haproxy安装文档
来源：互联网 发布：淘宝热销产品排行榜 编辑：程序博客网 时间：2024/06/06 19:18
haproxy安装文档
系统环境
[root@haproxy ~]# cat /etc/redhat-release CentOS release 6.5 (Final)[root@haproxy ~]# uname -aLinux haproxy 2.6.32-431.el6.i686 #1 SMP Fri Nov 22 00:26:36 UTC 2013 i686 i686 i386 GNU/Linux[root@haproxy~]# ifconfig eth0|sed -n "2p"|awk -F "[ :]+" '{print $4}'192.168.88.72[root@web1]# ifconfig eth0|awk -F "[ :]+" 'NR==2{print $4}'192.168.88.73[root@web2]# ifconfig eth0|grep "inet addr"|sed 's/^.*addr://g'|sed 's/Bcast.*$//g'192.168.88.74 - http安装
[root@web1 ~]# yum install -y httpd[root@web2 ~]# yum install -y httpd提供测试文件
[root@web1 ~]# echo "<h1>web1.test.com</h1>" >>/var/www/html/index.html[root@web2 ~]# echo "<h1>web2.test.com</h1>" >>/var/www/html/index.html启动httpd
[root@web1 ~]# service httpd start正在启动 httpd： [确定][root@web2 ~]# service httpd start正在启动 httpd： [确定]2.防火墙与SELinux
[root@web1 ~]# service iptables stop[root@web1 ~]# chkconfig iptables off [root@web1 ~]# getenforce Disabled[root@web2 ~]# service iptables stop[root@web2 ~]# chkconfig iptables off [root@web2 ~]# getenforce Disabled[root@haproxy ~]# service iptables stop[root@haproxy ~]# chkconfig iptables off [root@haproxy ~]# getenforce Disabled- 测试
[root@web1 ~]# curl 192.168.88.73<h1>web1.test.com</h1>[root@web2 ~]# curl 192.168.88.74<h1>web2.test.com</h1>- 安装haproxy
[root@haproxy ~]# yum install -y haproxy[root@haproxy ~]# rpm -ql haproxy /etc/haproxy #配置文件目录/etc/haproxy/haproxy.cfg #配置文件/etc/logrotate.d/haproxy /etc/rc.d/init.d/haproxy #启动脚本/etc/sysconfig/haproxy/usr/bin/halog/usr/bin/iprange/usr/sbin/haproxy #haproxy命令/usr/share/doc/haproxy-1.5.4/usr/share/doc/haproxy-1.5.4/CHANGELOG/usr/share/doc/haproxy-1.5.4/LICENSE/usr/share/doc/haproxy-1.5.4/README/usr/share/doc/haproxy-1.5.4/acl-content-sw.cfg/usr/share/doc/haproxy-1.5.4/acl.fig/usr/share/doc/haproxy-1.5.4/architecture.txt/usr/share/doc/haproxy-1.5.4/close-options.txt/usr/share/doc/haproxy-1.5.4/coding-style.txt/usr/share/doc/haproxy-1.5.4/configuration.txt/usr/share/doc/haproxy-1.5.4/content-sw-sample.cfg/usr/share/doc/haproxy-1.5.4/cookie-options.txt/usr/share/doc/haproxy-1.5.4/cttproxy-src.cfg/usr/share/doc/haproxy-1.5.4/design-thoughts/usr/share/doc/haproxy-1.5.4/design-thoughts/backends-v0.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/backends.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/be-fe-changes.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/binding-possibilities.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/buffer-redesign.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/buffers.fig/usr/share/doc/haproxy-1.5.4/design-thoughts/config-language.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/connection-reuse.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/cttproxy-changes.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/entities-v2.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/how-it-works.