Abstract: In the study of cluster system, the load-balancing algorithm is an important direction, because it is related to whether the multiple servers, after integrated into a cluster system, are able to collaborate well to better complete the task the users submit. To achieve this goal, the paper, basing on the analysis of the existing load-balancing algorithms, proposes an improved load-balancing algorithm that can dynamically collect the real-time server load indexes then calculate the weights of the servers in the assignation of the connection requests users submit. The test results show that the improved method can effectively prevent the servers from tilt and achieve a good load-balancing effect.

Key words: cluster, load balance, dynamic scheduling algorithm