Memcached负载均衡分析以及优化策略的设计

Memcached load balance mechanism has been introduced and analyzed in this paper. The test of accessing to the data following zipf distribution shows that there will be a load imbalance problem caused by the keys' popularity.To solve the problem,this paper gives the optimization strategy based on the keys' popularity and different consistency strategies based on the requirements which need strong consistency or weak consistency.Also this paper gives the experiment test showing that optimized version has a larger performance improvement compared with the original Memcached. The final part is to sum up the entire article.