HAproxy负载均衡部署
1、安装HAproxy
yum -y install haproxy
2、编辑配置文件
#--------------------------------------------------------------------- # Example configuration for a possible web application. See the # full configuration options online. # # http://haproxy.1wt.eu/download/1.4/doc/configuration.txt # #--------------------------------------------------------------------- #--------------------------------------------------------------------- # Global settings #--------------------------------------------------------------------- global # to have these messages end up in /var/log/haproxy.log you will # need to: # # 1) configure syslog to accept network log events. This is done # by adding the ‘-r‘ option to the SYSLOGD_OPTIONS in # /etc/sysconfig/syslog # # 2) configure local2 events to go to the /var/log/haproxy.log # file. A line like the following can be added to # /etc/sysconfig/syslog # # local2.* /var/log/haproxy.log # log 127.0.0.1 local2 #定义日志 chroot /var/lib/haproxy #定义haproxy的家目录， pidfile /var/run/haproxy.pid #定义pid maxconn 4000 #设置最大并发连接数 user haproxy #用户名 group haproxy #用户组 daemon #以守护进程模式运行 # turn on stats unix socket stats socket /var/lib/haproxy/stats #--------------------------------------------------------------------- # common defaults that all the ‘listen‘ and ‘backend‘ sections will # use if not designated in their block #--------------------------------------------------------------------- defaults #默认参数 mode http log global option httplog option dontlognull option http-server-close option forwardfor except 127.0.0.0/8 option redispatch retries 3 timeout http-request 10s timeout queue 1m timeout connect 10s timeout client 1m timeout server 1m timeout http-keep-alive 10s timeout check 10s maxconn 3000 listen stats #状态信息 mode http bind *:1080 #绑定端口 stats enable #开启或者关闭 stats hide-version #关闭版本信息 stats uri /haproxy?admin #web状态界面的url stats realm Haproxy\ Statistics # stats auth admin:admin #认证的用户名：密码 stats admin if TRUE #如果认证成功开启admin frontend http-in #前端配置 bind *:80 #前端绑定端口 mode http #http log global #全局日志 option httpclose # option logasap capture request header Host len 20 capture request header Referer len 60 default_backend http-server backend http-server #后端web服务集群 balance roundrobin #调度算法模式 server web1 192.168.10.150:81 check maxconn 4000 #后端web列表 server web2 192.168.10.122:80 check maxconn 3000