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MapReduce has been used at Google, Yahoo, FaceBook etc., even for their production jobs. However, according to a recent study, a single failure on a Hadoop job could cause a 50% increase in completion time. Amazon Elastic MapReduce has been provided to help users perform data-intensive tasks for their applications. These applications may have high fault tolerance and/or tight SLA requirements. However,...
The reliability is a major factor that limits the success of promising service oriented architecture in bioinformatics. To evaluate services reliability and availability and create indicators of quality of service, we have defined an XML format designed to exchange service status reports. We demonstrate the interest of sharing status reports between service consumers and producers by providing two...
Desktop grids have emerged as an important methodology to harness the idle cycles of millions of participant desktop PCs over the Internet. However, to effectively utilize the resources of a desktop grid, it is necessary to use scheduling policies suitable for such systems. A scheduling policy must be applicable to large-scale systems involving large numbers of machines. Also, the policy must be fault-aware...
The paper presents the communication model for decentralized meta-scheduler in grid environments. The proposed model is a distributed, fault-tolerant, adaptive and efficient one. It is designed as an agents platform for grid scheduling algorithms, which denote the decentralized architecture of this model. The platform contains two type of agents: one for resource management (broker), and the other...
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