HAProxy杂记(1)
HAProxy
haproxy基础
1、安装haproxy
[root@master1 ~]# yum -y install haproxy
[root@master2 ~]# yum -y install haproxy查看haproxy生成的文件 :
[root@master1 ~]# rpm -ql haproxy备份配置文件:
[root@master1 haproxy]# cp haproxy.cfg{,.back}
[root@master1 haproxy]# ls
haproxy.cfg haproxy.cfg.back
haproxy演示
实验环境:1台haproxy,2台httpd
1、两台网页服务器安装httpd
[root@master2 ~]# yum install -y httpd
[root@master3 ~]# yum install -y httpd设置首页,启动服务:
[root@master2 ~]# echo "<h1>Web1</h1>" > /var/www/html/index.html
[root@master2 ~]# systemctl start httpd.service
[root@master2 ~]#[root@master3 ~]# echo "<h1>Web2</h1>" > /var/www/html/index.html
[root@master3 ~]# systemctl start httpd.service
[root@master3 ~]#
2、配置haproxy文件,将用户请求转发到后端去
[root@master1 haproxy]# vim haproxy.cfg#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend main *:80default_backend websrvs#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
backend websrvsbalance roundrobinserver web1 10.201.106.132:80 checkserver web2 10.201.106.133:80 check
~ 启动服务:
[root@master1 haproxy]# systemctl start haproxy.service
[root@master1 haproxy]# systemctl status haproxy.service
● haproxy.service - HAProxy Load BalancerLoaded: loaded (/usr/lib/systemd/system/haproxy.service; disabled; vendor preset: disabled)Active: active (running) since Sun 2017-01-15 22:30:40 CST; 5s agoMain PID: 4924 (haproxy-systemd)CGroup: /system.slice/haproxy.service├─4924 /usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid├─4925 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -Ds└─4926 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -DsJan 15 22:30:40 master1.com systemd[1]: Started HAProxy Load Balancer.
Jan 15 22:30:40 master1.com systemd[1]: Starting HAProxy Load Balancer...
Jan 15 22:30:40 master1.com haproxy-systemd-wrapper[4924]: haproxy-systemd-wrapper: executing /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -Ds
[root@master1 haproxy]# 访问:http://10.201.106.131/
可以在两个web站点轮流跳转
3、健康状态监测测试
3.1 停止一个web节点服务
[root@master2 ~]# systemctl stop httpd现在只能访问剩下的那个节点了;
4、开启日志功能
4.1 开启本地日志服务
配置日志文件:
[root@master1 ~]# vim /etc/rsyslog.conf # Provides UDP syslog reception
$ModLoad imudp
$UDPServerRun 514# Save boot messages also to boot.loglocal2.* /var/log/haproxy.log重启日志服务:
[root@master1 ~]# systemctl restart rsyslog.service
[root@master1 ~]# systemctl status rsyslog.service
● rsyslog.service - System Logging ServiceLoaded: loaded (/usr/lib/systemd/system/rsyslog.service; enabled; vendor preset: enabled)Active: active (running) since Sun 2017-01-15 22:47:46 CST; 13s agoMain PID: 5073 (rsyslogd)CGroup: /system.slice/rsyslog.service└─5073 /usr/sbin/rsyslogd -nJan 15 22:47:46 master1.com systemd[1]: Starting System Logging Service...
Jan 15 22:47:46 master1.com systemd[1]: Started System Logging Service.
[root@master1 ~]# 查看是否监听UDP 514端口:
[root@master1 ~]# ss -unlp
State Recv-Q Send-Q Local Address:Port Peer Address:Port
UNCONN 0 0 *:40858 *:* users:(("haproxy",pid=4926,fd=6),("haproxy",pid=4925,fd=6))
UNCONN 0 0 *:514 *:* users:(("rsyslogd",pid=5104,fd=3))
UNCONN 0 0 :::514 :::* users:(("rsyslogd",pid=5104,fd=4))
[root@master1 ~]#
4.2 查看haproxy日志
[root@master1 ~]# tail /var/log/haproxy.log Feb 5 23:21:29 localhost haproxy[4926]: Server websrvs/web1 is UP, reason: Layer4 check passed, check duration: 0ms. 2 active and 0 backup servers online. 0 sessions requeued, 0 total in queue.
