线上Haproxy配置
安装平台:centos 6.3
cd /srv
wget http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.22.tar.gz
#1.4.22版本比较稳定,现在最新版本是1.4.23
tar zxvf haproxy-1.4.22.tar.gz
cd haproxy-1.4.22
make TARGET=linux26 PREFIX=/usr/local/haproxy install
mkdir /usr/local/haproxy/conf -p
groupadd -r haproxy
useradd -r -M -g haproxy -s /sbin/nologin haproxy
vim /usr/local/haproxy/conf/haproxy.cfg
#写入以下内容,根据自己环境修改IP地址
global
log 127.0.0.1 local0 info
maxconn 4096
user haproxy
group haproxy
daemon
nbproc 1
pidfile /var/run/haproxy.pid
defaults
log global
mode http
option dontlognull
retries 3
option redispatch
maxconn 20000
contimeout 5000
clitimeout 50000
srvtimeout 50000
#根据自己需求配置,HA_IP为haproxy的IP地址,IP为后端服务器的IP地址,下面只写了两个实例
#mysql服务器
listen server_mysql_name HA_IP:3306
mode tcp
maxconn 200
balance roundrobin
server mysql_name_A mysql_IP:3306 check port 3306 inter 5s rise 2 fall 3
server mysql_name_B mysql_IP:3306 check port 3306 inter 5s rise 2 fall 3
#web服务器
listen tomcat-app *:8080
maxconn 2000
mode http
balance source
option httpclose # disable keep-alive
option forwardfor
option httpchk GET /safe
server server_web_A IP:8080 check inter 2000 fall 3
server server_web_B IP:8080 check inter 2000 fall 3
#监控管理
listen admin_status
mode http
bind HA_IP:8899
option httplog
log global
stats enable
stats refresh 10s
stats hide-version
stats realm Haproxy\ Statistics
stats uri /admin-status
stats auth admin:admin
stats admin if TRUE
#启动脚本
cd /etc/init.d/
vim haproxy
#!/bin/sh
# haproxy
# chkconfig: 35 85 15
# processname: haproxy
# config: /usr/local/haproxy/conf/haproxy.cfg
# pidfile: /var/run/haproxy.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
config="/usr/local/haproxy/conf/haproxy.cfg"
exec="/usr/local/haproxy/sbin/haproxy"
prog=$(basename $exec)
[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
lockfile=/var/lock/subsys/haproxy
check() {
$exec -c -V -f $config
}
start() {
$exec -c -q -f $config
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
echo -n $"Starting $prog: "
# start it up here, usually something like "daemon $exec"
daemon $exec -D -f $config -p /var/run/$prog.pid
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
# stop it here, often "killproc $prog"
killproc $prog
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
$exec -c -q -f $config
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
stop
start
}
reload() {
$exec -c -q -f $config
if [ $? -ne 0 ]; then
echo "Errors in configuration file, check with $prog check."
return 1
fi
echo -n $"Reloading $prog: "
$exec -D -f $config -p /var/run/$prog.pid -sf $(cat /var/run/$prog.pid)
retval=$?
echo
return $retval
}
force_reload() {
restart
}
fdr_status() {
status $prog
}
case "$1" in
start|stop|restart|reload)
$1
;;
force-reload)
force_reload
;;
checkconfig)
check
;;
status)
fdr_status
;;
condrestart|try-restart)
[ ! -f $lockfile ] || restart
;;
*)
echo $"Usage: $0 {start|stop|status|checkconfig|restart|try-restart|reload|force-reload}"
exit 2
esac
chmod 755 /etc/init.d/haproxy
/etc/init.d/haproxy start|stop|restart