Dynamic Aspect-Oriented Load Balancing in Java RMI

Load balancing is the process of distributing client requests over a set of servers, and is a key element of obtaining good performance in a distributed application. Java RMI extends Java with distributed objects whose methods can be called from remote clients. In some Java RMI programs, there may be multiple replicas of a given object that can be the receiver of a remote method invocation. Effectively distributing these requests across these replicas requires either an extra balancer process or additional code on the client for this distribution. In this paper, we demonstrate the use of dynamic aspects in JAC to solve this problem. The client proxy is modified with an aspect to forward requests to a specific server, but the server is also able to shed load by altering or removing this aspect. The overhead of this approach is evaluated using a set of microbenchmarks.

• Type: Conference
• Year: 2008
• Where: PDPTA
• Authors: Andrew Stevenson, Steve MacDonald
• Keywords: Distributed And Parallel Computing, Java RMI, Java RMI Programs, PDPTA 2008, Rmi Extends Java