Keepalived+HAProxy高可用搭建
Keepalived实现了一套VRRP协议(虚拟路由协议)，这个协议允许服务器可以动态的设置IP路由。 使用Keepalived可以加强负载均衡软件的可用性。 环境信息 192.168.61.3 ha1 - MASTER 192.168.61.4 ha2 - BACKUP Keepalived编译安装 yum -y install openssl-devel wget http://www.keepalived.org/software/keepalived-<version>.tar.gz tar -zxvf keepalived-<version>.tar.gz cd keepalived-<version> ./configure --prefix=/usr/local/keepalived make make install 安装psmisc 安装psmisc，可使用 killall -0 haproxy检查haproxy实例是否存活，性能高于ps。