Feb 5 23:21:31 localhost haproxy[4926]: 10.201.106.1:56402 [05/Feb/2017:23:21:31.495] main websrvs/web2 5/0/9/2/16 304 141 - - ---- 1/1/0/1/0 0/0 "GET / HTTP/1.1"
Feb 5 23:21:32 localhost haproxy[4926]: 10.201.106.1:56402 [05/Feb/2017:23:21:31.512] main websrvs/web1 727/0/1/4/732 200 273 - - ---- 1/1/0/0/0 0/0 "GET / HTTP/1.1"
Feb 5 23:21:32 localhost haproxy[4926]: 10.201.106.1:56402 [05/Feb/2017:23:21:32.243] main websrvs/web2 738/0/3/6/747 200 273 - - ---- 1/1/0/0/0 0/0 "GET / HTTP/1.1"
Feb 5 23:21:33 localhost haproxy[4926]: 10.201.106.1:56402 [05/Feb/2017:23:21:32.989] main websrvs/web1 572/0/1/2/575 200 273 - - ---- 1/1/0/1/0 0/0 "GET / HTTP/1.1"
[root@master1 ~]#
haproxy 高级配置
修改haproxy调度算法为source
vim haproxy.cfg
#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
backend websrvsbalance source重载服务:
[root@master1 haproxy]# systemctl reload haproxy.service访问测试后:只在一个web上面停留了,不会跳转至另一个web;
修改为uri算法
[root@master1 haproxy]# vim haproxy.cfg#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
backend websrvsbalance urihash-type consistent重载服务:
[root@master1 haproxy]# systemctl reload haproxy.service生成10个测试页面:
[root@master2 ~]# for i in {1..10};do echo "<h1>Page $i on Web1</h1>" > /var/www/html/test$i.html;done[root@master3 ~]# for i in {1..10};do echo "<h1>Page $i on Web2</h1>" > /var/www/html/test$i.html;done
[root@master3 ~]#
[root@master3 ~]# ls /var/www/html/
index.html test1.html test3.html test5.html test7.html test9.html
test10.html test2.html test4.html test6.html test8.html访问测试:http://10.201.106.131/test2.html
只固定在一个web服务器上;[root@master3 ~]# curl http://10.201.106.131/test2.html
<h1>Page 2 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test2.html
<h1>Page 2 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test2.html
<h1>Page 2 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test2.html
<h1>Page 2 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test2.html
<h1>Page 2 on Web1</h1>
[root@master3 ~]#
[root@master3 ~]# curl http://10.201.106.131/test5.html
<h1>Page 5 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test5.html
<h1>Page 5 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test5.html
<h1>Page 5 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test6.html
<h1>Page 6 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test6.html
<h1>Page 6 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test6.html
<h1>Page 6 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test8.html
<h1>Page 8 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test8.html
<h1>Page 8 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test9.html
<h1>Page 9 on Web2</h1>
[root@master3 ~]# curl http://10.201.106.131/test9.html
<h1>Page 9 on Web2</h1>
[root@master3 ~]# curl http://10.201.106.131/test3.html
<h1>Page 3 on Web2</h1>
[root@master3 ~]# curl http://10.201.106.131/test3.html
<h1>Page 3 on Web2</h1>
[root@master3 ~]# curl http://10.201.106.131/test4.html
<h1>Page 4 on Web2</h1>
[root@master3 ~]# curl http://10.201.106.131/test4.html
<h1>Page 4 on Web2</h1>
[root@master3 ~]# curl http://10.201.106.131/test8.html
<h1>Page 8 on Web1</h1>
[root@master3 ~]# curl http://10.201.106.131/test8.html
<h1>Page 8 on Web1</h1>
[root@master3 ~]#
hdr调度算法
#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
backend websrvsbalance hdr(User-Agent)hash-type consistent通过curl模拟别的浏览器访问:
[root@master3 ~]# curl -A 'hello' http://10.201.106.131/test4.html
<h1>Page 4 on Web2</h1>
[root@master3 ~]#
[root@master3 ~]# curl -A 'IE' http://10.201.106.131/test4.html
<h1>Page 4 on Web2</h1>
[root@master3 ~]# curl -A 'IE' http://10.201.106.131/test4.html
<h1>Page 4 on Web2</h1>
[root@master3 ~]# curl -A '360' http://10.201.106.131/test4.html
<h1>Page 4 on Web2</h1>
[root@master3 ~]# curl -A '360' http://10.201.106.131/test4.html
设置监听多个端口
#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend mainbind *:80 bind *:8080default_backend websrvs重启服务:
[root@master1 haproxy]# systemctl restart haproxy.service
[root@master1 haproxy]# ss -tnl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:8080 *:*
LISTEN 0 128 *:80 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
[root@master1 haproxy]#
修改权重测试
[root@master1 haproxy]# vim haproxy.cfg#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
backend websrvsbalance roundrobinserver web1 10.201.106.132:80 check weight 1server web2 10.201.106.133:80 check weight 3[root@master1 haproxy]# systemctl reload haproxy.service测试访问网页结果是,访问3次web2,才访问一次web1;
转载于:https://blog.51cto.com/zhongle21/2087359
HAProxy杂记(1)相关推荐
- Haproxy Nginx cluster构建
-----client---------haproxy-------nginx1---------nginx2------ 192.168.1.250 192.168.1.1 192.168.1.10 ...
