Using Tailored Failure Suspectors to Support Distributed
Cooperative Applications
F. Cosquer, L. Rodrigues and P. VerĂssimo
Selected portions of this report were published in the Proceedings of
the 7th International Conference on Parallel and Distributed Computing
and Systems, Washington D.C., Oct 18-21, 1995.
Abstract
This paper presents an approach to effectively support cooperative
applications using tailored failure suspectors. Using a group
communication subsystem, it is shown how failure suspectors can be
configured to model the requirements/semantics of cooperative
applications thus avoiding ad-hoc system decisions. This approach is
highly relevant in the context of large scale distributed systems like
the Internet, where communication high variance and unpredictable
delays increase the probability of incorrect failure
detection. Applications are presented illustrating how failure
suspectors are configured and possibly combined with new feedback
techniques in order to implement more powerful cooperative
environments.
Also available as
INESC AR/08-95 (gzip postscript).