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Workflow job is composed of several ordered subtasks which invoke different computing services. These computing services are deployed on geographically distributed servers. Towards Workflow Job Management, how to schedule workflow jobs to achieve high server resource utilization and how to ensure Quality of Service (QoS) pose several challenges. In the paper, an autonomic Performance-Aware Workflow...
P2P storage systems have a lot of attractive advantages, such as self-organizing, scalability, robust and fault-tolerant. Unfortunately, there are some problems in real network conditions, especially, when considering asynchronous wide-area networks, where messages may be delayed indefinitely and nodes may fail. So, failure detector is one of basic components to build a reliable P2P storage systems...
Based on service-oriented grid environment,the paper put forward a method of resource reservation which to construct a resource reservation tree(RRT).If the resource reserved before turns into invalidation, the substitute can be found directly in RRT and needn 't to initiate a process of discovery and negotiation again. The method can avoid a failure of resource reservation and advance its reliability...
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