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/http_load_time.url/usr/share/doc/haproxy-1.5.4/design-thoughts/rate-shaping.txt/usr/share/doc/haproxy-1.5.4/design-thoughts/sess_par_sec.txt/usr/share/doc/haproxy-1.5.4/gpl.txt/usr/share/doc/haproxy-1.5.4/haproxy-en.txt/usr/share/doc/haproxy-1.5.4/haproxy-fr.txt/usr/share/doc/haproxy-1.5.4/haproxy.1/usr/share/doc/haproxy-1.5.4/haproxy.cfg/usr/share/doc/haproxy-1.5.4/internals/usr/share/doc/haproxy-1.5.4/internals/acl.txt/usr/share/doc/haproxy-1.5.4/internals/body-parsing.txt/usr/share/doc/haproxy-1.5.4/internals/buffer-operations.txt/usr/share/doc/haproxy-1.5.4/internals/buffer-ops.fig/usr/share/doc/haproxy-1.5.4/internals/connect-status.txt/usr/share/doc/haproxy-1.5.4/internals/connection-header.txt/usr/share/doc/haproxy-1.5.4/internals/connection-scale.txt/usr/share/doc/haproxy-1.5.4/internals/entities.fig/usr/share/doc/haproxy-1.5.4/internals/entities.pdf/usr/share/doc/haproxy-1.5.4/internals/entities.svg/usr/share/doc/haproxy-1.5.4/internals/entities.txt/usr/share/doc/haproxy-1.5.4/internals/hashing.txt/usr/share/doc/haproxy-1.5.4/internals/header-parser-speed.txt/usr/share/doc/haproxy-1.5.4/internals/header-tree.txt/usr/share/doc/haproxy-1.5.4/internals/http-cookies.txt/usr/share/doc/haproxy-1.5.4/internals/http-docs.txt/usr/share/doc/haproxy-1.5.4/internals/http-parsing.txt/usr/share/doc/haproxy-1.5.4/internals/naming.txt/usr/share/doc/haproxy-1.5.4/internals/pattern.dia/usr/share/doc/haproxy-1.5.4/internals/pattern.pdf/usr/share/doc/haproxy-1.5.4/internals/polling-states.fig/usr/share/doc/haproxy-1.5.4/internals/repartition-be-fe-fi.txt/usr/share/doc/haproxy-1.5.4/internals/sequence.fig/usr/share/doc/haproxy-1.5.4/internals/stats-v2.txt/usr/share/doc/haproxy-1.5.4/internals/stream-sock-states.fig/usr/share/doc/haproxy-1.5.4/internals/todo.cttproxy/usr/share/doc/haproxy-1.5.4/lgpl.txt/usr/share/doc/haproxy-1.5.4/proxy-protocol.txt/usr/share/doc/haproxy-1.5.4/queuing.fig/usr/share/doc/haproxy-1.5.4/tarpit.cfg/usr/share/doc/haproxy-1.5.4/url-switching.cfg/usr/share/haproxy/usr/share/haproxy/400.http/usr/share/haproxy/403.http/usr/share/haproxy/408.http/usr/share/haproxy/500.http/usr/share/haproxy/502.http/usr/share/haproxy/503.http/usr/share/haproxy/504.http/usr/share/haproxy/README/usr/share/man/man1/halog.1.gz/usr/share/man/man1/haproxy.1.gz #man文档/var/lib/haproxy- haproxy命令详解
[root@haproxy ~]# haproxy -hHA-Proxy version 1.5.4 2014/09/02Copyright 2000-2014 Willy Tarreau <w@1wt.eu>Usage : haproxy [-f <cfgfile>]* [ -vdVD ] [ -n <maxconn> ] [ -N <maxpconn> ] [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] -v displays version ; -vv shows known build options. -d enters debug mode ; -db only disables background mode. -dM[<byte>] poisons memory with <byte> (defaults to 0x50) -V enters verbose mode (disables quiet mode) -D goes daemon ; -C changes to <dir> before loading files. -q quiet mode : don't display messages -c check mode : only check config files and exit -n sets the maximum total # of connections (2000) -m limits the usable amount of memory (in MB) -N sets the default, per-proxy maximum # of connections (2000) -L set local peer name (default