No application members available suggests that the Axis2 nodes were not able to join the load balancers (LB) cluster. This indicates that either;
1. GroupManagement has not been enabled in the LB's axis2.xml 2. A group management agent has not been defined in the axis2.xml file corresponding to the domain defined in the Axis2 nodes' axis2.xml 3. If you have enabled multicast based membership discovery, multicasting is not working on your network, hence the membership discovery fails 4. In the LB you have enabled wka based membership discovery, and in the Axis2 nodes, you have enabled WKA based discovery. 5. Members advertising invalid hosts/ports because of invalid clustering config. Send me your axis2.xml files and synapse.xml file, and I will see what is wrong.
