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A virtual cluster consists of a multitude of virtual machines and software components that are doomed to fail eventually. In many environments, such failures can result in unanticipated, potentially devastating failure behavior and in service unavailability. The ability of failover is essential to the virtual cluster's availability, reliability, and manageability. Most of the existing methods have...
The fat-tree topology has become a popular choice for InfiniBand fabrics due to its inherent deadlock freedom, fault-tolerance and full bisection bandwidth. InfiniBand is used by more than 40% of the systems on the latest Top 500 list, and many of these systems are based on a fat-tree topology. However, the current InfiniBand fat-tree routing algorithm suffers from flaws that reduce its scalability...
The Map Reduce programming model simplifies large-scale data processing on commodity clusters by having users specify a map function that processes input key/value pairs to generate intermediate key/value pairs, and a reduce function that merges and converts intermediate key/value pairs into final results. Typical Map Reduce implementations such as Hadoop enforce barrier synchronization between the...
Peer-to-Peer (P2P) technologies are developing rapidly and have gained popularity. The application of P2P to areas such as file sharing, collaborative business environment, and distributed computing requires secure communication among the nodes. Cluster-based P2P structure provides an efficient way to do file sharing and distributed computing. A key agreement protocol is a set of communication rules...
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