hi Filip,
sorry to say but i've encountered another problem. Although
SimpleTcpReplicationManager does replicate my bean ok it doesnt seem to maintain the
session correctly.
To test the cluster im using round-robin DNS record. Whenever the client browser is
forced to switch from one tomcat instance to another a new session is getting created
and the old session is lost. I must say that the browser does maintain cookies ok but
amazingly JSESSIONID cookie value does not match session id of the newly created
session.
This only happens to SimpleTcpReplicationManager, DelataManager maintains sessions ok.
The version of tomcat i'm testing on is 5.0.19
Regards,
Vlad
-----Original Message-----
From: Filip Hanik (lists) [mailto:[EMAIL PROTECTED]
Sent: Wed 26/05/2004 22:12
To: Tomcat Users List
Cc:
Subject: RE: A cluster question
anytime, glad I could help!
Filip
-----Original Message-----
From: Ilyschenko, Vlad [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 26, 2004 2:56 PM
To: Tomcat Users List
Subject: RE: A cluster question
Thanks a lot Filip, SimpleTcpReplicationManager does indeed work the way i
need it!
Vlad
-----Original Message-----
From: Filip Hanik (lists) [mailto:[EMAIL PROTECTED]
Sent: Wed 5/26/2004 6:43 PM
To: Tomcat Users List
Cc:
Subject: RE: A cluster question
>Is there any other way to force replication apart from calling
session.setAttribute(name, bean)
yes, there is, but not using the DeltaManager,
instead use SimpleTcpReplicationMananger and set useDirtyFlag="false"
the useDirtyFlag is ignored on the delta manager, since the delta manager
only replicates deltas.
filip
-----Original Message-----
From: Ilyschenko, Vlad [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 26, 2004 9:32 AM
To: Tomcat Users List
Subject: A cluster question
Hello,
I have a session bean that changes its state as pages call methods on that
bean. I want this bean to be replictated to other cluster members but it
seems like it gets replicated only once, straight after it is created.
Is there any other way to force replication apart from calling
session.setAttribute(name, bean) ? I have tried useDirtyFlag true and
false - no luck.
The application is "distributed" and all other things do get replicated.
Regards,
Vlad
This is a little test case for my problem:
test.jsp:
---------
<jsp:useBean id="mybean" class="TestBean" scope="session" />
<%
out.print(mybean.a());
%>
TestBean.java
-------------
import org.apache.log4j.Logger;
import java.io.Serializable;
import java.io.IOException;
import java.util.Random;
public class TestBean implements Serializable{
private static Logger logger = Logger.getLogger(TestBean.class);
private long m_a = 0;
private Random rnd = new Random(System.currentTimeMillis());
public long a() {
m_a = rnd.nextLong();
return m_a;
}
private void writeObject(java.io.ObjectOutputStream out) throws
IOException {
//logger.debug("Serialized");
System.out.println("Serialized");
out.defaultWriteObject();
}
private void readObject(java.io.ObjectInputStream in) throws
IOException, ClassNotFoundException {
in.defaultReadObject();
// logger.debug("Deserialized");
System.out.println("Deserialized");
}
}
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