Post-partition reconciliation protocols for maintaining consistency
Proceedings of the 2006 ACM symposium on Applied computing
Applying aspects to a real-time embedded operating system
Proceedings of the 6th workshop on Aspects, components, and patterns for infrastructure software
Aspect-oriented implementation of fault tolerance: an assessment of overhead
SAFECOMP'10 Proceedings of the 29th international conference on Computer safety, reliability, and security
Implementing fault tolerance using aspect oriented programming
LADC'07 Proceedings of the Third Latin-American conference on Dependable Computing
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This paper describes the use of aspect-oriented programming to improve performance of fault-tolerant (FT) servers built with middleware support. Its contribution is to shift method call logging from middleware to application level in primary-backup replication. The novelty consists in no burden being placed on application writers, except for a simple component description aiding automatic generation of aspect code. The approach is illustrated by describing how synchronization aspects are weaved in an application, and modifications of an FTCORBA platform to avoid middleware level logging. Evaluation is performed using a telecom application enriched with aspects, running on top of the aspect-supporting platform. We compare overheads with earlier results from runs on the base-line platform. Experiments show a drop of around 40% of original overheads. This is due to methods starting execution before previous ones end, in contrast to ordering enforced at middleware level where methods are executed sequentially, not adapting to application knowledge.