Numerous works has been done for load balancing of web servers in grid environment. Reason behinds popularity of grid environment is to allow accessing distributed resources which are located at remote locations. For effective utilization, load must be balanced among all resources. Importance of load balancing is discussed by distinguishing the system between without load balancing and with loa...

Two-tier HTTP server clusters consist of a set of front-end servers receiving incoming requests that are passed off to back-end servers, which actually serve the requests. Traditional state-ofthe-art algorithms are based on Weighted Round Robin (WRR) distribution of requests to backend servers. This provides good load balancing, but lacks performance when the total working set of requests cause...

We consider a queueing system with two types of servers and two types of customers. General-use servers can provide service to either customer type while limited-use servers can be used only for one of the two. Though the apparent Markovian state space of this system is five-dimensional, we show that an aggregation results in an exact two-dimensional representation that is also Markovian. Matri...

We consider secure two-party computation in the client-server model. In our scenario, two adversaries operate separately but simultaneously, each of them corrupting one of the parties and a restricted subset of servers that they interact with. We model security in this setting via the local universal composability framework introduced by Canetti and Vald and show that informationtheoretically s...