Nginx + Tomcat server Load balancer Configuration

Nginx + Tomcat server Load balancer Configuration
GuideNginx + tomcat is the mainstream Java Web architecture of Internet companies. nginx + tomcat can work stably at the same time. How can I use nginx to reverse proxy tomcat backend balancing? Directly install the configuration as follows:Install JAVA JDK

# Download the appropriate jdk software package, and then unzip the installation, here I package name: jdk-7u25-linux-x64.tar.gz

tar -xzf jdk-7u25-linux-x64.tar.gz ;mkdir -p /usr/java/ ;mv jdk1.7.0_25/ /usr/java/

# Configure the environment variable so that jdk can be referenced anywhere. The configuration is as follows:
# Add the following statement to the end of vi/etc/profile:

export JAVA_HOME=/usr/java/jdk1.7.0_25export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/libexport PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOMR/bin

# Source/etc/profile # make the environment variable take effect immediately
# Java -- version # Check the java version. If jdk 1.7.0 _ 25 is displayed, the java jdk is successfully installed.

Nginx Installation

wget http://nginx.org/download/nginx-1.2.6.tar.gz useradd wwwtar zxvf nginx-1.2.6.tar.gzcd nginx-1.2.6/./configure --user=www --group=www --prefix=/usr/local/nginx \--with-http_stub_status_module --with-http_ssl_modulemake && make install

# After Nginx is installed, run the command:/usr/local/nginx/sbin/nginx-t to test OK, which indicates that nginx is successfully installed.
/Usr/local/nginx/sbin/nginx press enter to start nginx. You can access http: // ip/to view the default nginx page.

Tomcat installation

# Download tomcat 6.0.30 or another version from the official website:

cd /usr/src  && tar xzf  apache-tomcat-6.0.30.tar.gz

# Directly decompress the package and run the package. Copy two tomcat servers and name them tomcat1 tomcat2.

mv apache-tomcat-6.0.30  /usr/local/tomcat1 cp /usr/local/tomcat1  /usr/local/tomcat2 -r

# Modify the tomcat1 and tomcat2 ports respectively. The three ports must be modified as follows:
Shutdown port: 8005 is mainly used to start and close.
Ajp port: 8009 is mainly used for ajp balancing (usually used for apache and tomcat integration)
Http port: 8080 can be directly accessed through web pages (nginx + tomcata integration)
# Note * If the three port numbers of tomcat1 are 8005 8009 8080, port 8006 + 1, that is, port 8010 8081
# On a server, the ports cannot be repeated; otherwise, an error is reported.
# After modifying the port, start two tomcat servers and run the following command:
# How to prompt whether the file does not exist or the permission is insufficient? The bin directory of tomcat needs to grant the execution permission to the sh file: chmod

o+x   *.sh /usr/local/tomcat1/bin/startup.sh/usr/local/tomcat2/bin/startup.sh

# After the instance is started, use netstat-tnl to view the six ports, that is, tomcat1 tomcat2 is successfully started. You can use http: // ip: 8080 http: // ip: 8081 to access the default tomcat page.

Customize directory Publishing

Edit vi/usr/local/tomcat1/conf/server. xml and add the following content to the last line:

<Context  path="" docBase="/usr/webapps/www1" reloadable="false"/> 

2. Edit vi/usr/local/tomcat2/conf/server. xml and add the following content to the last line:

<Context  path="" docBase="/usr/webapps/www2" reloadable="false"/> 

3. The release directory of tomcat1 is as follows:

4. tomcat2 release directory content:
Nginx + tomcat Integration
User www; worker_processes 8; pid/usr/local/nginx. pid; worker_rlimit_nofile 102400; events {use epoll; worker_connections 102400;} http {include mime. types; default_type application/octet-stream; requests on; charset UTF-8; Limit 128; limit 4 k; limit 4 32 k; client_max_body_size 300 m; sendfile on; tcp_nopush on; keepalive_timeout 60; tcp_nodelay on; Limit 512 k; proxy_connect_timeout 5; proxy_read_timeout 60; limit 5; Limit 16 k; proxy_buffers 4 64 k; Limit 128 k; Limit 128 k; gzip on; gzip_min_length 1 k; gzip_buffers 4 16 k; 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 logslog_format main '$ http_x_forwarded_for-$ remote_user [$ time_local] "$ request" ''$ status $ response" $ 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 = 30 s; server 127.0.0.1: 8081 weight = 1 max_fails = 2 fail_timeout = 30 s; }### chinaapp. sinaapp. comserver {listen 80; server_name chinaapp.sinaapp.com; index. jsp index.html index.htm; # Release directory/data/www root/data/www; location/{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 ;}}}
# Note * The web_app defined in the server segment proxy_pass must be consistent with the web_app defined in upstream. Otherwise, the server cannot find a balance.
# In the preceding configuration, the nginx + tomcat Reverse Proxy Server Load balancer configuration is complete. To separate Dynamic and Static traffic, you only need to add the following configuration in nginx.
# Configure Nginx dynamic/static Separation
Location ~ . *\. (Html | htm | gif | jpg | jpeg | bmp | png | ico | txt | js | css) $ {root/data/www; # expires defines that the user's browser cache time is three days. If the static page is not updated frequently, you can set a longer period to save bandwidth and relieve the pressure on the server. expires 3d ;}
      
        
 
         
From: http://wgkgood.blog.51cto.com/1192594/1529618
 
         
Address: http://www.linuxprobe.com/centos-directory-color/