nginx负载均衡如何部署双机热备方法及步骤
下文给大家带来nginx负载均衡如何部署双机热备方法及步骤，希望能够给大家在实际运用中带来一定的帮助，负载均衡涉及的东西比较多，理论也不多，网上有很多书籍，今天我们就用在行业内累计的经验来做一个解答。
部署
ip分配 nginx192.168.1.5主机 192.168.1.6备机 浮动ip192.168.1.7
首先设置浮动ip（主备机器都要设置）
打开网卡eth0 配置好网络参数
复制eth0为eth0:1
修改vim eth0:1
NAME = eth0:1
DEVICE = eth0:1
IPADDR = 192.168.1.7
开启转发
echo "1" > /proc/sys/net/ipv4/ip_forward
修改/etc/sysctl.conf文件，让包转发功能在系统启动时自动生效:
# Controls IP packet forwarding
net.ipv4.ip_forward = 1
重启网络
service network restart
安装keepalived
yum install keepalived -y
修改配置文件
vim /etc/keepalived/keepalived.conf
主机配置情况
global_defs {
notification_email {
#baojing@163.com 设置报警
}
router_id LVS_DEVEL
}
vrrp_script chk_http_port {
script "
interval 1
weight -10
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.7
}
track_script {
chk_http_port
}
}
备用机上面配置
global_defs {
notification_email {
#baojing@163.com 设置报警
}
router_id LVS_DEVEL
}
vrrp_script chk_http_port {
script "
interval 1
weight -10
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 51
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.7
}
track_script {
chk_http_port
}
}
启动查看keepalived情况
killall keepalived
service keepalived start
tail -f /var/log/messages
安装nginx配置转发负载均衡
vim /usr/local/nginx/conf/nginx.conf
添加负载均衡配置
upstream mytest {
#least_conn;
#ip_hash;
server 1.test.com weight=3 max_fails=2 fail_timeout=30s;
server 2.test.com weight=3 max_fails=2 fail_timeout=30s;
server 3.test.com weight=5 max_fails=3 fail_timeout=30s;
}
location ^~/piwik/ {
proxy_pass http://mytest;
}
/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx
/usr/local/nginx/sbin/nginx -s reload 重新加载配置
看了以上关于nginx负载均衡如何部署双机热备方法及步骤，如果大家还有什么地方需要了解的可以在行业资讯里查找自己感兴趣的或者找我们的专业技术工程师解答的，技术工程师在行业内拥有十几年的经验了。
