nginx+多个tomcat的负载均衡
转自：http://www.open-open.com/lib/view/open1394854254103.htmltomcat处理文件扩展名为.jsp,.do的请求
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网络架构
nginx主机：10.10.54.87
tomcat主机1：10.10.54.87
tomcat主机2：10.10.54.87
(1)安装nginx-1.4.5
# tar xvf nginx-1.4.5.tar.gz
# cd nginx-1.4.5
# ./configure --prefix=/usr/local/nginx --user=apache --group=apache --with-http_stub_status_module --with-http_gzip_static_module --with-http_ssl_module
# make && make install
# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
--启动nginx
(2)配置DNS
# vim /etc/named.conf
options {
listen-on port 53 { any; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { any; };
recursion yes;
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
zone "dogs.com" IN {
type master;
file "named.dogs.com";
};
# vim /var/named/named.dogs.com
$TTL 600
@ IN SOA dogs.com. root (2014030401 1H 15M 1W 1D);
@ IN NS dogs.com.
dogs.com. IN A 10.10.54.87
www.dogs.com. IN A 10.10.54.87
bbs.dogs.com. IN A 10.10.54.87
hr.dogs.com. IN A 10.10.54.87
(3)安装JDK
# rpm -ivh jdk-7u51-linux-x64.rpm
# rpm -ql jdk-1.7.0_51-fcs.x86_64
--查看JDK的安装路径
/usr/java/jdk1.7.0_51
(4)安装配置tomcat
# tar xvf apache-tomcat-7.0.52.tar.gz
# mv apache-tomcat-7.0.52 /usr/local/tomcat
//给tomcat添加JAVA主目录，在96行添加
# vim /usr/local/tomcat/bin/catalina.sh
JAVA_HOME=/usr/java/jdk1.7.0_51
CATALINA_HOME=/usr/local/tomcat
//做启动脚本
# cd /usr/local/tomcat/bin/
# cp catalina.sh /etc/init.d/tomcat
# vim /etc/init.d/tomcat
#chkconfig: 2375 74 76
#description:tomcat start stop
# chmod +x /etc/init.d/tomcat
(5)第二台tomcat
# tar xvf apache-tomcat-7.0.52.tar.gz
# mv apache-tomcat-7.0.52 /usr/local/tomcat2
//给tomcat添加JAVA主目录，在96行添加
# vim /usr/local/tomcat2/bin/catalina.sh
JAVA_HOME=/usr/java/jdk1.7.0_51
CATALINA_HOME=/usr/local/tomcat2
//做启动脚本
# cd /usr/local/tomcat2/bin/
# cp catalina.sh /etc/init.d/tomcat2
# vim /etc/init.d/tomcat2
#chkconfig: 2355 73 75
#description:tomcat start stop
# chmod +x /etc/init.d/tomcat
//更改配置
# cd /usr/local/tomcat2
//更改三个端口
# vim conf/server.xml
##将8005改为其他，如：9005
<Server port="8005" shutdown="SHUTDOWN">
##将8080改为其他，如：9090
<Connector port="8080" protocol="HTTP/1.1"
##将8009改为其他，如：9009
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
# mkdir -p /var/www/
# cd /var/www/
# mkdir ROOT --注意必须是ROOT
# cd ROOT/
# echo "Hello10.10.54.87" >index.jsp
# vim /usr/local/tomcat2/conf/server.xml
<Host name="localhost" appBase="/var/www"
--appBase地址更改
(6)更改nginx配置
# vim /usr/local/nginx/conf/nginx.conf
user apache apache;
worker_processes 2;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
--添加下面内容
upstream www.dogs.com {
server 10.10.54.87:8080 weight=1;
server 10.10.54.87:9090 weight=1;
}
server {
listen 80;
server_name www.dogs.com;
root /var/www/html;
index index.html index.htm index.jsp;
location / {
proxy_pass http://www.dogs.com;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location ~ .*.jsp$ {
index index.jsp;
proxy_pass http://localhost:8080;
}
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ {
expires 30d;
}
location ~ .*\.(js|css)?$ {
expires 1h;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}
(7)测试
在浏览器中输入“http://www.dogs.com/”
刷新页面会有变化
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