作者:郑嘉成，张亚楠
Authors:ZHENG Jia-cheng,ZHANG Ya-nan摘要:\n\t摘要:针对传统数据分发服务中，由慢订阅者与慢连接问题引起的高丢包率问题，提出多线程数据分发模型，降低丢包率。采用多线程技术，基于actor模型，引入多线程worker实现订阅者并行接收数据，改进订阅者无状态消息返回发布者可能引起的慢连接问题，建立了基于多线程worker的高可靠数据分发服务模型，有效降低了数据传输过程中的丢包率。不仅通过与ZeroMQ（zero message queue，零消息队列）进行对比试验,表明该模型在接收不同长度报文情况下，能有效降低丢包率。而且通过对模型进行压力测试，验证其降低丢包率的有效性。\n

Abstract:\n\tAbstract:A multi-threaded data distribution model is proposed to reduce the packet loss rate caused by slow subscribers and slow connections in traditional data distribution services. Based on the actor model, the multi-threaded worker is introduced to enable subscribers to receive data in parallel and to improve the slow connection problem caused by lack of status message from subscribers to publishers, and a highly reliable data distribution service model based on the multi-threaded worker is established to reduce the packet loss rate during data transmission effectively. A contrast experiment ZeroMQ (zero message queue) shows that the model can effectively reduce the packet loss rate when receiving messages of different lengths. The effectiveness of the model in reducing packet loss is also verified through stress tests.\n


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