3、keepalived+nginx配置 3.1、准务nginx健康检查shell脚本 mkdir/usr/local/keepalived/scriptscat<<'CAT_END'> /usr/local/keepalived/scripts/check_web.sh#!/bin/shnginxpid=$(pidofnginx |wc-l) #1、判断Nginx是否存活,如果不存活则尝试启动Nginxif[ $nginxpid -eq0];thensystemctl start nginxsleep2#2、...
# 还有个巨坑是参考资料中直接在keepalived.conf中定义script "[[ -f /etc/keepalived/down ]] && # exit 1 || exit 0" 但是我多次测试不成功,将条件判断放入脚本,conf文件仅引用路径才成功... Jul 15 15:54:24 DR1 Keepalived_vrrp[4438]: /etc/keepalived/chk_down.sh exited with status 1 Jul 1...
上述配置中,我们创建了一个Nginx虚拟主机,它监听虚拟IP地址192.168.1.100和80端口,并将请求转发到名为backend的后端上。 步骤4:安装和配置VRRPScript 使用以下命令安装VRRPScript: sudo yum install keepalived 1. 编辑/etc/keepalived/keepalived.conf文件,添加以下内容: vrrp_instance VI_1 { state MASTER interface ...
Web 负载均衡解决方案——HAproxy+keepalived实现高可用负载均衡 HAProxy概念: HAProxy提供高可用性、负载均衡以及基于TCP和HTTP应用的代理,支持虚拟主机, 它是免费...haproxy.1wt.eu/download/1.4/src/haproxy-1.4.20.tar.gz 一, 拓扑 浮动...30 router_id nginx1 } vrrp_script chk_haproxy { script "/et...
once instance failed with check script infailed to terminate after killstate, KA will not control corresponding instance at all. I can even stop DB process, both (master and replica) check scripts will instantly return non zero values, but KA will not give a damn, it will consider instance...
3、Keepalived + nginx keepalived可以认为是VRRP协议在Linux上的实现,主要有三个模块,分别是core、check和vrrp。core模块为keepalived的核心,负责主进程的启动、维护以及全局配置文件的加载和解析。check负责健康检查,包括常见的各种检查方式。vrrp模块是来实现VRRP协议的。
基于脚本调用接口完成脚本中定义的功能,进而影响集群事务,以此支持nginx、haproxy等服务 Keepalived 环境准备 包安装 [root@ubuntu2204 ~]#apt list keepalived 正在列表... 完成 keepalived/jammy1:2.2.4-0.2build1 amd64 [root@ubuntu2204 ~]#apt update;apt -y install keepalived ...