HAProxy 7层 负载均衡
https://www.cnblogs.com/jicki/p/5546902.html HAProxy
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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