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可靠的集群通信系统为Web应用服务器集群在高负载条件下满足性能需求提供了基础.本文分析了利用集群技术扩展Web应用服务器对于通信的关键需求,提出了一个高效、灵活的集群通信系统,阐述了该系统的结构和设计,介绍了其中若干关键技术和解决办法,包括多播消息的高效传递、协议层次、可配置集群拓扑结构和备份模式等.本文描述的集群通信系统已在自主研发的OnceAS应用服务器中实现.
The reliable cluster communication system provides the foundation for the Web application server cluster to meet the performance requirements under the condition of high load.This paper analyzes the key requirements of the cluster application for extending the Web application server for communication and proposes an efficient and flexible cluster communication system, The structure and design of the system are introduced and some of the key technologies and solutions are introduced, including the efficient transmission of multicast messages, the protocol hierarchy, the configurable cluster topology and backup mode, etc. The trunking communication system described in this paper has been developed in-house OnceAS application server to achieve.