Pioneering work on Aspect Oriented Programming (AOP) has not flourished enough to enrich the design of distributed systems with the refined AOP paradigm. The more generous perspective today is that a decade of growing research on AOP has brought the paradigm into many exciting areas. We, therefore, investigate two case studies that cover time-honored issues, fault tolerant computing and parallel computing, in the cluster computing world using the AOP paradigm. Aspects that we define here are simple, intuitive and reusable. We believe that our implementation is very useful in developing other cluster computing software programs, and AOP can be a powerful method in modularizing source codes.