9.2.4.3. About Remoting Server Detection

Remoting servers and clients can automatically detect each other using JNDI or Multicast. A Remoting Detector is added to both the client and server, and a NetworkRegistry is added to the client.

The Detector on the server side periodically scans the InvokerRegistry and pulls all server invokers it has created. It uses this information to publish a detection message which contains the locator and subsystems supported by each server invoker. It publishes this message via a multicast broadcast or a binding into a JNDI server.

On the client side, the Detector receives the multicast message or periodically polls the JNDI server to retrieve detection messages. If the Detector notices that a detection message is for a newly-detected remoting server, it registers it into the NetworkRegistry. The Detector also updates the NetworkRegistry if it detects that a server is no longer available.