CentOS deployment simple tomcat and load balancing

CentOS deployment simple tomcat and load balancing

Experimental topology:

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Experiment Preparation:

Prepare the Apache-tomcat and JDK and nginx packages, which I use

Jdk-7u65-linux-x64.gz

Apache-tomcat-7.0.54.tar.gz

Nginx-1.9.4.tar.gz

Stop Iptables and SELinux before the experiment

Sed-i '/selinux/s/enforcing/disabled/g '/etc/selinux/config/etc/init.d/iptables stop

I'm using it here.

Jdk-7u65-linux-x64.gz

Apache-tomcat-7.0.54.tar.gz

Nginx-1.9.4.tar.gz

Both Tomcat and JDK are free-to-install packages, just unzip the move and enable!

Tar zxf jdk-7u65-linux-x64.gz

MV Jdk1.7.0_65/usr/local/java

Add the PATH environment variable for Java

vim/etc/profile.d/java.sh

Export Java_home=/usr/local/java

Export path= $PATH: Java_home/bin

: Wq

. /etc/profile.d/java.sh

View Java version

Java-version

Deploying Tomcat

Tar zxf apache-tomcat-7.0.54.tar.gz

MV APACHE-TOMCAT-7.0.54/USR/LOCAL/TOMCAT7

Start Tomcat

/usr/local/tomcat7/bin/startup.sh

Access test

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The above page shows that Tomcat is complete!

To deploy a Tomcat directory-based virtual host:

Build a directory of virtual hosts and test Web pages

Mkdir-pv/web/webapp1

vim/web/webapp1/index.jsp

<%@ page language= "java" import= "java.util.*" pageencoding= "UTF-8"%>
: Wq
Edit the Tomcat configuration file Server.xml Add the following code:
Vim/usr/local/tomcat7/conf/server.xml
<context docbase= "/web/webapp" path= "" reloadable= "false" >
</Context>
The location is as follows:
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Restarting the service can be as follows:
/usr/local/tomcat7/bin/shutdown.sh
/usr/local/tomcat7/bin/startup.sh
The access page is as follows:
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If the above page indicates that your directory-based virtual host has been completed!

 
  
 
If you have done it all, and have succeeded! Then I will congratulate you, according to the above configuration to build a tomcat to prepare for the back!

 
  
 
Build a Nginx+tomcat load Balancing cluster:
First we need two servers to build Tomcat, and a server to build Nginx!
For the system I recommend the best here!
Deploying Nginx Servers
To install a dependency package:
Yum-y Install pcre-devel zlib-devel openssl-devel OpenSSL

Create the required user www
Useradd-m-s/bin/false www

Unzip the Nginx and enter the directory
Tar zxf nginx-1.9.4.tar.gz
CD nginx-1.9.4

Compile and install Nginx
./configure--prefix=/usr/local/nginx \
--USER=WWW \
--GROUP=WWW \
--with-file-aio \
--with-http_stub_status_module
--with-http_gzip_static_module
--with-http_flv_module--with-http_ssl_module
Make &&make Install

Edit the Nginx configuration file by adding the following code:
Vim/usr/local/nginx/conf/nginx.conf
Upstream Tomcat_server {server 99.99.99.4:8080 weight=1;       Server 99.99.99.5:8080 weight=1; }proxy_pass Http://tomcat_server;
Add the following location:
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Check nginx configuration file for errors:
/usr/local/nginx/sbin/nginx-t

Start Nginx:
/usr/local/nginx/sbin/nginx

To see if the port is started:
NETSTAT-UTPLN |grep 80

Access test:
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Press F5 constantly refreshed, two pages constantly switching. Indicates that a simple Tomcat+nginx load Balancer cluster has been completed!
Error Summary:
All kinds of compilation did not succeed, remember to check whether the dependency package is complete!

After start-up access if it doesn't work, check the configuration file and Web page for errors.

If an error occurs with a word like CPU, you need to check the compatibility between the software and the system.

If there is a new error please leave a message, thank you!
This article is from the "XXX" blog, please be sure to keep this source http://moumou.blog.51cto.com/9995443/1689084
CentOS deployment simple tomcat and load balancing