MDB on queue from external context

[sozonnik]

Hello !
On server 1 I have external JNDI context (server 2, bind with ExternalContext MBean) with Queue bound to it on server 2.

Is it possible to deploy MDB on server 1 that it listen queue on server 2 ? Simply deploy MDB with external context specified, don't work because when i specify
<destination-jndi-name>/ext/engine/queue/A</destination-jndi-name>
MDB binds to queue/ext/engine/queue/A

[adrian.brock]

I've posted this a couple of times over the
last couple weeks.

You have to add your own provider to
jms-service.xml then tell the MDB to use it.
The key part is the ProviderUrl attribute
to get the remote jndi.

Regards,
Adrian

[gbeutler]

Hi,

I got the same problem. I tried your advice already. I added a provider and added the correct Provider there. If I shut down the other (external) boss I can see some exceptions which tells me that the connection was refused. The problem now is that my MDB on the local jboss can not resolve the topic name. If I write a test case and send a message to the external jboss, I can see that the topic is up and running there.
Did I miss something? Could you post a sample?

regards,

Guido

[adrian.brock]

I already did

http://www.jboss.org/modules/bb/index.html?module=bb&op=viewtopic&t=

[gbeutler]

Hi,

this is exactly what I did but I still get a JMSException that the topic is not bound. If I define the same topic localy I do not get this exception but also never receives a message from the remote topic.
at the jboss.xml I got a section :
<container-configurations>
<container-configuration>
<container-name>My Config</container-name>
<call-logging>false</call-logging>
<container-invoker>org.jboss.ejb.plugins.jms.JMSContainerInvoker</container-invoker>
<container-interceptors>
org.jboss.ejb.plugins.LogInterceptor
org.jboss.ejb.plugins.RunAsSecurityInterceptor
<!-- CMT -->

org.jboss.ejb.plugins.TxInterceptorCMT
org.jboss.ejb.plugins.MetricsInterceptor
org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor
<!-- BMT -->

org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor
org.jboss.ejb.plugins.MessageDrivenTxInterceptorBMT
org.jboss.ejb.plugins.MetricsInterceptor org.jboss.resource.connectionmanager.CachedConnectionInterceptor
</container-interceptors>
<client-interceptors>

org.jboss.proxy.ejb.HomeInterceptor
org.jboss.proxy.SecurityInterceptor
org.jboss.proxy.TransactionInterceptor
org.jboss.invocation.InvokerInterceptor


new org.jboss.proxy.ejb.StatelessSessionInterceptor
org.jboss.proxy.SecurityInterceptor
org.jboss.proxy.TransactionInterceptor
org.jboss.invocation.InvokerInterceptor

</client-interceptors>
<instance-pool>org.jboss.ejb.plugins.MessageDrivenInstancePool</instance-pool>
<instance-cache/>
<persistence-manager/>
<transaction-manager>org.jboss.tm.TxManager</transaction-manager>
<container-invoker-conf>
RemoteJMSProvider
StdJMSPool
15
1

10

queue/DLQ
10
0


</container-invoker-conf>
<container-pool-conf>
100
</container-pool-conf>
</container-configuration>
</container-configurations>

At this config is the
RemoteJMSProvider

tag which is my remote provider from jms-service.xml.
Is this wrong?

tnaks! regards,

Guido

[adrian.brock]

:-)

I just re-read your original post with the
queue/whatever problem

See this
http://www.jboss.org/modules/bb/index.html?module=bb&op=viewtopic&t=

[sozonnik]

Ok. I make it work. Example below.
But is another question:
I have firewall between this servers. What ports have to be opened for proper operation ? Is it enough to have JNDI and OIL ports ?

