Nginx+tomcat Load Balancing

Nginx+tomcat is currently the mainstream Java Web architecture, how to let nginx+tomcat work at the same time, can also say how to use Nginx reverse proxy tomcat back-end equalization? The direct installation configuration is as follows:

1. JAVA JDK Installation:

#下载相应的jdk软件包 and then unzip the installation, I have the package name:jdk-7u25-linux-x64.tar.gz     tar -zxvf   jdk-7u25-linux-x64.tar.gz  mkdir -p /usr/java/                         #创建java目录mv  jdk1.7.0_25/ /usr/local/java/           #修改java目录 # Then configure the environment variables so that the JDK can be referenced anywhere, and the following statement is added to the last side of the configuration:      vi /etc/profile :       java_home=/usr/local/java    java_bin=/usr/local/java/binjre _home=/usr/local/java/jrepath= $PATH:/usr/local/java/bin:/usr/local/java/jre/binclasspath=/usr/local/java/jre/ lib:/usr/local/java/lib:/usr/local/java/jre/lib/charsets.jar    #source  /etc/profile     #使环境变量马上生效         #java   --version      #查看java版本, see the JDK version asRepresents JAVA JDK installation success. 

2, Nginx Installation:

wget http://nginx.org/download/nginx-1.2.6.tar.gz useradd www tar zxvf nginx-1.2.6.tar.gz cd nginx-1.2.6 /./configure--user=www--group=www--prefix=/usr/local/nginx \--with-http_stub_status_module \--WITH-HTTP_SS       L_module make && make install #Nginx安装完毕, then use the command:/usr/local/nginx/sbin/nginx-t Test OK, on behalf of Nginx installation success. /usr/local/nginx/sbin/nginx Enter to start Nginx, you can visit http://ip/to see the default page Nginx.

3. Tomcat Installation:

#官方网站下载tomcat:       cd /usr/src  && tar  zxvf  apache-tomcat-6.0.30.tar.gz        #直接解压就可以使用, unzip to complete execution, Copy two tomcat at a time, named tomcat1 tomcat2       mv apache-tomcat-6.0.30   /usr/local/tomcat1      cp /usr/local/tomcat1    /usr/local/tomcat2  -r        #分别修改tomcat1和tomcat2   Ports, Here are three ports that need to be modified, respectively, as follows:       shutdown  Port:8005   is primarily responsible for initiating the shutdown .        AJP Port:8009  is primarily responsible for AJP equalization (commonly used in Apache and Tomcat integration)         http Port:8080  can be accessed directly via Web page (nginx+tomcata consolidation)         #注 *   If the TOMCAT1 three ports are: 8005 8009 8080&NBSP, then the TOMCAT2 port is +1 on this basis, which is:8006 8010 8081         #一Server, the port cannot be duplicated, otherwise it will error.         #修改完端口后, then launch two tomcat, start command for:         #如何提示没有这个文件或者权限不足, the tomcat  Bin directory is required to give execute permission to the Sh file:chmod o+x   *.sh        /usr/local/tomcat1/bin/startup.sh       /usr/local/ tomcat2/bin/startup.sh        #启动后, you can see 6 ports using netstat -tnl , This means that the TOMCAT1 TOMCAT2 successfully started. You can use http://ip:8080  http://ip:8081 to access the Tomcat default page.

#如果需要修改tomcat发布目录为自己制定的目录, you need to make the following adjustments to create two publish directories:

Mkdir-p/usr/webapps/www1mkdir-p/USR/WEBAPPS/WWW2

Edit Vi/usr/local/tomcat1/conf/server.xml Add content to the last previous line:

2. Edit Vi/usr/local/tomcat2/conf/server.xml Add content to the last previous line:

3.TOMCAT1 Publish Directory content:

vim/usr/webapps/www1/index.jsp tomcat_1 JSP Test Page

4.tomcat2 Publish Directory content:

Tomcat_2 JSP Test Page

Then visit http://ip:8080, 8081 to view the test content.

5, Nginx+tomcat Integration:

user www www;   worker_processes 8;   pid /usr/local/nginx/ nginx.pid;   worker_rlimit_nofile 102400;   events   {    use epoll;   worker_connections 102400;   }    http   {     include        mime.types;     default_type  application/octet-stream;      fastcgi_intercept_errors on;     charset  utf-8;      server_names_hash_bucket_size 128;     client_header_ buffer_size 4k;     large_client_header_buffers 4 32k;      client_max_body_size 300m;     sendfile on;      tcp_nopush&nbSp;    on;           keepalive_ timeout 60;           tcp_nodelay on;      client_body_buffer_size  512k;          proxy_connect_timeout    5;     proxy_read_timeout        60;     proxy_send_timeout        5;     proxy_buffer_size         16k;     proxy_buffers             4 64k;     proxy_busy_buffers_size 128k;      proxy_temp_file_write_size 128k;            gzip on;     gzip_min_length  1k;     gzip_buffers      4 16k;     gzip_http_version 1.1;      gzip_comp_level 2;     gzip_types        text/plain application/x-javascript text/css application/xml;      gzip_vary on;         ## #2012 -12-19 change  nginx logs   log_format  main   ' $http _x_forwarded_for -   $remote _user [$time _local]  "$request"   "                  ' $status   $body _bytes_sent  "$http _referer"   '                  ' "$http _user_ Agent "   $request _TIME  $remote _addr ';                      upstream web_app {    server  127.0.0.1:8080 weight=1 max_fails=2 fail_timeout=30s;    server  127.0.0.1:8081 weight=1 max_fails=2 fail_timeout=30s;   }        ### #chinaapp .sinaapp.com   server {        listen 80;       server_name   chinaapp.sinaapp.com;       index index.jsp index.html  index.htm;        #发布目录/data/www        root  /data/www;                location /      &nbSp {       proxy_next_upstream http_502 http_504 error  timeout invalid_header;       proxy_set_header host  $ host;       proxy_set_header x-real-ip  $remote _addr;        proxy_set_header X-Forwarded-For  $proxy _add_x_forwarded_for;        proxy_pass http://web_app;        expires      3d;       }           }       }

#注 * Server segment Proxy_pass defined Web_app needs to be consistent with the Web_app defined in upstream, otherwise the server cannot find a balance.  

This article is from the "Ming Linux blog" blog, be sure to keep this source http://zhaijunming5.blog.51cto.com/10668883/1694646

Nginx+tomcat Load Balancing