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，这些站点通常又需要会话保持或七层处理。 HAProxy运行在当前的硬件上，完全可以支持数以万计的并发连接。并且它的运行模式使得它可以很简单安全的整合进您当前的架构中， 同时可以保护你的web服务器不被暴露到网络上。

二，安装haproxy

下载列表地址http://haproxy.1wt.eu

wget http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.8.tar.gz

 

tar zxvf haproxy-1.4.8.tar.gz
cd haproxy-1.4.8
uname -a           //查看linux内核版本
make TARGET=linux26 PREFIX=/usr/local/haproxy
make install PREFIX=/usr/local/haproxy

三，配置haproxy

vi /usr/local/haproxy/haproxy.cfg

global
        maxconn 5120
        chroot /usr/local/haproxy
        uid 99
        gid 99
        daemon
        quiet
        nbproc  2
        pidfile /usr/local/haproxy/haproxy.pid
defaults
        log     global
        mode    http
        option  httplog
        option  dontlognull
        log 127.0.0.1 local3
        retries 3
        option redispatch
        maxconn 2000
        contimeout      5000
        clitimeout      50000
        srvtimeout      50000

listen webinfo :1080
       mode http
       balance roundrobin
       option httpclose
       option forwardfor
server localhost 192.168.18.2:10000 check weight 1 minconn 1 maxconn 3 check inter 40000
server 
localhost 
127.0.0.1:80 check weight 1 minconn 1 maxconn 3 check inter 40000

listen webmb :1081
       mode http
       balance roundrobin
       option httpclose
       option forwardfor
server webmb1 192.168.1.91:10000 weight 1 minconn 1 maxconn 3 check inter 40000
server webmb2 127.0.0.1:10000 weight 1 minconn 1 maxconn 3 check inter 40000

 listen stats :8888
       mode http
       transparent
       stats uri / haproxy-stats
       stats realm Haproxy \ statistic
       stats auth zhangy:xtajmd

三，启动haproxy

#启动haproxy
/usr/local/haproxy/haproxy -f /usr/local/haproxy/haproxy.cfg

#查看是否启动
$ ps -e|grep haproxy
4859 ?        00:00:00 haproxy
4860 ?        00:00:00 haproxy

四，压力测试

# ab -c 10 -n 10000 http://localhost:1080/

This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking 127.0.0.1 (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        Apache/2.2.20
Server Hostname:        127.0.0.1
Server Port:            1080

Document Path:          /
Document Length:        177 bytes

Concurrency Level:      10
Time taken for tests:   4.438 seconds
Complete requests:      10000
Failed requests:        0
Write errors:           0
Total transferred:      4530000 bytes
HTML transferred:       1770000 bytes
Requests per second:    2253.38 [#/sec] (mean)
Time per request:       4.438 [ms] (mean)
Time per request:       0.444 [ms] (mean, across all concurrent requests)
Transfer rate:          996.86 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.3      0      10
Processing:     0    4   3.6      4      46
Waiting:        0    4   3.5      3      46
Total:          0    4   3.6      4      46

Percentage of the requests served within a certain time (ms)
  50%      4
  66%      5
  75%      5
  80%      6
  90%      8
  95%     12
  98%     15
  99%     18
 100%     46 (longest request)

说明：haproxy监听的端口是1080，代理192.168.18.2:10000，127.0.0.1:10000

统计监听的是8888端口 http://localhost:8888/haproxy-stats

haproxy负载均衡

说明：

原博客中需要配置相关页面phpinfo.php

 由于没有php页面，我就使用apache服务器的默认页面

配置说明：

1.4系列参考配置文件

http://haproxy.1wt.eu/download/1.4/doc/configuration.txt

1.3系列参考配置文件

http://haproxy.1wt.eu/download/1.3/doc/configuration.txt

 

转自 http://blog.51yip.com/server/868.html