Shulou(Shulou.com)06/02 Report--

Linux basic environment

The load balancer environment needs to be built under linux, so it is necessary to have a basic linux system. It is recommended that you install it according to the basic linux environment in http://edu.51cto.com/course/10209.html, so that you can avoid detours.

Installation of Apache

1. Download the http2.4 version and extract the http package

2 、 / configure-- prefix=/opt/apache2/-- with--mpm=worker-- enable-so-- enable-mods-shared=all-- enable-forward=shared-- enable-speling=shared-- enable-rewrite=shared-- enable-proxy=shared-- enable-proxy-ajp=shared-- enable-dav=shared-- enable-mod_proxy_http=shared-- enable-mod_proxy_ftp=shared-- enable-mod_proxy_ajp=shared-- enable-mod_proxy_balancer=shared-- enable-mod_proxy_connect=shared-- with-apr=/opt/apr-- with- Apr-util=/opt/apr-util-with-pcre=/opt/pcre

3. Make & & make install

PS: if there is a problem with running the command, you can usually solve the google error by yourself.

JDK installation

1. Download the corresponding version of Java1. 7

A) phenomenon: how to view the Linux version:

U name-m: 32-bit kernel if i386 or i686

2. Install Java1. seven

Download the rpm package, and then chmod gives 777 permissions before installing

3. Configure JDK environment variables

A 、 v i / etc/profile

Add at the end:

Export JAVA_HOME=/usr/java/jdk1.7.0_60

Export CLASSPATH=.:$JAVA_HOME/lib

Export PATH=$JAVA_HOME/bin:$PATH

B, source / etc/profile: reload environment variables

4. Java-version: verify whether the installation is successful

PS: I don't know where to download jdk. You can download it here: http://www.xqtesting.com/blog/jdk-103.html

Installation of Tomcat

Tomcat uses 7.0. installation and cluster configuration:

1. Decompress tomcat

2. Mv becomes tomcat1

3. Mv to / opt

4. Cp-r tomcat1 tomcat2

5. Write vi / etc/profile to export TOMCAT_HOME=/ opt / tomcat1

6. The server.xml file of tomcat1 remains the default, and the tomcat2 file is modified as follows

I. Vi / opt / tomcat 2 / conf/server.xml

ii. / Server port=8005 is changed to 9005 in command mode in VI

iii. / Connector port=8080 is changed to 9090 in command mode in VI

iv. / AJP=8009 is changed to 9009 in command mode in VI

7. Enter http://192.168.0.98:8080 and http://192.168.0.98:9090 on IE

You can see the following interface on the success!

Modify the http.conf file

Add: at the end of the httpd.conf:

I nclude / opt / apache2/conf/mod_jk.conf

Install mod_jk.conf

1. Go to http://www.apache.org/dist/tomcat/tomcat-connectors/jk/ to download

Tomcat-connectors-1.2.40-src.tar.gz

2 、 tar xzvf tomcat-connectors-1.2.40-src.tar.gz

3 、 mv tomcat-connectors-1.2.40-src / usr/local

4 、 cd / usr/local/tomcat-connectors-1.2.40-src/native

5. / configure-- with-java-home=/usr/java/jdk1.7.0_60-- with-apxs=/ opt / apache2/bin/apxs

6. Make & & make install

7 、 cp apache-2.0/mod_jk.so / opt / apache2/modules/

8. With the following picture, it will be a success:

Configure mod_jk.conf

Create the mod_jk.conf file under / opt / apache2/conf and write the following:

# load mod_jk Module

LoadModule jk_module / opt/apache2/modules/mod_jk.so

# load workers in the cluster

JkWorkersFile / opt/apache2/conf/workers.properties

# request processing allocation file for loading workers

JkMountFile / opt/apache2/conf/uriworkermap.properties

# specify the log output file of jk

# JkLogFile / opt/apache2/logs/mod_jk.log

# specify log level

# JkLogLevel warn

# specify the format of the log

JkLogStampFormat "[a% b% d% H:%M:%S% Y]"

# specify which requests are to be processed by tomcat. "controller" is the name of the load distribution controller specified in workers.propertise

JkMount / *. * controller

Configure the workers.properties file

Create the workers.properties file under / opt / apache2/conf. Configuration content:

# server list

Worker.list=controller,tomcat1,tomcat2

# = tomcat1=

Worker.tomcat1.port=8009 # ajp13 port number, which is configured in server.xml under tomcat. Default is 8009 (same as the AJP of your tomcat1)

The host address of worker.tomcat1.host=localhost # tomcat. If it is not local, enter the ip address.

Worker.tomcat1.type=ajp13

The weighted proportion of worker.tomcat1.lbfactor=1 # server. The higher the value, the more requests will be allocated.

# = tomcat2=

Worker.tomcat2.port=9009 # ajp13 port number, which is configured in server.xml under tomcat. Default is 8009 (same as the AJP of your tomcat2)

The host address of worker.tomcat2.host=localhost # tomcat. If it is not local, enter the ip address.

Worker.tomcat2.type=ajp13

The weighted proportion of worker.tomcat2.lbfactor=1 # server. The higher the value, the more requests will be allocated.

# = controller, load balancer controller =

Worker.controller.type=lb # server is called controller and is used for load balancer

Worker.retries=3 # retries

Worker.controller.balance_workers=tomcat1,tomcat2

# worker.controller.sticky_session=ture

Configure the uriworkermap.properties file

Create the uriworkermap.properties file under / opt / apache 2 / conf. Configuration content:

# all requests are handled by controller, the server

/ * = controller

# all requests that contain jkstatus are handled by status, the server

/ jkstatus=status

# the "!" here It means "not".

! / * .gif=controller

! / * .jpg=controller

! / * .png=controller

! / * .css=controller

! / * .js=controller

! / * .htm=controller

! / * .html=controller

Verify whether the load balancing is successful

1. Create a new test.jsp in / opt / tomcat1/webapps/test, as follows:

Tomcat 1 test

2. Create an identical test.jsp in / opt / tomcat2/webapps/test, with the following code:

Tomcat 2 test

3. Visit http://192.168.0.98/test/test.jsp and use multiple forcefully to access different tomcat (preferably using Firefox or chrome browser)

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