【转载】nginx, tomcat 集群

【转载】nginx, tomcat 集群

转载地址：http://pengranxiang.iteye.com/blog/1135909

目标：同一台Linux主机上 安装 Nginx 和 两个 Tomcat 的集群



1.  下载安装 Nginx



地址：http://nginx.org/download/nginx-1.0.4.tar.gz


Shell代码：

    cd /usr/local/src/nginx  
      
    wget http://nginx.org/download/nginx-1.0.4.tar.gz  
      
    tar zxvf nginx-1.0.4.tar.gz  
      
    cd nginx-1.0.4  
      
    ./configure  
      
    make   
      
    make install   

2. Tomcat的下载安装配置，请参照 http://pengranxiang.iteye.com/admin/blogs/1135072



3. 配置 Nginx 负载均衡 来集成 两个Tomcat



修改配置文件：$NGNINX_HOME/conf/nginx.conf


Conf代码 ：

    #Nginx所用用户和组，window下不指定  
    user  nobody;  
      
    #工作的子进程数量（通常等于CPU数量或者2倍于CPU）  
    worker_processes  1;  
      
    #错误日志存放路径  
    #error_log  logs/error.log;  
    #error_log  logs/error.log  notice;  
    error_log  logs/error.log  info;  
      
    #指定pid存放文件  
    pid        logs/nginx.pid;  
      
      
    events {  
    #使用网络IO模型linux建议epoll，FreeBSD建议采用kqueue，window下不指定。  
    use epoll;  
      
    #允许最大连接数    
    worker_connections  1024;  
    }  
      
      
    http {  
        #mine.types内定义各文件类型映像  
        include       mime.types;  
      
        default_type  application/octet-stream;  
          
        #定义日志格式  
        #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;  
      
        #负载均衡集群设置  
        upstream tomcats {  
            server localhost:8080 weight=1;  
            server localhost:9080 weight=1;  
              
            #根据ip计算将请求分配各那个后端tomcat，许多人误认为可以解决session问题，其实并不能。  
            #同一机器在多网情况下，路由切换，ip可能不同  
            ip_hash;  
        }     
      
        server {  
            listen       80;  
            server_name  localhost;  
      
            #charset koi8-r;  
      
            #access_log  logs/host.access.log  main;  
      
            location / {  
                index  index.shtml;  
                proxy_pass  http://tomcats;  
                proxy_set_header    X-Real-IP   $remote_addr;  
                client_max_body_size    100m;  
            }  
      
            #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  /scripts$fastcgi_script_name;  
            #    include        fastcgi_params;  
            #}  
      
            # deny access to .htaccess files, if Apache's document root  
            # concurs with nginx's one  
            #  
            #location ~ /\.ht {  
            #    deny  all;  
            #}  
        }  
      
      
        # another virtual host using mix of IP-, name-, and port-based configuration  
        #  
        #server {  
        #    listen       8000;  
        #    listen       somename:8080;  
        #    server_name  somename  alias  another.alias;  
      
        #    location / {  
        #        root   html;  
        #        index  index.html index.htm;  
        #    }  
        #}  
      
      
        # HTTPS server  
        #  
        #server {  
        #    listen       443;  
        #    server_name  localhost;  
      
        #    ssl                  on;  
        #    ssl_certificate      cert.pem;  
        #    ssl_certificate_key  cert.key;  
      
        #    ssl_session_timeout  5m;  
      
        #    ssl_protocols  SSLv2 SSLv3 TLSv1;  
        #    ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;  
        #    ssl_prefer_server_ciphers   on;  
        #    location / {  
        #        root   html;  
        #        index  index.html index.htm;  
        #    }  
        #}  
      
    }  

安装以上配置即可实现集群。



关于Nginx启动



直接执行： $NGINX_HOME/sbin/nginx 即可



为了方便，可以自定义一个脚本文件



vim nginx.sh


Sh代码 ：

#!/bin/bash  
  
  
case $1 in  
    start)  
        /usr/local/nginx/sbin/nginx;  
        ;;  
    stop)  
        kill -2 `ps -ef|grep "/usr/local/nginx/sbin/nginx" | grep -v "grep"|awk '{print $2}'`  
        ;;  
    restart)  
        $0 stop  
        $0 start  
        ;;  
    *)  
        echo $"Usage; $0{start|stop|restart}"  
        exit 1  
esac  
exit 0