18-基于CentOS7搭建RabbitMQ3.10.7集群镜像队列+HaProxy+Keepalived高可用架构( 三 ) _生活百科

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停止[扩展]killall haproxyps -ef | grep haproxynetstat -tunpl | grep haproxyps -ef |grep haproxy |awk '{print $2}'|xargs kill -9安装Keepalived[153,154]简介

之前在Nginx已经用过Keepalived了
Keepalived，它是一个高性能的服务器高可用或热备解决方案，Keepalived主要来防止服务器单点故障的发生问题，可以通过其与Nginx、Haproxy等反向代理的负载均衡服务器配合实现web服务端的高可用。Keepalived以VRRP协议为实现基础，用VRRP协议来实现高可用性（HA）.VRRP（Virtual Router Redundancy Protocol）协议是用于实现路由器冗余的协议，VRRP协议将两台或多台路由器设备虚拟成一个设备，对外提供虚拟路由器IP（一个或多个）。

安装我直接采用2.0.18版本, 上传到linux

18-基于CentOS7搭建RabbitMQ3.10.7集群镜像队列+HaProxy+Keepalived高可用架构

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tar -zxvf keepalived-2.0.18.tar.gzcd keepalived-2.0.18/yum install libnl libnl-devel./configure \--prefix=/usr/local/keepalived \--sysconf=/etcmake && make installcd /etc/keepalived/vi keepalived.conf153配置
! Configuration File for keepalivedglobal_defs {router_id haproxykm##标识节点的字符串，通常为hostname}vrrp_script chk_haproxy {script "/etc/keepalived/haproxy_check.sh"##执行脚本位置interval 2##检测时间间隔weight -20##如果条件成立则权重减20}vrrp_instance VI_1 {state MASTER## 主节点为MASTER，备份节点为BACKUPinterface ens33 ## 绑定虚拟IP的网络接口（网卡），与本机IP地址所在的网络接口相同（我这里是eth0）virtual_router_id 74## 虚拟路由ID号（主备节点一定要相同）mcast_src_ip 192.168.247.153 ## 本机ip地址priority 100##优先级配置（0-254的值）nopreemptadvert_int 1## 组播信息发送间隔，俩个节点必须配置一致，默认1sauthentication {## 认证匹配auth_type PASSauth_pass bhz}track_script {chk_haproxy}virtual_ipaddress {192.168.247.160## 虚拟ip，可以指定多个}}154配置
! Configuration File for keepalivedglobal_defs {router_id haproxyks##标识节点的字符串，通常为hostname}vrrp_script chk_haproxy {script "/etc/keepalived/haproxy_check.sh"##执行脚本位置interval 2##检测时间间隔weight -20##如果条件成立则权重减20}vrrp_instance VI_1 {state BACKUP## 主节点为MASTER，备份节点为BACKUPinterface ens33 ## 绑定虚拟IP的网络接口（网卡），与本机IP地址所在的网络接口相同（我这里是eth0）virtual_router_id 74## 虚拟路由ID号（主备节点一定要相同）mcast_src_ip 192.168.247.154 ## 本机ip地址priority 80##优先级配置（0-254的值）nopreemptadvert_int 1## 组播信息发送间隔，俩个节点必须配置一致，默认1sauthentication {## 认证匹配auth_type PASSauth_pass bhz}track_script {chk_haproxy}virtual_ipaddress {192.168.247.160## 虚拟ip，可以指定多个}}编写自动检测脚本touch /etc/keepalived/haproxy_check.shchmod +x /etc/keepalived/haproxy_check.shvi /etc/keepalived/haproxy_check.sh脚本内容
#!/bin/bashCOUNT=`ps -C haproxy --no-header |wc -l`if [ $COUNT -eq 0 ];then/usr/local/haproxy/sbin/haproxy -f /etc/haproxy/haproxy.cfgsleep 2if [ `ps -C haproxy --no-header |wc -l` -eq 0 ];thenkillall keepalivedfifi启动# 记得先启动haproxy, 再启动Keepalived/usr/local/haproxy/sbin/haproxy -f /etc/haproxy/haproxy.cfg# 查看进程ps -ef | grep haproxy# 将Keepalived注册为系统服务cd /home/software/keepalived-2.0.18/keepalived/etc/cp init.d/keepalived /etc/init.d/cp sysconfig/keepalived /etc/sysconfig/systemctl daemon-reload# 启动Keepalivedsystemctl [start | stop | status | restart] keepalivedsystemctl start keepalived.servicesystemctl stop keepalived.service# 查看服务ps -ef|grep keepalived高可用测试