一种多策略双机热备方法

A Multi Strategy hot standby method

摘要:

随着电网监控系统对实时性要求的不断提高,为避免由于网络环境、程序故障等原因导致的服务中断,保障实时应用服务不间断运行,本文提出了一种多策略双机热备方法。通过利用主备节点之间HeartBeat协议以及借助与数据库的时间同步机制实现对运行状态的双重心跳检测,避免裂脑问题；再利用节点IP多重校验完成服务接管,并实现主备间的平滑切换。该方法处理机制简单高效,无需任何额外系统配置,并在实际应用中验证了其稳定的性能。

Abstract:

With the continuous improvement of real-time requirement of power grid monitoring system, a multi-strategy dual-machine hot standby method is proposed to avoid service interruption caused by network environment and program faults and ensure the uninterrupted operation of real-time application services. By using HeartBeat protocol between master and standby nodes and time synchronization mechanism with database, the dual heartbeat detection of running state can be realized to avoid the problem of split-brain. Then the service takeover can be completed by using IP multiple checks of nodes, and the smooth switching between master and standby can be realized. This method is simple and efficient without any additional system configuration, and its stable performance is verified in practical application.