogic.xml):
<weblogic-enterprise-bean>
<ejb-name>Session30EJBSFBean</ejb-name>
<stateful-session-descriptor>
<stateful-session-clustering>
<!--<home-is-clusterable>true</home-is-clusterable>
<home-load-algorithm>random</home-load-algorithm>
<replication-type>InMemory</replication-type>-->
<use-serverside-stubs>true</use-serverside-stubs>
<replication-type>InMemory</replication-type>
</stateful-session-clustering>
</stateful-session-descriptor>
</weblogic-enterprise-bean>
My ejb bean class is:
@Stateful(name = "Session30EJBSF", mappedName = "clustering30-cluster301-Session30EJBSF")
@Remote
public class Session30EJBSFBean implements Session30EJBSF {
private SessionContext _context;
private int contador= 0;
private String user="";
public Session30EJBSFBean() {
public void inicio(String user){
this.user= user;
contador=0;
public void mas(){
contador++;
public int getMas(){
return contador;
public String getUser(){
return this.user;
My Remote EJB:
import javax.ejb.Remote;
@Remote
public interface Session30EJBSF {
public void inicio(String user);
public void mas();
public int getMas();
public String getUser();
My client:
public class pruebaEJB30SF {
public pruebaEJB30SF() {
super();
public static void main(String[] args) {
pruebaEJB30SF pruebaEJB30SF = new pruebaEJB30SF();
try {
pruebaEJB30SF.getPrueba();
} catch (Exception e) {
e.printStackTrace();
public Context getInitialContext() throws NamingException {
//String url="t3://c1:8001";
String url="iiop://c1:8001";
String user="any";
String password="any";
Properties p= new Properties();
//p.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.T3InitialContextFactory");
p.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
p.put(Context.PROVIDER_URL,url);
p.put(Context.SECURITY_PRINCIPAL,user);
p.put(Context.SECURITY_CREDENTIALS,password);
return new InitialContext(p);
public void getPrueba() throws NamingException, RemoteException,
CreateException {
// <PROFILING>
Context ctx= getInitialContext();
//2.0 Stateful
Object ref= ctx.lookup("clustering30-cluster301-Session30EJBSF#.Session30EJBSF");
Session30EJBSF home= (Session30EJBSF)PortableRemoteObject.narrow(ref, Session30EJBSF.class);
Session30EJBSF ejb=home;
ejb.inicio("User1");
ejb.mas();
System.out.println( ejb.getMas());// I put here a breakpoint and I shutdown the serer c1
ejb.mas();
System.out.println( ejb.getMas());
ejb.mas();
System.out.println( ejb.getMas());//Caida
ejb.mas();
System.out.println( ejb.getMas());
I have developed a EJB 2.1 and a EJB 2.1 client and it's working. The most important change betwin ejb 3.0 client and my 2.1 client is that in 2.1 I use the getHandle method and a Home, not a Remote.
Please, can anyone help me.
Thanks.

Answer 1

Hi,
Please change your Client Code as below: URL must be pointing to the comma Separated address of your ManagedServers Address/Port which are part of Cluster like For Example Suppose you have 2 managedServers in ClusterA ..... t3://MS1Host:8003,MS2Host:8005
public Context getInitialContext() throws NamingException {
<strike><font color=red>String url="t3://c1:8001";</font></strike>
<b>String url="t3://ManagedServer1HostName:port,ManagedServer2HostName:port";</b>
String user="any";
String password="any";
Properties p= new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
p.put(Context.PROVIDER_URL,url);
p.put(Context.SECURITY_PRINCIPAL,user);
p.put(Context.SECURITY_CREDENTIALS,password);
return new InitialContext(p);
Thanks
Jay SenSharma
http://weblogic-wonders.com/weblogic (WebLogic Wonders Are here)