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Data streaming applications are becoming more and more common due to the rapid development in the areas such as sensor networks, multimedia streaming, and on-line data mining, etc. These applications are often running in a decentralized, distributed environment. The requirements for processing large volumes of streaming data at real time have posed many great design challenges. It is critical to optimize...
Live migration of virtual machine has attracted significant attention in recent years. It facilitates system online maintenance, load balancing, fault tolerance and power management. Although pre-copy approach can balance the downtime and total migration time of contradictions, it will cap the number of copying iterations to the maximum number of iterations since the writable working set is not guaranteed...
In the traditional distributed spanning tree (DST), randomly selecting representatives makes some nodes become critical nodes, which increase the load of critical nodes and also reduce the fault tolerance of systems. To resolve this problem, an improved DST structure and a searching algorithm were proposed. In this paper, we describe a representative selection rule first, which provides a good load...
Many emerging information processing applications require applying various fork and join type operations such as correlation, aggregation, and encoding/decoding to data streams in real-time. Each operation will require one or more simultaneous input data streams and produce one or more output streams, where the processing may shrink or expand the data rates upon completion. Multiple tasks can be co-located...
Federated systems have recently attracted much attention because they allow loosely coupled organizations to share resources for common benefits. However, discovering resources across administrative boundaries is challenging. Despite their willingness to share resources, many organizations prefer not to export their internal resource description to unfamiliar parties. While it is highly desirable...
An experimental evaluation of unbalanced-nodes PC cluster shows a not good scalability. In this paper, the experiment results of evaluation on unbalanced-nodes PC cluster are shown and discussed. A dynamic approach of load balancing is proposed to improve scalability of unbalanced PC cluster.
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