1 2 Previous Next 15 Replies Latest reply on Jul 9, 2012 10:33 AM by borisha

AS7 clustering and remote outbound connection issue

mannu_cse Jun 21, 2012 9:49 AM

I am trying to setup a cluster of 3 JBoss 7.1.1 final instance lets say node1, node2, node3

I am following the configuration explained in

https://docs.jboss.org/author/display/AS71/Clustered+EJBs

I defined a clustered Stateless bean in B.ear and deployed it into node2

in the node1 I have A.ear deployed which does the lookup of EJB in B.ear

standalone_full_ha.xml of node1 has one outbound connection configured for node2's host name, port.

As it's explained I need to define only one outbound connection to a node in the cluster and rest will be taken care

Now I deploy the B.ear in the node3 server and stop server B

after doing all this I make a call to node1 and expect it to do the lookup in node3 now ( since node2 is down)

But this doesn't work, I get java.lang.IllegalStateException: No EJB receiver available for handling...

java.lang.IllegalStateException: No EJB receiver available for handling

I also see this error, any help will be appreciate

14:17:36,459 ERROR [org.jboss.remoting.remote.connection] (Remoting "node1" read-1) JBREM000200: Rem
ote connection failed: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
14:17:36,473 INFO [org.jboss.ejb.client.remoting.RemotingConnectionClusterNodeManager] (ejb-client-
cluster-node-connection-creation-4-thread-1) Could not create a connection for cluster node ClusterN
ode{clusterName='ejb', nodeName='node2', clientMappings=[ClientMapping{sourceNetworkAddress=/0:0:0:0
:0:0:0:0, sourceNetworkMaskBits=0, destinationAddress='127.0.0.1', destinationPort=4467}], resolvedD
estination=[Destination address=127.0.0.1, destination port=4467]} in cluster ejb: java.lang.Runtime
Exception: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?

1. Re: AS7 clustering and remote outbound connection issue

rhusar Jun 21, 2012 9:54 AM (in response to mannu_cse)

Hmhm,

looks like https://issues.jboss.org/browse/AS7-4755 which is fixed in 7.1.2.

Rado
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2. Re: AS7 clustering and remote outbound connection issue

mannu_cse Jun 21, 2012 10:28 AM (in response to rhusar)

I also tried with 7.2.0.Alpha1-SNAPSHOT, and got the same error
I dont want to configure all remote outbound connections as it requires repackaging of aplication everytime there is a change
in cluster's topology.
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3. Re: AS7 clustering and remote outbound connection issue

jaikiran Jun 21, 2012 10:49 AM (in response to mannu_cse)

You should configure the connection configurations for the cluster name in your jboss-ejb-client.xml of the deployment. See the jboss-ejb-client_1_2.xsd for more details (you can find it in JBOSS_HOME/docs/schema folder).
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4. Re: AS7 clustering and remote outbound connection issue

rhusar Jun 21, 2012 11:00 AM (in response to mannu_cse)

Manoj,

I think you should read up on
https://docs.jboss.org/author/display/AS71/EJB+invocations+from+a+remote+server+instance
because what you want to do will not work. You have 2 different applications so its more of a cluster to cluster communication.
I dont want to configure all remote outbound connections as it requires repackaging of aplication everytime there is a change in cluster's topology.
That shouldnt be necesary. You only need to add new <remote-destination .../> when topology changes, no need to repackage.

R
1 of 1 people found this helpful
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5. Re: AS7 clustering and remote outbound connection issue

mannu_cse Jun 21, 2012 11:58 AM (in response to rhusar)

Alright, Even if I add more outbound connections in standalone-full-ha.xml, my application only does lookup in the server configured in jboss-ejb-client.xml

so its not helping me
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6. Re: AS7 clustering and remote outbound connection issue

rhusar Jun 21, 2012 11:58 AM (in response to mannu_cse)

I see that you deleted your reply, but I was about to say:

Are both of those servers really remote? Otherwise the logging is wrong and should be fixed.
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7. Re: AS7 clustering and remote outbound connection issue

rhusar Jun 21, 2012 12:01 PM (in response to mannu_cse)

AFAIR there should be no servers defined in jboss-ejb-client.xml -- only reference to the connection where all the servers are defined.
1 of 1 people found this helpful
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8. Re: AS7 clustering and remote outbound connection issue

mannu_cse Jun 21, 2012 12:17 PM (in response to rhusar)

Okay, I have 3 jboss nodes running in same machine with port bind offset 10, 20, 30, all jboss are placed in different directory by the way.

here is my jboss-ejb-client.xml of A.ear, I have defined the "ejb-security-realm" and outbound connection in node1 only (in it's standalone-full-ha.xml)
Am I supposed to replicate this to other nodes also?

