实验环境：基于centos6.6

haproxy-Server：172.16.249.98 hostname:node1

upsteram server1：172.16.249.100 hostname:node2

upstream server2：172.16.249.99 hostname:node3

web服务的负载均衡以及状态监控：

设置记录haproxy日志的文件位置：

node1:#vim/etc/rsyslog.conf

(1)启用UDP：

#ProvidesUDPsyslogreception

$ModLoadimudp

$UDPServerRun514

(2)添加记录日志的文件位置

#Savebootmessagesalsotoboot.log

local7.*/var/log/boot.log

local2.*/var/log/haproxy.log

#servicersyslogrestart

node1:#yuminstallhaproxy-y

#cd/etc/haproxy/

#cphaproxy.cfg{,.bak}

#vimhaproxy.cfg#---------------------------------------------------------------------

#Globalsettings

#---------------------------------------------------------------------

global

#tohavethesemessagesendupin/var/log/haproxy.logyouwill

#needto:

#

#1)configuresyslogtoacceptnetworklogevents.Thisisdone

#byaddingthe‘-r‘optiontotheSYSLOGD_OPTIONSin

#/etc/sysconfig/syslog

#

#2)configurelocal2eventstogotothe/var/log/haproxy.log

#file.Alinelikethefollowingcanbeaddedto

#/etc/sysconfig/syslog

#

#local2.*/var/log/haproxy.log

#

log127.0.0.1local2

chroot/var/lib/haproxy

pidfile/var/run/haproxy.pid

maxconn4000

userhaproxy

grouphaproxy

daemon

defaults

modehttp

logglobal

optionhttplog

optiondontlognull

optionhttp-server-close

optionforwardforexcept127.0.0.0/8

optionredispatch

retries3

timeouthttp-request10s

timeoutqueue1m

timeoutconnect10s

timeoutclient1m

timeoutserver1m

timeouthttp-keep-alive10s

timeoutcheck10s

maxconn30000

listenstats#此段为设置状态监控

modehttp

bind:8888#生产环境中为保证安全性，为设置特殊端口，例如：8888

statsenable

statshide-version

statsuri/haproxyadmin?stats

statsrealmHaproxy\Statistics

statsauthadmin:admin#设置用户名以及密码

statsadminifTRUE

frontendhttp-in

bind*:80

modehttp

logglobal

optionhttpclose

optionlogasap

optiondontlognull

capturerequestheaderHostlen20

capturerequestheaderRefererlen60

default_backendservers

frontendhealthcheck

bind:1099

modehttp

optionhttpclose

optionforwardfor

default_backendservers

backendservers

balanceroundrobin

servernode2172.16.249.100:80checkmaxconn2000

servernode3172.16.249.99:80checkmaxconn2000#serivcehaproxystart

node2,node3节点分别建立测试页面，并启动httpd服务;node2:#vim/var/www/html/index.html

httpdonnode2

#servicehttpdstart

node3:#vim/var/www/html/index.html

httpdonnode3

#servicehttpdstart

打开浏览器：172.16.249.98:

打开浏览器：172.16.249.98:8888/haproxy?stats

动静分离配置：

#vim /etc/haproxy/haproxy.cfg#---------------------------------------------------------------------

global

#tohavethesemessagesendupin/var/log/haproxy.logyouwill

#needto:

#

#1)configuresyslogtoacceptnetworklogevents.Thisisdone

#byaddingthe‘-r‘optiontotheSYSLOGD_OPTIONSin

#/etc/sysconfig/syslog

#

#2)configurelocal2eventstogotothe/var/log/haproxy.log

#file.Alinelikethefollowingcanbeaddedto

#/etc/sysconfig/syslog

#

#local2.*/var/log/haproxy.log

#

log127.0.0.1local2

chroot/var/lib/haproxy

pidfile/var/run/haproxy.pid

maxconn4000

userhaproxy

grouphaproxy

daemon

#turnonstatsunixsocket

statssocket/var/lib/haproxy/stats

defaults

modehttp

logglobal

optionhttplog

optiondontlognull

optionhttp-server-close

optionforwardforexcept127.0.0.0/8

optionredispatch

retries3

timeouthttp-request10s

timeoutqueue1m

timeoutconnect10s

timeoutclient1m

timeoutserver1m

timeouthttp-keep-alive10s

timeoutcheck10s

maxconn3000

frontendmain*:80

aclurl_staticpath_beg-i/static/images/javascript/stylesheets

aclurl_staticpath_end-i.jpg.gif.png.css.js.html.txt.htm

use_backendstaticifurl_static

default_backendapp

backendstatic

balanceroundrobin

servernode2172.16.249.100:80check

backendapp

balanceroundrobin

servernode3172.16.249.99:80check#serivcehaproxystart#启动haproxy服务

所有静态页面请求代理至node2节点；所有动态页面请求代理至node3节点。node2:#vim/var/www/html/index.html

httpdonnode2

#servicehttpdstart

node3:#vim/var/www/html/index.php

phpinfo();

?>

#servicehttpdstart

打开浏览器：172.16.249.98/index.html

打开浏览器：172.16.249.98/index.php

负载均衡mysql服务：

node1：#yuminstallmysql-y

#vim/etc/haproxy/haproxy.cfg#---------------------------------------------------------------------

global

#tohavethesemessagesendupin/var/log/haproxy.logyouwill

#needto:

#

#1)configuresyslogtoacceptnetworklogevents.Thisisdone

#byaddingthe‘-r‘optiontotheSYSLOGD_OPTIONSin

#/etc/sysconfig/syslog

#

#2)configurelocal2eventstogotothe/var/log/haproxy.log

#file.Alinelikethefollowingcanbeaddedto

#/etc/sysconfig/syslog

#

#local2.*/var/log/haproxy.log

#

log127.0.0.1local2

chroot/var/lib/haproxy

pidfile/var/run/haproxy.pid

maxconn4000

userhaproxy

grouphaproxy

daemon

#turnonstatsunixsocket

statssocket/var/lib/haproxy/stats

defaults

modetcp

logglobal

optiondontlognull

optionhttp-server-close

#optionforwardforexcept127.0.0.0/8

optionredispatch

retries3

timeouthttp-request10s

timeoutqueue1m

timeoutconnect10s

timeoutclient1m

timeoutserver1m

timeouthttp-keep-alive10s

timeoutcheck10s

maxconn3000

frontendbd

bind:3306

default_backenddbsrvs

backenddbsrvs

balanceleastconn

servernode2172.16.249.100:3306check

servernode3172.16.249.99:3306check

listenstats

bind:80

modehttp

statsenable

statsuri/haproxy?stats

statsrealmhaproxy\stats

statsauthadmin:admin

statsadminifTRUE

分别在node2、node3节点建立数据库，并授权可远程连接：

node2:#yuminstallmysql-server-y

#serivcemysqldstart

#mysql

node3:#yuminstallmysql-server-y

#serivcemysqldstart

#mysql

node1:#servicehaproxyrestart#重启服务，配置文件才能生效

#mysql-uroot-h172.16.249.98-pmageedu

检测：

node2：#mysql-uroot-pmageedu

node3:#mysql-uroot-pmageedu;

说明：由于我们在node1节点调用了数据库并创建了表，node2节点查看有此表，node3节点无此表，因此我们刚才的测试中调用了node2节点的mysql数据库而非node3节点。

原文：http://9612520./9602520/1601566