nginx+多个tomcat的负载均衡

转自：http://www.open-open.com/lib/view/open1394854254103.html

tomcat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 [root@nan87 lnmp] # tar xvf nginx-1.4.5.tar.gz [root@nan87 lnmp] # cd nginx-1.4.5 [root@nan87 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 [root@nan87 nginx-1.4.5] # make && make install [root@nan87 nginx-1.4.5] # /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf              --启动nginx (2)配置DNS [root@nan87 ~] # 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" ; };    [root@nan87 ~] # 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 [root@nan87 lnmp] # rpm -ivh jdk-7u51-linux-x64.rpm [root@nan87 lnmp] # 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 [root@nan87 lnmp] # tar xvf apache-tomcat-7.0.52.tar.gz [root@nan87 lnmp] # mv apache-tomcat-7.0.52 /usr/local/tomcat   // 给tomcat添加JAVA主目录，在96行添加 [root@nan87 lnmp] # 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 [root@nan87 lnmp] # cd /usr/local/tomcat/bin/ [root@nan87 bin] # cp catalina.sh /etc/init.d/tomcat [root@nan87 bin] # vim /etc/init.d/tomcat #chkconfig: 2375 74 76 #description:tomcat start stop [root@nan87 bin] # chmod +x /etc/init.d/tomcat   (5)第二台tomcat [root@nan87 lnmp] # tar xvf apache-tomcat-7.0.52.tar.gz [root@nan87 lnmp] # mv apache-tomcat-7.0.52 /usr/local/tomcat2 // 给tomcat添加JAVA主目录，在96行添加 [root@nan87 lnmp] # 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 [root@nan87 lnmp] # cd /usr/local/tomcat2/bin/ [root@nan87 bin] # cp catalina.sh /etc/init.d/tomcat2 [root@nan87 bin] # vim /etc/init.d/tomcat2 #chkconfig: 2355 73 75 #description:tomcat start stop [root@nan87 bin] # chmod +x /etc/init.d/tomcat   // 更改配置 [root@nan87 lnmp] # cd /usr/local/tomcat2 // 更改三个端口 [root@nan87 tomcat2] # 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" />   [root@nan87 ~] # mkdir -p /var/www/ [root@nan87 ~] # cd /var/www/ [root@nan87 www] # mkdir ROOT        --注意必须是ROOT [root@nan87 www] # cd ROOT/ [root@nan87 html] # echo "Hello10.10.54.87" >index.jsp [root@nan87 html] # vim /usr/local/tomcat2/conf/server.xml   <Host name= "localhost"  appBase= "/var/www"          --appBase地址更改 (6)更改nginx配置 [root@nan87 html] # 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