to hostname) -p writes pids of all children to this file -de disables epoll() usage even when available -dp disables poll() usage even when available -dS disables splice usage (broken on old kernels) -dV disables SSL verify on servers side -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.haproxy [-f < 配置文件>] [ -vdVD ] [-n 最大并发连接总数] [-N 每个侦听的最大并发数][ -p <当前的PID文件> ] [-m <内存限制M>]-v 显示当前版本信息；-vv 显示已知的创建选项-d 前台，debug模式；-db 禁用后台模式，程序跑在前台 -V 详细模式 -D daemon模式启动 -q 安静模式,不输出信息 -c 对配置文件进行语法检查 -n 最大并发连接总数 -m 限制的可用内存大小 -N 设置默认的连接数 -p 设置当前的PID文件 -de 不使用epoll -ds 不使用speculative epoll -dp 不使用poll -sf 程序启动后向pidlist里的进程发送FINISH信号，这个参数放在命令行的最后 -st 程序启动后向pidlist里的进程发送TERMINATE信号，这个参数放在命令行的最后 7. 查看一下默认配置文件[root@haproxy ~]# cd /etc/haproxy/[root@haproxy haproxy]# cat haproxy.cfg #---------------------------------------------------------------------# Example configuration for a possible web application. See the# full configuration options online.## http://haproxy.1wt.eu/download/1.4/doc/configuration.txt #官方配置文件##---------------------------------------------------------------------#---------------------------------------------------------------------# Global settings #全局配置文件#---------------------------------------------------------------------global # to have these messages end up in /var/log/haproxy.log you will # need to: #配置日志 # # 1) configure syslog to accept network log events. This is done # by adding the '-r' option to the SYSLOGD_OPTIONS in # /etc/sysconfig/syslog #修改syslog配置文件 # # 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 #定义日志设备 # # local2.* /var/log/haproxy.log # log 127.0.0.1 local2#全局的日志配置 其中日志级别是[err warning info debug]#local0 是日志设备，必须为如下24种标准syslog设备的一种:#kern user mail daemon auth syslog lpr news#uucp cron auth2 ftp ntp audit alert cron2#local0 local1 local2 local3 local4 local5 local6 local7 chroot /var/lib/haproxy pidfile /var/run/haproxy.pid #将所有进程的pid写入文件启动进程的用户必须有权限访问此文件。 maxconn 4000 #最大连接数，默认4000 user haproxy #用户 group haproxy #组 daemon ##创建1个进程进入deamon模式运行。此参数要求将运行模式设置为"daemon" # turn on stats unix socket #unix socket 文件 stats socket /var/lib/haproxy/stats#---------------------------------------------------------------------# common defaults that all the 'listen' and 'backend' sections will# use if not designated in their block #默认的全局设置，这些参数可以被利用配置到frontend，backend，listen组件 #---------------------------------------------------------------------defaults mode http #默认的模式mode { tcp|http|health }，tcp是4层，http是7层，health只会返回OK log global #采用全局定义的日志 option httplog #日志类别http日志格式 option dontlognull #不记录健康检查的日志信息 option http-server-close #每次请求完毕后主动关闭http通道 option forwardfor except 127.0.0.0/8 #不记录本机转发的日志 option redispatch #serverId对应的服务器挂掉后,强制定向到其他健康的服务器 retries 3 #3次连接失败就认为服务不可用，也可以通过后面设置 timeout http-request 10s #请求超时 timeout queue 1m #队列超时 timeout connect 10s #连接超时 timeout client 1m #客户端连接超时 timeout server 1m #服务器连接超时 timeout http-keep-alive 10s #长连接超时 timeout check 10s #检查超时 maxconn 3000 #最大连接数#---------------------------------------------------------------------# main