Centos6.2 for Nginx and Tomcat integration and load balancing (already practiced)

Centos6.2 do the Nginx and Tomcat the integration and load balancing

---------------------------------------------------------JDK------------------------------------------------------------- ------

1 : CentOS Install JDK6 on

JDK:

Jdk-6u34-linux-i586.bin

installation command:

./jdk-1_5_0_06-linux-i586.bin

The configuration environment variables are as follows :

Open/etc/profile with VI add the following at the end of the file

	Java_home= "/USR/LOCAL/JDK" Class_path= "$JAVA _home/lib:java_home/jre/lib" Path= ".: $PATH:%java_home/bin%" Export Java_home Catalina_home

Test:

Test whether the relevant Java information will appear through the java–version command, and the installation is successful.

---------------------------------------------------------JDK------------------------------------------------------------- ------

---------------------------------------------------------Nginx----------------------------------------------------------- -----

2 : Installing Nginx

Nginx:

Download: http://nginx.org/en/download.html

installation command:

Step 1:RPM-IVH nginx-release-centos-6-0.el6.ngx.noarch.rpm

Step 2:yum Install Nginx

Will show a lot of information, ask you OK not OK AH: Is this OK [y/n]:
Enter Y, the screen rolls for a while and then installs, the last hint "complete!" Is that it's finished.

Software Description:
1 configuration directory:/etc/nginx/
2 pid directory:/var/run/nginx.pid
3 Error log:/var/log/nginx/error.log

Nginx Common commands:

1 Start: Nginx
2 Restart: killall-hup nginx
3 Test configuration: Nginx–t

Test :

Using the command "Nginx" Start service, enter "127.0.0.1" in the browser if a welcome message appears stating that the installation was successful

---------------------------------------------------------Nginx----------------------------------------------------------- -----

---------------------------------------------------------Tomcat---------------------------------------------------------- ----

3 : Installing Tomcat

Tomcat:

Apache-tomcat-6.0.35.tar.gz

installation command:

Tar xvzf apache-tomcat-6.0.35.tar.gz (extracted to the current directory)

MV Tomcat (source)/usr/local/tomcat---move to target directory

Common commands:

Start: bin/startup.sh

Close: bin/shutdown.sh

Test:

127.0.0.1:8080 whether the Tomcat information page appears

---------------------------------------------------------Tomcat---------------------------------------------------------- ----

---------------------------------------------------------Integration-------------------------------------------------------------- ---

4 : Integrated Nginx and Tomcat

Add the following content in /etc/nginx/nginx.conf http {}

Upstream www.imeixi.cn {

Server 127.0.0.1:8080 weight=1; #转向tomcat

}

in/etc/nginx/conf.d/default.conf modified in

server{

Listen 80;

server_name localhost; It could be www.imeixi.cn.

Location/{

root HTML;

Index index.jsp index.htmlindex.htm;

Proxy_redirect off;

Proxy_set_header Host $host; #这一句至关重要

Proxy_set_header x-real-ip$remote_addr;

Proxy_set_header x-forwarded-for$proxy_add_x_forwarded_for;

Proxy_pass http://www.mygogo.com    ; This is referred to as forwarding (Nginx is configured as a reverse proxy)

}

Error_page 502 503 504/50x.html;

Location =/50x.html {

root HTML;

}

}

Need to restart Nginx to take effect after adding

	Killall-hup Nginx

Test:

Add a simple web app to tomcat (an HTML page is OK) and Access 127.0.0.1/yourweb (nginx-Figure 1) and 127.0.0.1:8080/yourweb (Tomcat Figure 2) to see if the same page appears. There is success

Figure 1

Figure 2

---------------------------------------------------------Integration-------------------------------------------------------------- ---

---------------------------------------------------------Load Balancing----------------------------------------------------------

5 : Load Balancing

1. Frame Composition:

2 , install a second tomcat:

Since the installation of two Tomcat on the same machine, the corresponding changes should be made as follows

1: Generate a new tomcat from the first Tomcat

	Cp/usr/local/tomcat/usr/local/tomcat2

2: Add the following at the end of the/etc/profile file "can be omitted"

Catalina_2_base=/usr/local/tomcat2 Catalina_2_home=/usr/local/tomcat2 Tomcat_2_home=/usr/local/tomcat2 Export Catalina_2_base catalina_2_home tomcat_2_home

3: At the top of the tomcat2/bin/catalina.sh file , add the following "can be omitted"

	Export JAVA_HOME=/USR/LOCAL/JDK Export path= $PATH: $JAVA _home/bin Export Classpath= $JAVA _home/lib Export Catalina_home= $CATALINA _2_home Export catalina_base= $CATALINA _2_base

Change Profile After you use the #source/etc/profile make the newly configured environment variable effective

4: Modify the Tomcat2/conf/server.xml file

Modify three listening ports

<server port= "8005" shutdown= "shutdown" > Changed to <server port= "9005" shutdown= "Shutdown" >

<connector port= "8080" protocol= "http/1.1"

connectiontimeout= "20000"

redirectport= "8443"/> Changed to <connector port= "9080" protocol= "http/1.1"

connectiontimeout= "20000"

redirectport= "8443"/>

<connector port= "8009" protocol= "ajp/1.3" redirectport= "8443"/> Changed to <connector port= "9009" protocol= "AJP/1.3" redirectport= "8443"/>

5: Publish the same web app under two Tomcat and start two Tomcat

	/usr/local/tomcat/bin/startup.sh /usr/local/tomcat2/bin/startup.sh

3 , configure Nginx

in/etc/nginx/nginx.conf Add the following HTTP {} in Add

Upstream www.imeixi.cn {

Server 127.0.0.1:8080 weight=1; Server localhost:8080 weight=1 (weight)

Server 127.0.0.1:9080 weight=1; Server localhost:9080 weight=5

}

in/etc/nginx/conf.d/default.conf changes are not made.

server {

Listen 80;

server_name www.imeixi.cn;

Location/{

root HTML;

Index index.jsp index.htmlindex.htm;

Proxy_redirect off;

Proxy_set_header Host $host; #这一句至关重要

Proxy_set_header x-real-ip$remote_addr;

Proxy_set_header x-forwarded-for$proxy_add_x_forwarded_for;

Proxy_pass http://www.mygogo.com;

}

Error_page 502 503 504/50x.html;

Location =/50x.html {

root HTML;

}

}

Need to restart Nginx to take effect after adding

	Killall-hup Nginx

4 , testing:

Access to www.imeixi.cn will be a round-trip access to two Tomcat

---------------------------------------------------------Load Balancing----------------------------------------------------------

Centos6.2 for Nginx and Tomcat integration and load balancing (already practiced)