Abstract: Dynamic logging of messages in a distributed system is enabled by processing message tags. Tags to be processed may be included in message headers or as message parameters. Different components of the distributed system may determine which message is to be logged based on the tag included in the message. Detection of a tag may initiate logging by a relevant system component.

Abstract: Resilient load balancing servers in an enhanced communication system is provided mitigating server failures or scheduled shutdowns. A repeatable but virtually random sequence of servers is generated for a given pool of homogeneous servers based on a user identifier in a request message. If a request cannot be routed to a first choice server, for any reason, then subsequent servers in the sequence are selected. A communication protocol within the system is adapted to permit an individual server to indicate that it cannot accept new requests. Following the indication from the server, traffic associated with existing dialogs is allowed to continue to be processed by the server, but new dialogs are directed to other servers.