apache2.4+tomcat集群

it2026-04-21 11

非常感谢 http://andashu.blog.51cto.com/8673810/1381369

一、安装JDK

tar -xzvf xxx.tar.gz chmod 777 -R /opt/jdk1.6.0_45/ 配置 JAVA环境变量： vim /root/.bashrc 在最后添加以下内容：

export JAVA_HOME=/opt/jdk1.6.0_45 export PATH=$JAVA_HOME/bin:$PATH export CLASSPATH=".;$JAVA_HOME/lib/dt.jar;$JAVA_HOME/lib/tools.jar:$CLASSPATH"

使环境变量生效： source /root/.bashrc 测试配置是否成功： java –version

二、安装TOMCAT

apache-tomcat-7.0.41.tar.gz

#tar -zxvf apache-tomcat-6.0.18.tar.gz #./apache-tomcat-6.0.18/bin/startup.sh

可访问 http://192.168.0.101:8080

重启命令：

#./apache-tomcat-6.0.18/bin/shutdown.sh

#./apache-tomcat-6.0.18/bin/startup.sh

三、TOMCAT集群

1.两个tomcat

#mv apache-tomcat-6.0.18 /usr/local/TC6_A #cd /usr/local #cp -a TC6_A TC6_B

2.修改两个Tomcat 实例监听的端口

# vim /usr/local/TC6_A/conf/server.xml

Server<Server port="8005" shutdown="SHUTDOWN"><Server port="10005" shutdown="SHUTDOWN">20005AJP Connector

<Connector port = "8009" protocol = "AJP/1.3" redirectPort = "8443" />

<Connector port = " 10009 " protocol = "AJP/1.3" redirectPort = " 10043 " />

10009 20043

HTTP

Connector

20001 20043Engine

<Engine name = "Standalone" defaultHost = "localhost" jvmRoute = " Tomcat1"> Tomcat2 Cluster<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" />

<Manager className = "org.apache.catalina.ha.session.DeltaManager"

expireSessionsOnShutdown = "false"

notifyListenersOnReplication = "true" />

<Membership className = "org.apache.catalina.tribes.membership.McastService"

address = "228.0.0.4"

port = "45564"

frequency = "500"

dropTime = "3000" />

<Receiver className = "org.apache.catalina.tribes.transport.nio.NioReceiver"

address = "auto"

port = "4000"

autoBind = "100"

selectorTimeout = "5000"

maxThreads = "6" />

</Sender>

</Channel>

<Deployer className = "org.apache.catalina.ha.deploy.FarmWarDeployer"

tempDir = "/tmp/war-temp/"

deployDir = "/tmp/war-deploy/"

watchDir = "/tmp/war-listen/"

watchEnabled = "false" />

</Cluster>

可访问 http://192.168.0.101:10001 http://192.168.0.101:20001

3、测试页面

/usr/local/TC6_A/webapps/ROOT 、/usr/local/TC6_B/webapps/ROOT 目录下 vim Hello.jsp。

<%@ page contentType="text/html;charset=GBK"%> <html> <head> <title>Tomcat 测试 </title> </head> <body> <font color="red" size="20"> <!— 使用 out 内建对象打印一条消息到输出页面 --> <% out.print( "Tomcat 集群测试 A ！！！ " ); %> </font> </body> </html>

TC6_B的改一行输出： <% out.print( "Tomcat 集群测试 B ！！！ " ); %>

可访问 http://192.168.0.101:10001/Hello.jsp 、http://192.168.0.101:20001/Hello.jsp

四、Apache负载均衡器

1.安装

# tar -zxvf httpd-2.4.10.tar.gz

# cd httpd-2.4.10

#./configure --prefix=/usr/local/apache2 --enable-cache --enable-disk-cache -enable-mem-cache --enable-file-cache --with-ssl --enable-ssl --enable-so --enable-mime-magic --enable-proxy --enable-proxy-ajp --enable-proxy-balancer --enable-mods-shared=most --with-mpm=worker --with-apr-util=/usr/local/apr-util --with-pcre=/usr/local/pcre/

# make # make install

2.配置Apache 为 Tomcat 集群的负载均衡器

vim /usr/local/apache2/conf/httpd.conf

加载：

LoadModule rewrite_module modules/mod_rewrite.so LoadModule slotmem_shm_module modules/mod_slotmem_shm.so LoadModule speling_module modules/mod_speling.so LoadModule ssl_module modules/mod_ssl.so

##################################################

#：如果只是修改配置不编译重装的话打开：

LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule slotmem_shm_module modules/mod_slotmem_shm.so

LoadModule speling_module modules/mod_speling.so LoadModule ssl_module modules/mod_ssl.so

##################################################

末尾添加：

ProxyRequests Off ProxyPass / balancer://myCluster/ <Proxy balancer://myCluster/> BalancerMember ajp://localhost:10009 route=Tomcat1 BalancerMember ajp://localhost:20009 route=Tomcat2 </Proxy>

说明：其中" myCluster "是集群的名称，" ajp://localhost:10009 route=Tomcat1 " 对应 Tomcat 集群中的 TC6_A 实例，" ajp://localhost:20009 route=Tomcat2 " 对应 Tomcat 集群中的 TC6_B 实例。

3.访问页面

重启apache httpd后，访问：http://192.168.0.101/Hello.jsp

由于 Apache 为 Tomcat 集群的负载均衡器，使用的是轮换算法，其均匀地将请求发送到集群中的各个 Tomcat 实例。因此轮换访问两个不同 Tomcat 实例中的 Hello.jsp 。

[root@centos1 opt]# netstat -tnlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1078/sshd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1554/master tcp 0 0 :::20009 :::* LISTEN 2427/java tcp 0 0 :::3306 :::* LISTEN 1452/mysqld tcp 0 0 :::80 :::* LISTEN 23130/httpd tcp 0 0 :::30001 :::* LISTEN 2471/java tcp 0 0 :::10001 :::* LISTEN 2396/java tcp 0 0 :::81 :::* LISTEN 1564/httpd tcp 0 0 ::ffff:127.0.0.1:30005 :::* LISTEN 2471/java tcp 0 0 ::ffff:127.0.0.1:10005 :::* LISTEN 2396/java tcp 0 0 :::22 :::* LISTEN 1078/sshd tcp 0 0 :::30009 :::* LISTEN 2471/java tcp 0 0 :::10009 :::* LISTEN 2396/java tcp 0 0 ::1:25 :::* LISTEN 1554/master tcp 0 0 ::ffff:127.0.0.1:4000 :::* LISTEN 2396/java tcp 0 0 ::ffff:127.0.0.1:4001 :::* LISTEN 2427/java tcp 0 0 :::20001 :::* LISTEN 2427/java tcp 0 0 ::ffff:127.0.0.1:4002 :::* LISTEN 2471/java tcp 0 0 ::ffff:127.0.0.1:20005 :::* LISTEN 2427/java

转载于:https://www.cnblogs.com/stay-sober/p/4207312.html

相关资源：Apache2.4+Tomcat8.0集群安装--测试项目

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