Abstract：Faced with the problems of high transmission latency, IO bottleneck, uneven load of nodes and insufficient network stability in small and medium scale distributed file storage system, this study focuses on the light weight, low cost and high adaptability optimization. Based on the full consideration of the characteristics of the deployment of small clusters, we shall put forward dynamic data localization, cache collaborative load balancing, SSD hardware upgrade and other schemes, effectively overcome the technical pain points of the small storage system such as insufficient resource utilization and poor stability of read and write performance, effectively balance the load of cluster nodes, reduce the delay and packet loss rate of data transmission during the operation of the system, significantly improve the system throughput of read and write and the stability of daily operation, and ensure that the small distributed file storage system meets the high-performance storage requirements proposed in the light storage scenarios such as edge computing and small and medium enterprise business.
Keywords : Distributed file storage；Load balancing；Data localization；Performance optimization
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