ELDMA: Enhanced Load balancing Decision making using Decentralized Mobile Agent framework

A modified version of LDM4 is proposed as an ELDM4 (Enhanced Load balancing Decision making using Decentralized Mobile Agent), which distributes the load equally among the Web servers organized in a mesh topology, by a communication media. In LDMA, the rank is assigned to the Web server as and when it enters the cluster. The rank shows the priority of processing a request by the servers in the cluster. Each server involves in the decision making for processing the request by exchanging the message. It causes high communication overhead between the servers. In the proposed scheme, a rank is dynamically assigned to the servers based on CPU processing time and memory utilization. In addition to that the communication overhead is reduced by restricting the message exchange between the servers. The performance of the proposed scheme is evaluated using load distribution, throughput and network traffic.