Abstract:
In client-server type, due to repeated and
potentially faulty usage of long running server is
requested by many clients, such software "ages"
with time and eventually fails. We show that
virtualization promotes a new model that allows
tolerating in application domains with little
overhead. In this paper, we present load and
time dependent software rejuvenation policy that
can be applied in virtualized environment. We
consider the aging behavior of the system by
time, while the actual load of the system as well.
The behavior of the system is represented
through a Stochastic Petri Net (SPN) model.
Numerical analysis of the system availability is
carried out the SHARPE tool simulation.