<jboss-ejb-client xmlns:xsi="urn:jboss:ejb-client:1.0" xsi:noNamespaceSchemaLocation="jboss-ejb-client_1_2.xsd"
>
      <client-context >
        <ejb-receivers >
            <remoting-ejb-receiver outbound-connection-ref="remote-ejb-connection"/>
        </ejb-receivers>
        <clusters >
                  <cluster max-allowed-connected-nodes="200" name="ejb" username="guest" security-realm="ejb-security-realm" cluster-node-selector="sdk.service.producer.NodeSelector">
                            <node name="node1"
                                      security-realm="ejb-security-realm" username="guest" connect-timeout="30000">
                                      <connection-creation-options>
                    <property name="org.xnio.Options.SSL_ENABLED" value="false"/>
                    <property name="org.xnio.Options.SASL_POLICY_NOANONYMOUS" value="true"/>
                                      </connection-creation-options>
                            </node>

                            <node name="node2"
                                      security-realm="ejb-security-realm" username="guest" connect-timeout="30000">
                                      <connection-creation-options>
                    <property name="org.xnio.Options.SSL_ENABLED" value="false"/>
                    <property name="org.xnio.Options.SASL_POLICY_NOANONYMOUS" value="true"/>
                                      </connection-creation-options>
                            </node>

                            <node name="node3"
                                      security-realm="ejb-security-realm" username="guest" connect-timeout="30000">
                                      <connection-creation-options>
                    <property name="org.xnio.Options.SSL_ENABLED" value="false"/>
                    <property name="org.xnio.Options.SASL_POLICY_NOANONYMOUS" value="true"/>
                                      </connection-creation-options>
                            </node>
                  </cluster>

        </clusters>
    </client-context>
</jboss-ejb-client>
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9. Re: AS7 clustering and remote outbound connection issue

mannu_cse Jun 21, 2012 12:20 PM (in response to mannu_cse)

Okay, looks like I am quite close to it now, when I deploy the client application on node1, I see this error for both node2, and node3
Should I have to specify user name password in jboss-ejb-client.xml if yes, please let me know how?

17:05:59,431 INFO [org.jboss.ejb.client.remoting.RemotingConnectionClusterNodeManager] (ejb-client-
cluster-node-connection-creation-8-thread-2) Could not create a connection for cluster node ClusterN
ode{clusterName='ejb', nodeName='node3', clientMappings=[ClientMapping{sourceNetworkAddress=/0:0:0:0
:0:0:0:0, sourceNetworkMaskBits=0, destinationAddress='127.0.0.1', destinationPort=4477}], resolvedD
estination=[Destination address=127.0.0.1, destination port=4477]} in cluster ejb: java.lang.Runtime
Exception: javax.security.sasl.SaslException: Authentication failed: all available authentication me
chanisms failed
        at org.jboss.ejb.client.remoting.IoFutureHelper.get(IoFutureHelper.java:91)
        at org.jboss.ejb.client.remoting.RemotingConnectionClusterNodeManager.getEJBReceiver(Remotin
gConnectionClusterNodeManager.java:104)
        at org.jboss.ejb.client.ClusterContext$EJBReceiverAssociationTask.call(ClusterContext.java:4
06)
        at org.jboss.ejb.client.ClusterContext$EJBReceiverAssociationTask.call(ClusterContext.java:3
80)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [rt.jar:1.7.0_04]
        at java.util.concurrent.FutureTask.run(FutureTask.java:166) [rt.jar:1.7.0_04]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1
.7.0_04]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1
.7.0_04]
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10. Re: AS7 clustering and remote outbound connection issue

mannu_cse Jun 22, 2012 5:00 AM (in response to mannu_cse)

