Tomcat+nginx Load Balancing cluster

on-line environment Nginx+tomcat Web site Topology Architecture

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Server Software Requirements:

Host	IP Address
192.168.1.102	style= font-size:14px nginx-1.6.0.tar.gz
Tomcat1	192.168.1.100	style= font-size:14px jdk-7u65-linux-x64.gz 2.apache-tomcat-7.0.54.tar.gz
Tomcat2	192.168.1.101	1.jdk-7u65-linux-x64.gz 2.apache-tomcat-7.0.54.tar.gz

Install and configure the Java Environment:

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Check the installation version

4. Install the configuration Tomcat:

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// decompression file and generate apache-tomcat-7.0.54 , move to a common /usr/local under and renamed to TOMCAT7,

Start the service, check the listening port

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5. set up a Java web site:

( 1 "first create web catalog   ( 2 index.jsp

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Enter the tomcat configuration file,/usr/local/tomcat7/conf/server.vml

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(3) modify Tomcat 's server.xml file:

define a host, the domain name is localhost,appBase define the application base directory,Unpackwars define whether to extract automatically,autodeploy Define whether to deploy automatically

<contextdocbase= "/web/webapp1" path= "" reloadable= "false" >

</Context>

Description:The context defines the virtual host,path Specifies the directory to access,docBase defines the page directory, and when the application changes, automatically mounts without restarting Tomcat

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( 4 ) Restart the service TOMCAT2 Server Ibid .

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6.nginx Server configuration:

Nginx configuration for reverse proxy and load balancing

(i) Installation of Nginx

1. Install the relevant package

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2. Create program users and Groups

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3. Installing nginx

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--with-user,--with-group Specify users and Groups

--with-file-aio Enable file modification support

--with-http_stub_status_module Enable status statistics

-with-http_gzip_static_module enabling gzip static compression

Ith-http_flv_module enable flv module, providing time-based offset files seeking memory usage

//--with-http_ssl_module enabled SSL Module

(ii), configuration Nginx

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HTTP {

........

Upstream Tomcat_server {

Server 192.168.1.2:8080 weight=1;

Server 192.168.1.3:8080 weight=1;

}// Set the server list for load balancing,the weight parameter represents the permission, the higher the weight value, the greater the probability of being divided.

server {

Listen 80;

server_name localhost;

#charset Koi8-r;

#access_log Logs/host.access.log Main;

Location/{

root HTML;

Index index.html index.htm;

Proxy_pass Http://tomcat_server; Implementing a reverse proxy

}

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(c), start Nginx Process

/usr/local/nginx/sbin/nginx-c/usr/local/nginx/conf/nginx.conf

Five . internal test reverse proxy and load balancing test

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Tomcat+nginx Load Balancing cluster