8080 8980
8005 8905
8009 8909
4000 4001
1.安装httpd
tar zxvf httpd-2.2.17.tar.gz
cd httpd-2.2.17
./configure --prefix=/usr/local/apache2 --enable-so
make && make install
2.安装JDK
chmod +x jdk-6u18-linux-i586.bin
./jdk-6u18-linux-i586.bin
mv jdk1.6.0_18 /usr/local/jdk
rm -rf /usr/bin/java
rm -rf /usr/bin/javac
ln -s /usr/local/jdk/bin/java /usr/bin/java
ln -s /usr/local/jdk/bin/javac /usr/bin/javac
[root@CentOSlamp src]# java -version
java version "1.6.0_18"
Java(TM) SE Runtime Environment (build 1.6.0_18-b07)
Java HotSpot(TM) Client VM (build 16.0-b13, mixed mode, sharing)
ln -s /usr/local/jdk/jre /usr/local/jre
设置环境变量
vi /etc/profile 添加如下内容
JAVA_HOME=/usr/local/jdk
export JAVA_HOME
JRE_HOME=/usr/local/jre
export JRE_HOME
运行，使环境变量生效
source /etc/profile
3.安装tomcat
tar zxvf apache-tomcat-7.0.6.tar.gz
mv apache-tomcat-7.0.6 /usr/local/tomcat1
tar zxvf apache-tomcat-7.0.6.tar.gz
mv apache-tomcat-7.0.6 /usr/local/tomcat2
4.安装mod_proxy.so和mod_proxy_ajp.so,mod_proxy_balancer.so模块
cd /usr/local/src/httpd-2.2.17/modules/proxy
/usr/local/apache2/bin/apxs -i -a -c mod_proxy.c proxy_util.c
/usr/local/apache2/bin/apxs -i -a -c mod_proxy_ajp.c ajp*.c
/usr/local/apache2/bin/apxs -i -a -c mod_proxy_balancer.c
5. 配置httpd.conf 文件
vi /usr/local/apache2/conf/httpd.conf
ProxyPass /images !
ProxyPass /css !
ProxyPass /js !
ProxyRequests Off
ProxyPass /examples balancer://mycluster/ stickysession=JSESSIONID
ProxyPassReverse /examples balancer://mycluster/ stickysession=JSESSIONID
<Proxy balancer://mycluster>
BalancerMember ajp://192.168.15.124:8009/examples/ route=worker1 loadfactor=1
BalancerMember ajp://192.168.15.124:8909/examples/ route=worker2 loadfactor=1
</Proxy>
SetHandler balancer-manager
6.编辑server.xml文件
修改相关对应端口，如果在不同的机器上则不需要修改
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<!-- A "Connector" using the shared thread pool-->
<!--
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<Server port="8005" shutdown="SHUTDOWN">
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
7.复制tomcat下webapps下的文件到/usr/local/apache2/htdocs
cp –R /usr/local/tomcat1/webapps/* /usr/local/apache2/htdocs
8.启动tomcat 和httpd
/usr/local/tomcat1/bin/startup.sh
/usr/local/tomcat2/bin/startup.sh
/usr/local/apache2/bin/apachectl start
到这里负载均衡完成
配置集群