HAProxy 7层 负载均衡

系统 CentOS 5.8 x64

wget http://haproxy.1wt.eu/download/1.3/src/haproxy-1.3.26.tar.gz

cd haproxy-1.3.26

make TARGET=linux26 PREFIX=/opt/local/haproxy

make install PREFIX=/opt/local/haproxy

mkdir /opt/local/haproxy/conf

cd /opt/local/haproxy/conf/

vim haproxy.cfg

后台配置模式

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global

log 127.0.0.1  local0

maxconn 65535

chroot /opt/local/haproxy

uid 502

gid 502

daemon

nbproc 8

pidfile /opt/local/haproxy/haproxy.pid

defaults

log   127.0.0.1    local3

mode  http

option httplog

option httpclose

option dontlognull

option forwardfor

option redispatch

retries 2

maxconn 2000

balance roundrobin

stats  uri   /haproxy-stats

timeout connect   5000

timeout client    50000

timeout server    50000

listen  172.24.0.100

bind *:80

mode http

option httplog

log global

option httpchk HEAD /index.jsp HTTP/1.0

server web1 172.24.0.101:8080 weight 2  check inter 2000 rise 2 fall 3

server web2 172.24.0.102:8080 weight 2  check inter 2000 rise 2 fall 3

添加 日志

vi /etc/syslog.conf      (centos 5.X版本)

vi /etc/rsyslog.conf     (centos 6.X版本)

local3.*                        /var/log/haproxy.log

local0.*                        /var/log/haproxy.log

vi /etc/sysconfig/syslog   (centos 5.X版本)

vi /etc/sysconfig/rsyslog  (centos 6.X版本)

SYSLOGD_OPTIONS="-m 0"

修改为

SYSLOGD_OPTIONS="-r -m 0"

重启日志服务

service syslog restart

/opt/local/haproxy/sbin/haproxy -f /opt/local/haproxy/haproxy.cfg    启动haproxy

或者用 脚本 来做启动 重启 关闭

vi /etc/init.d/haproxy

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#!/bin/bash

BASE_DIR="/opt/local/haproxy"

ARGV="$@"

start()

{

echo "START HAPoxy SERVERS"

$BASE_DIR/sbin/haproxy -f $BASE_DIR/conf/haproxy.cfg

}

stop()

{

echo "STOP HAPoxy Listen"

kill -TTOU $(cat $BASE_DIR/haproxy.pid)

echo "STOP HAPoxy process"

kill -USR1 $(cat $BASE_DIR/haproxy.pid)

}

case $ARGV in

start)

start

ERROR=$?

;;

stop)

stop

ERROR=$?

;;

restart)

stop

start

ERROR=$?

;;

*)

echo "hactl.sh [start|restart|stop]"

esac

exit $ERROR

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chmod +x /etc/init.d/haproxy

1.4版本以后的 启动 出现

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[WARNING] 022/092301 (26090) : Proxy 'www.xxx.com': in multi-process mode, stats will be limited to process assigned to the current request.

那是因为配置文件 nbproc > 1 所导致的...可将 配置文件 nbproc 设置为 1 或者修改编译文件..

在源码配置src/cfgparse.c找到如下行

if (nbproc > 1) {

if (curproxy->uri_auth) {

Warning("Proxy '%s': in multi-process mode, stats will be limited to process assigned to the current request.\n", curproxy->id);

if (!LIST_ISEMPTY(&curproxy->uri_auth->admin_rules)) {

Warning("Proxy '%s': stats admin will not work correctly in multi-process mode.\n", curproxy->id);

}

修改 nbproc > 1 这个数值就可以...

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option httpchk HEAD /index.php HTTP/1.0  这个为监控页面..在跟目录增加index.php文件，否则报503错误.

web监控 页面  http://www.xxxx.com/haproxy-stats

IP数据转发设置

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global   maxconn 65535 #最大连接数，HAProxy是数据转发，每条数据链路占用两个连接。

daemon   #daemon方式运行

nbproc 1

group nobody

user nobody

defaults

timeout server  86400s

timeout client  86400s

timeout connect 8640s

#log 127.0.0.1 local7.* warning

listen  xxxxx_80

bind 本机IP:80

mode tcp    #tcp模式，只转发，不分析

option tcpka

option srvtcpka

option clitcpka

server xxxxxx_80_src 目标IP:80 check inter 1000 rise 1 fall 2 #目标服务器定义

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