Applying Patterns to Improve the Performance of Fault Tolerant CORBA
HiPC '00 Proceedings of the 7th International Conference on High Performance Computing
Is it an Agent, or Just a Program?: A Taxonomy for Autonomous Agents
ECAI '96 Proceedings of the Workshop on Intelligent Agents III, Agent Theories, Architectures, and Languages
DOORS: Towards High-Performance Fault Tolerant CORBA
DOA '00 Proceedings of the International Symposium on Distributed Objects and Applications
Experiences, Strategies, and Challenges in Building Fault-Tolerant CORBA Systems
IEEE Transactions on Computers
Towards Real-Time Fault-Tolerant CORBA Middleware
Cluster Computing
MEAD: support for Real-Time Fault-Tolerant CORBA: Research Articles
Concurrency and Computation: Practice & Experience - Foundations of Middleware Technologies
Designing Reliable Architecture for Stateful Fault Tolerance
PDCAT '06 Proceedings of the Seventh International Conference on Parallel and Distributed Computing, Applications and Technologies
Adaptive Failover for Real-Time Middleware with Passive Replication
RTAS '09 Proceedings of the 2009 15th IEEE Symposium on Real-Time and Embedded Technology and Applications
Towards middleware for fault-tolerance in distributed real-time and embedded systems
DAIS'08 Proceedings of the 8th IFIP WG 6.1 international conference on Distributed applications and interoperable systems
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The application of advanced communications, electronics, and information technologies to improve the efficiency, safety, and reliability of transportation systems is commonly referred to as ITS. The core functions of the ITS are collection, management, and provision of real time transport information, and it can be deployed based on the Common Object Request Broker Architecture (CORBA) of the Object Management Group (OMG) efficiently because it consists of many interconnected heterogeneous systems. Fault Tolerant CORBA (FT-CORBA) supports real time requirement of transport information stably through redundancy by replication of server objects. However, object replication, management, and related protocols of FT-CORBA require extra system CPU and memory resources, and can degrade the system performance both locally and as a whole. This paper proposes an improved architecture to enhance performance of FT-CORBA based ITS by generating and managing object replicas adaptively during system operation with an agent. The proposed architecture is expected to be applicable to other FT-CORBA based systems.