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  • 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

    ------------------------------------------------------------------------------------------------

    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

    -----------------------------------------------------------------------------------------

    #!/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

    --------------------------------------------------------------------------------------

    chmod +x /etc/init.d/haproxy

    1.4版本以后的 启动 出现

    --------------------------------------------------------------------------------------------------

    [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. ", curproxy->id);

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

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

        }

    修改 nbproc > 1 这个数值就可以...

    ----------------------------------------------------------------------------------------------------

    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

    -------------------------------------------------------------------------------

    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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  • 原文地址:https://www.cnblogs.com/jicki/p/5546902.html
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