frontend which proxys to the backends #frontend 与backends 代理配置#--------------------------------------------------------------------- frontend main *:5000#acl策略配置 acl url_static path_beg -i /static /images /javascript /stylesheets acl url_static path_end -i .jpg .gif .png .css .js use_backend static if url_static #满足策略要求，则响应策略定义的backend页面 default_backend app #不满足则响应backend的默认页面#---------------------------------------------------------------------# static backend for serving up images, stylesheets and such #定义使用静态后端图像，样式表等#--------------------------------------------------------------------- backend static balance roundrobin #负载均衡模式轮询 server static 127.0.0.1:4331 check #服务器定义#---------------------------------------------------------------------# round robin balancing between the various backends #--------------------------------------------------------------------- backend app balance roundrobin #负载均衡模式轮询 server app1 127.0.0.1:5001 check #服务器定义，check进行健康检查 server app2 127.0.0.1:5002 check server app3 127.0.0.1:5003 check server app4 127.0.0.1:5004 check- haproxy 案例演示
1.负载均衡Web服务器的案例
注，首先我们来配置一下日志，不然haproxy无法记录日志。
2.配置haproxy日志（注，配置方法配置文件中已说明，我们这里来演示一下。）
(1).修改系统日志的配置文件
[root@haproxy ~]# vim /etc/sysconfig/rsyslog
# Options for rsyslogd# Syslogd options are deprecated since rsyslog v3.# If you want to use them, switch to compatibility mode 2 by "-c 2"# See rsyslogd(8) for more detailsSYSLOGD_OPTIONS="-c 2 -r"(2).增加日志设备
[root@haproxy ~]# vim /etc/rsyslog.conf
#增加一行local2.* /var/log/haproxy.log(3).重新启动一下日志服务
[root@haproxy ~]# service rsyslog restart
关闭系统日志记录器： [确定]
启动系统日志记录器： [确定]
3.修改haproxy配置文件
[root@haproxy haproxy]# cat haproxy.cfg
#---------------------------------------------------------------------# 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 chroot /var/lib/haproxy pidfile /var/run/haproxy.pid maxconn 4000 user haproxy group haproxy daemondefaults 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 30000listen stats mode http bind 0.0.0.0:1080 stats enable stats hide-version stats uri /haproxyadmin?stats stats realm Haproxy\ Statistics stats auth admin:admin stats admin if TRUEfrontend http-in bind *:80 mode http log global option httpclose option logasap option dontlognull capture request header Host len 20 capture request header Referer len 60 default_backend serversfrontend healthcheck bind :1099 mode http option httpclose option forwardfor default_backend serversbackend servers balance roundrobin server websrv1 192.168.88.73:80 check maxconn 2000 server websrv2 192.168.88.74:80 check maxconn 20004.查检一下配置文件
[root@haproxy ~]# haproxy -c -f /etc/haproxy/haproxy.cfg
Configuration file is valid
5.启动haproxy
[root@haproxy ~]# service haproxy start
正在启动 haproxy：
6.查看一下端口
[root@haproxy ~]# netstat -ntulp | grep :80
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 3695/haproxy
- 测试
[root@haproxy haproxy]# curl 192.168.88.72
<h1>web1.test.com</h1>[root@haproxy haproxy]# curl 192.168.88.72
<h1>web2.test.com</h1>8.配置文件详解
注，现在大家再来看这个配置文件应该就很容易理解了。好了，下面我们来具体说一下。