HelloMDB.java

import javax.ejb.*;
import javax.jms.*;

public class HelloMDB implements MessageDrivenBean, MessageListener
{
private MessageDrivenContext ctx = null;

public HelloMDB()
{
}

public void setMessageDrivenContext(MessageDrivenContext ctx) throws EJBException
{
this.ctx = ctx;
}

public void ejbCreate()
{
}

public void ejbRemove()
{
ctx=null;
}

public void onMessage(Message message)
{
System.err.println("Got message " + message.toString());
}
}

ejb-jar.xml


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">

<ejb-jar >
<enterprise-beans>
<!-- Message Driven Beans -->
<message-driven >
<![CDATA[]]>
<ejb-name>HelloMDB</ejb-name>
<ejb-class>HelloMDB</ejb-class>
<transaction-type>Container</transaction-type>
</message-driven>
</enterprise-beans>
</ejb-jar>

jboss.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_3_0.dtd">



<invoker-proxy-bindings>
<invoker-proxy-binding>
remote-message-driven-bean
<invoker-mbean>default</invoker-mbean>
<proxy-factory>org.jboss.ejb.plugins.jms.JMSContainerInvoker</proxy-factory>
<proxy-factory-config>
RemoteJMSProvider
StdJMSPool
15
1
True

10

queue/DLQ
10
0


</proxy-factory-config>
</invoker-proxy-binding>
<invoker-proxy-binding>
iiop
<invoker-mbean>jboss:service=invoker,type=iiop</invoker-mbean>
<proxy-factory>org.jboss.proxy.ejb.IORFactory</proxy-factory>
<proxy-factory-config>
<web-class-loader>org.jboss.iiop.WebCL</web-class-loader>
per-servant
<register-ejbs-in-jnp-context>true</register-ejbs-in-jnp-context>
<jnp-context>iiop</jnp-context>
RemoteJMSProvider
StdJMSPool
15
1
True

10

queue/DLQ
10
0


</proxy-factory-config>
</invoker-proxy-binding>
</invoker-proxy-bindings>

<enterprise-beans>
<message-driven>
<ejb-name>HelloMDB</ejb-name>
<destination-jndi-name>queue/A</destination-jndi-name>
<invoker-bindings>

<invoker-proxy-binding-name>remote-message-driven-bean</invoker-proxy-binding-name>

</invoker-bindings>
</message-driven>
</enterprise-beans>


remoteJMS-service.xml





RemoteJMSProvider
jnp://xx.xx.xx.xx:1099
XAConnectionFactory
XAConnectionFactory
org.jboss.jms.jndi.JBossMQProvider

[adrian.brock]

Do you know how to use search?

OIL will not work through a firewall,
use UIL/UIL2.
You can see the port in jbossmq-service.xml

Regards,
Adrian

[sozonnik]

&gt; OIL will not work through a firewall,
&gt; use UIL/UIL2.
&gt; You can see the port in jbossmq-service.xml

Yes, I've seen it.
But i will have one way access between servers. I mean that server with MDB can create connection to server with queue but not vice versa.
So, JNDI and UIL ports are enough ?

[gbeutler]

Hi,

my jboss never seems to use the hostname of the remote jboss. I can shut down the remote jboss or give a wrong name at the attribute without any effect. No exception is thrown.
My MDB is not working with the remote topic of course. Any idea what's my mistake?

regards,

Guido

[sozonnik]

First check through jmx-console that JMSProviderLoader MBean deployed and started.

[gbeutler]

Hi,

it is started and bound. The state is 3. This does not change if I start or stop the remote jboss.
I tried to start and stop the bean after starting/stopping the remote jboss. It has no efect if the remote jboss is up or down.
If I try
<configuration-name>My Config</configuration-name>
and put the config (se above at this mailing thread) in there an execption is thrown, if the remote jboss is down. When using the <invoker-proxy-bindings>
settings (like the instruction sample above) this does not happen.
My MDB is not reacting to messages with both settings :-(


regards,

Guido

[sozonnik]

I use Jboss 3.2.0 may be you have prior version ?
Try latest version.

[priya71]

Is this still applicable to Jboss3.0.3.

So if I add Remote JMS provider with provider url to jms-service.xml and add the remvote provider URL to jboss.xml I should be set

[npdavis]

I've posted this a couple of times over the
last couple weeks.

You have to add your own provider to
jms-service.xml then tell the MDB to use it.
The key part is the ProviderUrl attribute
to get the remote jndi.

Regards,
Adrian

care to elaborate? This isn't in the pay docs, or if it is, I can't seem to find it, even after a week. Know where to find an example of all of this? Some of us find an example very helpful when doing something for the first time : )