HAProxy负载均衡安装配置

1.下载HAProxy

   http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.22.tar.gz

 

2. 安装haproxy

   #tar zxvf haproxy-1.4.22.tar.gz

   #cd haproxy-1.4.22

   #make TARGET=linux26

   #make install   

   

3. 创建haproxy用户和组

   #groupadd haproxy

   #useradd haproxy（useradd -g haproxy haproxy）

  

4、haproxy配置文件（/etc/haproxy.cfg）

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global

        log 127.0.0.1   local0

        maxconn 4096

        chroot /usr/local

        uid 99

        gid 99

        daemon

        nbproc 1

        pidfile /usr/local/run/haproxy.pid

        #debug  

        #quiet  

 

defaults

        log     127.0.0.1       local3

        mode    http

        option  dontlognull  

        retries 2

        maxconn 2000

        balance roundrobin

        contimeout      5000

        clitimeout      50000

        srvtimeout      50000

 

listen  web_proxy 0.0.0.0:1080

        option  httpchk GET /ping.jsp

        stats   uri     /haproxy-stats

 

listen  postgres

        bind    0.0.0.0:5433

        mode    tcp

        balance roundrobin

        server  db1 192.168.111.151:5432 weight 1 maxconn 10000 check inter 10s

        server  db2 192.168.111.152:5432 weight 1 maxconn 10000 check inter 10s

        server  db3 192.168.111.153:5432 weight 1 maxconn 10000 check inter 10s

        server  db4 192.168.111.154:5432 weight 1 maxconn 10000 check inter 10s

        server  db5 192.168.111.155:5432 weight 1 maxconn 10000 check inter 10s

        server  db6 192.168.111.156:5432 weight 1 maxconn 10000 check inter 10s

        server  db7 192.168.111.157:5432 weight 1 maxconn 10000 check inter 10s

        server  db8  192.168.111.158:5432 weight 1 maxconn 10000 check inter 10s

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5. 创建haproxy服务

1）创建haproxy启动脚本

#/etc/init.d/haproxy

文件内容如下

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#! /bin/sh

 

PROGDIR=/usr/local

PROGNAME=haproxy

DAEMON=$PROGDIR/sbin/$PROGNAME

CONFIG=/etc/$PROGNAME.cfg

PIDFILE=$PROGDIR/run/$PROGNAME.pid

DESC="HAProxy daemon"

SCRIPTNAME=/etc/init.d/$PROGNAME

 

# Gracefully exit if the package has been removed.

test -x $DAEMON || exit 0

start()

{

    echo -n "Starting $DESC: $PROGNAME"

    $DAEMON -f $CONFIG

    echo "."

}

stop()

{

    echo -n "Stopping $DESC: $PROGNAME"

    cat $PIDFILE | xargs kill

    echo "."

}

case "$1" in

  start)

    start

    ;;

  stop)

    stop

    ;;

*)

    echo "Usage: $SCRIPTNAME {start|stop}" >&2

    exit 1

    ;;

esac

exit 0
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启动服务

service haproxy start 

可能问题：

创建run目录

2）创建haxproxy服务

#chkconfig --add haproxy

#chkconfig haproxy on

 

六、测试

 

在浏览器里面输入：http://192.168.111.150:1080/haproxy-stats，可以看到haproxy的监控界面。