A Theory of System Behaviour in the Presence of Node and Link Failures

d Abstract) Adrian Francalanza and Matthew Hennessy University of Sussex, Falmer Brighton BN1 9RH, England Abstract. We develop a behavioural theory of distributed programs in the presence of failures such as nodes crashing and links breaking. The framework we use is that of Dπ, a language in which located processes, or agents, may migrate between dynamically created locations. In our extended framework, these processes run on a distributed network, in which individual nodes may crash in fail-stop fashion or the links between these nodes may become permanently broken. The original language, Dπ, is also extended by a ping construct for detecting and reacting to these failures. We define a bisimulation equivalence between these systems,based on labelled actions which record, in addition to the effect actions have on the processes, the effect on the actual state of the underlying network and the view of this state observers. We prove that the equivalence is fully abstract, in the sen...

• Type: Conference
• Year: 2005
• Where: CONCUR
• Authors: Adrian Francalanza, Matthew Hennessy
• Keywords: Adrian Francalanza, CONCUR 2005, Falmer Brighton, Matthew Hennessy University