Hello.
OK. I was able to (at last) run the
RMI clustering. It now works. But... I have a question...
Now I can put up a cluster, and
when a bean does not exist on the server it is searched on the cluster and
used. However if it is deployed on more than one machine... It is not found on
all of them, but rather on only one.
For simplicity let's assume we have
OrionA, OrionB, OrionC and OrionD.
a) on all machines we have
EnterpriseBean1 deployed. It accesses EnterpriseBean2
b) machine OrionA does not have
EnterpriseBean2 deployed.
c) machines OrionB, OrionC and
OrionD have EnterpriseBean2 deployed.
d) all machines have a RMI cluster
set-up and working.
(BTW) Because I
needed quite some time to understand why the
cluster was
not working I am eager to help anyone, that needs
help on the
subject.
If machine OrionA runs
EnterpriseBean1 it will have to look-up EnterpriseBean2, which is used by
EnterpriseBean1.
There is no problem to find that
bean (it exists on the cluster). However... Once EnterpriseBean2 is used on
OrionC it keeps using that one. Why? Also. If we deploy EnterpriseBean2 on
OrionA it is always found there and not on ANY other cluster
machine.
1. How does Orion know on which
machine to use the bean? The last one, that wakes up?
2. Is there a way to implement (at
least) a round-robin technique to access the clustered bean on more than one
server? I mean... When I look-up EnterpriseBean2... I would like to have a
different server answering every time. Round-robin is sufficient, even though a
loadbalancing technique would be better appropriate.
Ok. Waiting forward to hearing from
you all...
P.S. Another question... CAN I TURN
WEB-SERVICES OFF??? I tried removing the default-web-app tag in the server.xml,
but it starts complaining about no default web-app :((( I want to have some
Orion servers to act as EJB only servers.
Lachezar
