![]() ![]() After failure, the entire load should be redistributed equally among working servers of the system.Ģ. This method provides a fair degree of application system fault-tolerance. If a server or node fails, its workload should be moved over to other servers, automatically as fast as possible and the application should continue to run uninterrupted. Server usage should be transparent to hardware and software failures. High availability: Clients should be able to access the server at almost all times. Load distribution should remain balanced even as load changes with time. Load balancing: Each server in the cluster should process a fair share of client load, in proportion to its processing power, to avoid overloading of some and underutilization of other server resources. Scalability: should be able to add new servers on the existing node or add new additional nodes to enable the server to handle increasing loads without performance degradation and in a manner transparent to the end-users. ![]() The goals of application server clustering are: The important point to note is that the cluster appears as a single server to its clients. The server cluster or server group is generally distributed over a number of machines or nodes. What is application server clustering?Īnswer: An application server cluster consists of a number of application servers loosely coupled on a network. ![]()
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