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Load balancing methods are algorithms or mechanisms used to efficiently distribute an incoming server request or traffic among servers from the server pool. Efficient load balancing is necessary to ensure the high availability of Web services and the delivery of such services in a fast and reliable manner. To meet a high traffic demand, servers are replicated. An incoming load or request to a server is shared across such replicated servers, and this process is known as load balancing. To effectively schedule the routing of requests from a client to the respective servers in an optimized way, several load balancing methods are used such as round robin, least connections, adaptive balancing, etc.
Load balancing methods are also known as algorithms for load balancing or scheduling methods as they specify the manner in which a server load is shared across a server pool. There are various load balancing methods available, and each method uses a particular criterion to schedule an incoming traffic. Some of the common load balancing methods are as follows:
Each method has its own set of benefits and suitable scenarios. The optimal algorithm that best suits the purpose can be selected by the service provider to give a smooth, reliable and fast service delivery to its clients.