凤朝飞

keepalivedTable of Contents keepalivedKeepalived的介绍Keepalived配置全局配置VRRPD配置LVS配置real_server中的健康检查Keepalived配置示例brain split脑裂vrrp协议keepalived双主模型keepalived的实现是依据vrrp协议,Keepalived的介绍LVS的缺点Director的单点。只有一

HA Cluster：集群类型：LB（lvs/nginx（http/upstream, stream/upstream））、HA、HP SPoF: Single Point of Failure系统可用性的公式：A=MTBF/（MTBF+MTTR） (0,1), 95% 几个9（指标）: 99%, ..., 99.999%，99.9999%； 99%： %1,