Enhancing workflow fault tolerance using replication technique
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ORBWork is a scalable distributed runtime system of the METEOR workflow management system. This thesis investigates providing fault tolerance through replication in workflow systems. The passive and active replication models are implemented using Sun Jini technology and applied to ORBWork. Our experiments show that replication can greatly enhance the fault tolerance of the workflow system. Especially, the system can tolerate fatal failures including server crashes.