Linux system Architecture (lb-ha cluster)-nginx load Balancing cluster configuration

Nginx Load Balancer cluster configuration

[Email protected] ~]# cd/usr/local/nginx/conf/vhosts/

[[email protected] vhosts]# ls

Default.conf test.conf

[Email protected] vhosts]# vim lb.conf

Upstream Wang {

Server 192.168.137.21:80;

Server 192.168.137.23:80;

}

server {

Listen 80;

server_name www.123.com;

Location/{

Proxy_pass http://wang/;

Proxy_set_header Host $host;

}

}

[Email protected] vhosts]# ipvsadm-c

[Email protected] vhosts]# iptables-t nat-f

[Email protected] vhosts]# iptables-f

[[Email protected] vhosts]# CD

If you've done this before, clear it up first .

[Email protected] ~]# NETSTAT-LNP |grep nginx

TCP 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 24166/nginx

[Email protected] ~]# curl-xlocalhost:80www.123.com

Master

[Email protected] ~]# curl-xlocalhost:80www.123.com

Slave

[Email protected] ~]# curl-xlocalhost:80www.123.com

Master

[Email protected] ~]# curl-xlocalhost:80www.123.com

slave650) this.width=650, "style=" Border-bottom: #ddd 1px solid;border-left: #ddd 1px solid;background:url ("/e/u261/ Lang/zh-cn/images/localimage.png ") no-repeat Center 50%;border-top: #ddd 1px solid;border-right: #ddd 1px solid;" alt= " Spacer.gif "src="/e/u261/themes/default/images/spacer.gif "width=" 554 "height=" 98 "/>

Visit Master once , slave once.

[Email protected] ~]# cd/usr/local/nginx/conf/vhosts/

[Email protected] vhosts]# vim lb.conf

Upstream Wang {

Server 192.168.137.21:80 weight=2 ;

Server 192.168.137.23:80 weight=1 ;

}

server {

Listen 80;

server_name www.123.com;

Location/{

Proxy_pass http://wang/;

Proxy_set_header Host $host;

}

}

Plus weight

[Email protected] vhosts]#/etc/init.d/nginxrestart

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

650) this.width=650, "style=" Border-bottom: #ddd 1px solid;border-left: #ddd 1px solid;background:url ("/e/u261/lang/ Zh-cn/images/localimage.png ") no-repeat Center 50%;border-top: #ddd 1px solid;border-right: #ddd 1px solid;" alt= " Spacer.gif "src="/e/u261/themes/default/images/spacer.gif "width=" 456 "height=" 212 "/>

occurs two times master, once slave

on Rs1:

Stop Service

[[email protected] ~]#/etc/init.d/nginx stop

Dir on test:

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

650) this.width=650, "style=" Border-bottom: #ddd 1px solid;border-left: #ddd 1px solid;background:url ("/e/u261/lang/ Zh-cn/images/localimage.png ") no-repeat Center 50%;border-top: #ddd 1px solid;border-right: #ddd 1px solid;" alt= " Spacer.gif "src="/e/u261/themes/default/images/spacer.gif "width=" "height=" 155 "/>"

All Access slave, automatic rejection of bad, automatic switching

Rs1 Recovery Service

[[email protected] ~]#/etc/init.d/nginx start

Dir on test

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Slave

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

[Email protected] vhosts]# curl-xlocalhost:80www.123.com

Master

650) this.width=650, "style=" Border-bottom: #ddd 1px solid;border-left: #ddd 1px solid;background:url ("/e/u261/lang/ Zh-cn/images/localimage.png ") no-repeat Center 50%;border-top: #ddd 1px solid;border-right: #ddd 1px solid;" alt= " Spacer.gif "src="/e/u261/themes/default/images/spacer.gif "width=" 396 "height="/>

Auto Recovery, two times master, one time slave

This article is from the Linux Learning Notes blog, so be sure to keep this source http://9656134.blog.51cto.com/9646134/1678349

Linux system Architecture (lb-ha cluster)-nginx load Balancing cluster configuration