[root@haproxy ~]# cat /etc/haproxy/haproxy.cfg#---------------------------------------------------------------------# Global settings 全局配置#---------------------------------------------------------------------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 ##上面的注释是告诉我们怎么配置日志的 log 127.0.0.1 local2 #定义日志 chroot /var/lib/haproxy #安全模式 pidfile /var/run/haproxy.pid #pid文件 maxconn 4000 #最大连接数 user haproxy #用户 group haproxy #组合 daemon #---------------------------------------------------------------------# Proxy settings 代理配置，下面全是代理配置#---------------------------------------------------------------------defaults #配置默认参数的，这些参数可以被利用配置到frontend，backend，listen组件 mode http #默认的模式mode { tcp|http|health }，tcp是4层，http是7层，health只会返回OK（注，health已经废弃） log global #采用全局定义的日志 option httplog #日志类别http日志格式 option dontlognull #不记录健康检查的日志信息 option http-server-close #每次请求完毕后主动关闭http通道 option forwardfor except 127.0.0.0/8 #不记录本机转发的日志 option redispatch #serverId对应的服务器挂掉后,强制定向到其他健康的服务器 retries 3 #3次连接失败就认为服务不可用，也可以通过后面设置 timeout http-request 10s #请求超时 timeout queue 1m #队列超时 timeout connect 10s #连接超时 timeout client 1m #客户端连接超时 timeout server 1m #服务器连接超时 timeout http-keep-alive 10s #长连接超时 timeout check 10s #检查超时 maxconn 30000 #最大连接数listen stats #listen是Frontend和Backend的组合体。这里定义的是haproxy监控！ mode http #模式http bind 0.0.0.0:1080 #绑定的监控ip与端口 stats enable #启用监控 stats hide-version #隐藏haproxy版本 stats uri /haproxyadmin?stats #定义的uri stats realm Haproxy\ Statistics #定义显示文字 stats auth admin:admin #认证 stats admin if TRUEfrontend http-in #接收请求的前端虚拟节点，Frontend可以根据规则直接指定具体使用后端的 backend(可动态选择)。这里定义的是http服务！ bind *:80 #绑定的监控ip与端口 mode http #模式http log global #定义日志 option httpclose #每次请求完毕后主动关闭http通道 option logasap # option dontlognull ##不记录健康检查的日志信息 capture request header Host len 20 capture request header Referer len 60 default_backend servers #定义的默认backendfrontend healthcheck bind :1099 mode http option httpclose option forwardfor default_backend servers #定义的默认backendbackend servers #后端服务集群的配置，是真实的服务器，一个Backend对应一个或者多个实体服务器。 balance roundrobin #负载均衡方式为轮询 server websrv1 192.168.88.73:80 check maxconn 2000 #定义server，check 健康检查，maxconn 定义最大连接数 server websrv2 192.168.88.74:80 check maxconn 2000好了，配置文件中的常用关键字参考 blog 中的haproxy 文档
haproxy访问器的监控功能
1.浏览器访问一下
http://192.168.88.72:1080/haproxyadmin?stats
10.模拟故障测试
[root@web1 ~]# service httpd stop
Stopping httpd: [ OK ]
刷新查看
http://192.168.88.72:1080/haproxyadmin?stats
0 0
- haproxy安装文档
- haproxy 安装
- 安装 Haproxy
- haproxy安装
- haproxy 官方文档
- haproxy配置文档
- haproxy帮助文档
- HaProxy 1.5 说明文档翻译
- HAProxy的安装
- haproxy安装与配置
- haproxy安装与配置
- Haproxy安装配置
- CentOS6.5 HAProxy 安装
- linux下安装Haproxy
- Haproxy安装和配置
- Haproxy安装与配置
- haproxy安装与配置
- Haproxy+keepalived安装配置
- 如何推送喜欢的书籍到kindle
- 学生知识点总结之一（GetSetting,SaveSetting）
- <mysql> 特殊技巧
- - Max Sum
- Lua常用方法分析
- haproxy安装文档
- 一段简单的jquery邮箱验证代码
- 推荐手机H5应用快速开发 UI库（Framework7、SUI(淘宝)、MUI、WeUI(微信)、GMU(百度）、Frozen UI（QQ））
- 搬瓦工(bandwagonhost.com) centos6 pptpd iptables 设置
- 2016暑假的好题
- 15、CSS3-响应式布局
- 重温应用程序的生命周期
- 静态解析，动态连接，静态分派，动态分派之间的联系和区别
- 解决Handler黄色警告，Handler正确使用方式