Finally it works, I had to define the cluster correctly
But this has a severe limitation, if I add any more node in the cluster then I have to change this file and repackage the application
Is there any other way to do this? please help

this is my jboss-ejb-client.xml

<jboss-ejb-client xmlns:xsi="urn:jboss:ejb-client:1.0" xsi:noNamespaceSchemaLocation="jboss-ejb-client_1_2.xsd">
      <client-context deployment-node-selector="sdk.service.producer.DeploymentSelector" >
        <ejb-receivers exclude-local-receiver="true">
             <remoting-ejb-receiver outbound-connection-ref="remote-ejb-connection"/>
        </ejb-receivers>

         <clusters >
                  <cluster max-allowed-connected-nodes="200" name="ejb" username="guest" security-realm="ejb-security-realm" cluster-node-selector="sdk.service.producer.NodeSelector">
                            <node name="node1"
                                      security-realm="ejb-security-realm" username="guest" connect-timeout="30000" >
                                      <connection-creation-options>
                    <property name="org.xnio.Options.SSL_ENABLED" value="false"/>
                    <property name="org.xnio.Options.SASL_POLICY_NOANONYMOUS" value="false"/>
                                      </connection-creation-options>
                            </node>

                            <node name="node2"
                                      security-realm="ejb-security-realm" username="guest" connect-timeout="30000">
                                      <connection-creation-options>
                    <property name="org.xnio.Options.SSL_ENABLED" value="false"/>
                    <property name="org.xnio.Options.SASL_POLICY_NOANONYMOUS" value="false"/>
                                      </connection-creation-options>
                            </node>
                            <node name="node3"
                                      security-realm="ejb-security-realm" username="guest" connect-timeout="30000">
                                      <connection-creation-options>
                    <property name="org.xnio.Options.SSL_ENABLED" value="false"/>
                    <property name="org.xnio.Options.SASL_POLICY_NOANONYMOUS" value="false"/>
                                      </connection-creation-options>
                            </node>
                  </cluster>

        </clusters>

    </client-context>
</jboss-ejb-client>
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11. Re: AS7 clustering and remote outbound connection issue

jaikiran Jun 22, 2012 6:46 AM (in response to mannu_cse)

You don't need it to configure in that manner. You can instead do it this way:

<jboss-ejb-client xmlns:xsi="urn:jboss:ejb-client:1.0" xsi:noNamespaceSchemaLocation="jboss-ejb-client_1_2.xsd">
...
            <ejb-receivers exclude-local-receiver="true">
                 <remoting-ejb-receiver outbound-connection-ref="remote-ejb-connection"/>
            </ejb-receivers>

             <clusters >
                      <cluster ... name="ejb" username="guest" security-realm="ejb-security-realm" ...>
                          <connection-creation-options>
                                <property name="org.xnio.Options.SSL_ENABLED" value="false"/>
                                <property name="org.xnio.Options.SASL_POLICY_NOANONYMOUS" value="false"/>                  
                            </connection-creation-options>
                      </cluster>
            </clusters>
        </client-context>
</jboss-ejb-client>

12. Re: AS7 clustering and remote outbound connection issue

mannu_cse Jun 22, 2012 6:55 AM (in response to jaikiran)

Thanks a lot, it just figured it out too, it works like a peace of cake now
Still it would have been great if I didnt have to specify the cluster name as well,
this would have made my day :-)
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13. Re: AS7 clustering and remote outbound connection issue

jaikiran Jun 22, 2012 7:05 AM (in response to mannu_cse)

Manoj Uikey wrote:

Still it would have been great if I didnt have to specify the cluster name as well,
Why not? Clusters are identified by a name, so leaving out the name won't be right.
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14. Re: AS7 clustering and remote outbound connection issue

mannu_cse Jun 22, 2012 7:53 AM (in response to jaikiran)

Since we are packaging jboss-ejb-client.xml inside application, it's like saying this EAR can be deployed in a cluster named "ejb"
what if I go on and try to deploy my app in a different cluster, it wont work.

I wonder if just <remoting-ejb-receiver outbound-connection-ref="remote-ejb-connection"/>
is enough to locate the node and find out into which cluster this referenced node belongs too
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