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Please use this identifier to cite or link to this item: http://hdl.handle.net/1813/6534
Title: Reliable Communication in the Presence of Failures
Authors: Birman, Kenneth P.
Joseph, Thomas A.
Keywords: computer science
technical report
Issue Date: Jul-1985
Publisher: Cornell University
Citation: http://techreports.library.cornell.edu:8081/Dienst/UI/1.0/Display/cul.cs/TR85-694
Abstract: We report on the design and correctness of a communication facility for a distributed computer system. The facility provides support for fault tolerant process groups in the form of a family of reliable multicast protocols that can be used both in local and wide-area networks. These protocols attain high levels of concurrency while respecting application-specific delivery ordering constraints, and have varying cost and performance that depends on the degree of ordering desired. In particular, a protocol that enforces causal delivery orderings is introduced, and shown to be a valuable alternative to conventional asynchronous communication protocols. The facility also ensures that the processes belonging to a fault tolerant process group will observe consistent orderings of events affecting the group as a whole, including process failures, recoveries, migration, and dynamic changes to group properties like member rankings. A review of several uses for the protocols in the ISIS system, which supports fault-tolerant resilient objects and bulletin boards, illustrates the significant simplification of higher-level algorithms; made possible by our approach.
URI: http://hdl.handle.net/1813/6534
Appears in Collections:Computer Science Technical Reports

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