实验规划:
| 主机名 | IP地址 | 角色 |
| node01 | 192.168.112.128 | web01 |
| node02 | 192.168.112.129 | web02 |
| node03 | 192.168.112.130 | haproxy |
操作系统信息:
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[root@node03 ~]
# cat /etc/redhat-release
CentOS release 6.6 (Final)
[root@node03 ~]
# uname -a
Linux node03 2.6.32-504.el6.x86_64
#1 SMP Wed Oct 15 04:27:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
[root@node03 ~]
#
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安装haproxy:
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[root@node03 ~]
# yum -y install haproxy nginx php
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安装nginx php:
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[root@node01 ~]
# yum -y install nginx
[root@node02 ~]
# yum -y install nginx
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node01和node02上nginx配置文件:
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user nginx;
worker_processes 4;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
}
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node03上haproxy和nginx配置文件
haproxy:
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global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
# turn on stats unix socket
stats socket /var/lib/haproxy/stats
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
listen s-monitor *:90
mode http
stats enable
stats refresh 5s
stats realm New0ldName
stats uri /
stats auth user:123456
frontend main *:80
acl url_static path_beg -i /static /images /javascript /stylesheets
acl url_static path_end -i .jpg .gif .png .css .js
use_backend static if url_static
default_backend app
backend static
balance roundrobin
server static 127.0.0.1:8080 check
backend app
balance roundrobin
server app1 192.168.112.128:80 check
server app2 192.168.112.129:80 check
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nginx配置文件:
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user nginx;
worker_processes 4;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
user nginx;
worker_processes 4;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 8080;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
root /data/website/app;
location / {
#root html;
index index.php index.html index.htm;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ \.php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
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haproxy平滑重启操作:
(1)如果是编译安装
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[root@node03 ~]
#/usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/conf/haproxy.conf -sf `cat /usr/local/haproxy/var/run/haproxy.pid`
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或者
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[root@node03 ~]
#/usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/conf/haproxy.conf -st `cat /usr/local/haproxy/var/run/haproxy.pid`
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(2)如果是yum安装
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[root@node03 ~]
# /etc/init.d/haproxy reload
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开启日志记录：
编辑/etc/rsyslog.conf和/etc/sysconfig/syslog文件
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[root@~]
# vim /etc/rsyslog.conf:
13 $ModLoad imudp
#将注释去除
14 $UDPServerRun 514
#将注释去除
local3.*
/var/log/haproxy
.log
#最下方添加
local0.*
/var/log/haproxy
.log
#最下方添加
[root@~]
#vi /etc/sysconfig/syslog
#######################################
把SYSLOGD_OPTIONS=
"-m 0"
改成 SYSLOGD_OPTIONS=
"-r -m 0"
#######################################
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相关解释说明:
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-r:打开接受外来日志消息的功能,其监控514 UDP端口;
-x:关闭自动解析对方日志服务器的FQDN信息,这能避免DNS不完整所带来的麻烦;
-m:修改syslog的内部mark消息写入间隔时间(0为关闭),例如240为每隔240分钟写入一次"--MARK--"信息;
-h:默认情况下,syslog不会发送从远端接受过来的消息到其他主机,而使用该选项,则把该开关打开,所有
接受到的信息都可根据syslog.conf中定义的@主机转发过去
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重启rsyslog服务
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[root@~]
# systemctl restart rsyslog.service
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本文转自027ryan 51CTO博客，原文链接：http://blog.51cto.com/ucode/1880704，如需转载请自行联系原作者