- [原创]商城系统下单库存管控系列杂记(二)(并发安全和性能部分延伸)
商城系统下单库存管控系列杂记(二)(并发安全和性能部分延伸) 前言 参与过几个中小型商城系统的开发,随着时间的增长,以及对系统的深入研究和测试,发现确实有很多值得推敲和商榷的地方(总有 ...
- redis sentinel集群配置及haproxy配置
ip分布情况: sentinel-1/redis 主 10.11.11.5 sentinel-2/redis 从 10.11.11.7 sentinel-3/redis 从 10.11.11.8 ha ...
- 负载均衡工具haproxy安装,配置,使用
一,什么是haproxy HAProxy提供高可用性.负载均衡以及基于TCP和HTTP应用的代 理,支持虚拟主机,它是免费.快速并且可靠的一种解决方案.HAProxy特别适用于那些负载特大的web站点 ...
- 千万级并发HAproxy均衡负载系统介绍
Haproxy介绍及其定位 HAProxy提供高可用性.负载均衡以及基于TCP和HTTP应用的代理,支持虚拟主机,它是免费.快速并且可靠的一种解决方案.根据官方数据,其最高极限支持10G的并发. HA ...
- Linux自学笔记——haproxy
HAProxy提供高可用性.负载均衡以及基于TCP和HTTP应用的代理,支持虚拟主机,它是免费.快速并且可靠地一套解决方案.HAProxy特别适用于那些负载特大的web站点,这些站点通常又需要会话保持 ...
- 烂泥:haproxy学习之手机规则匹配
2019独角兽企业重金招聘Python工程师标准>>> 本文由ilanniweb提供友情赞助,首发于烂泥行天下 想要获得更多的文章,可以关注我的微信ilanniweb. 今天我们来介 ...
- haproxy ssl_我们如何微调HAProxy以实现2,000,000个并发SSL连接
haproxy ssl by Sachin Malhotra 由Sachin Malhotra 我们如何微调HAProxy以实现2,000,000个并发SSL连接 (How we fine-tuned ...
- saltstack实现haproxy+keepalived负载均衡+高可用(二)
一键部署haproxy+keepalived实现负载均衡+高可用 实验环境: !!!! 特别注意: www.westos.org为test1的minion名字 test1: 172.25.1.1 ...
最新文章
- S60 V3版SDK的官方扩展插件
- nginx 实现反向代理
- VJ 1033 整数分解(版本2)
- android 工程中引入第三方JAR包后安装APK时老是提示找不到库文件?
- java publickey_数字证书中读取PublicKey
- 坯子库安装不上_kodi如何安装中文插件?kodi中文插件安装方法
- Python程序员每天必做的几个动作
- 解决ubuntu下修改环境变量profile后报错,很多常用命令都用不了
- padding不显示背景色_PS常用快捷键有哪些?小白职场必备快捷键,再也不担心被难到...
- 计算机简谱转五线谱乐谱,五线谱如何转成简谱-五线谱转简谱图文教程 - Iefans...
- 每日一词20190306——经纬度(longitude and latitude)
- vmware设置固定ip
- 《安富莱嵌入式周报》第287期:下一代Windows12界面,支持各种工业以太网协议参考,百款在线电子开发工具,seL4安全微内核,旋转拨号手机,PSP掌机逆向
- 获取其他APP中素材
- 如何检查MacBook 电池的循环使用次数及健康度?电池续航的方法
- Metasploit用法大全
- 音乐制作软件中文精简版-Nuendo 4 v4.3 WiN
- 加勒比海盗船——最优装载问题(趣学算法C++代码和python代码)
- shell脚本基础知识-什么是shell、环境变量
- Java-实现购物车功能小系统
热门文章
- 求出该数组中特定元素的和,特定元素是指个位和十位不包含7的偶数。
- Java异常处理throws/throw
- 学习笔记13-C语言-字符串函数、缓冲区
- 计算机lab模式适用于,计算机考证二级选择题1
- linux心跳包检测代码_OpenSSL心跳包越界读敏感信息泄漏漏洞
- pytorch学习 训练一个分类器(五)
- Linux(13)-文件权限,chmod
- 区块链相关问题 理解
- 解决:Unable to open debugger port (127.0.0.1:55017): java.net.SocketException “Socket closed“
- 基于Flask开发企业级REST API应用(一)