Apache+Tomcat的整合与负载均衡

参考文档：http://tomcat.apache.org/connectors-doc/webserver_howto/apache.html

1. 环境：CentOS5.8 64bit
2. 安装Apache
   这里我选择了yum 方式安装：yum install httpd  httpd-devel
3. 安装好之后，下载apache-tomcat  connector,去页面http://tomcat.apache.org/download-connectors.cgi查找一下linux下的源代码包，下载： wget http://labs.mop.com/apache-mirror//tomcat/tomcat-connectors/jk/tomcat-connectors-1.2.37-src.tar.gz
4. 解压并且进入代码目录： tar -xf tomcat-connectors-1.2.37-src.tar.gz && cd tomcat-connectors-1.2.37-src/native/
5. 编译mod_jk.so模块： ./configure --with-apxs=/usr/sbin/apxs (注意后面跟的参数是关键，如果你编译安装apxs可能在别的目录）
   make
6. 拷贝模块文件到apache默认的模块目录： cp apache-2.0/mod_jk.so  /etc/httpd/modules/
7. 在apache配置文件内引入该模块： vi /etc/httpd/conf/httpd.conf
   插入  LoadModule jk_module modules/mod_jk.so
   在apache的 conf.d目录下，添加有关mod_Jk的配置： vi /etc/httpd/conf.d/mod_jk.conf
   

   ###### 指出mod_jk模块工作所需要的工作文件workers.properties的位置
   JkWorkersFile /etc/httpd/conf/workers.properties
   
   ###### Where to put jk logs
   JkLogFile /var/log/mod_jk.log
   
   ###### Set the jk log level [debug/error/info]
   JkLogLevel info
   
   ###### Select the log format
   JkLogStampFormat "[%a %b %d %H:%M:%S %Y]"
   
   ###### JkOptions indicate to send SSL KEY SIZE,
   JkOptions  +ForwardKeySize +ForwardURICompat -ForwardDirectories
   
   ###### JkRequestLogFormat set the request format
   JkRequestLogFormat "%w %V %T

    

8. 添加workers.properties文件: vi /etc/httpd/conf/workers.properties

   worker.list=worker1,worker2,worker3,worker4,worker5,loadbalance1,jkstatus
   
   ####### Set properties for worker1
   worker.worker1.type=ajp13
   worker.worker1.host=localhost
   worker.worker1.port=8031
   worker.worker1.lbfactor=50
   worker.worker1.socket_keepalive=1
   worker.worker1.socket_timeout=300
   
   ####### Set properties for worker2
   worker.worker2.type=ajp13
   worker.worker2.host=localhost
   worker.worker2.port=8033
   worker.worker2.lbfactor=50
   worker.worker2.socket_keepalive=1
   worker.worker2.socket_timeout=300
   
   ####### Set properties for worker3
   worker.worker3.type=ajp13
   worker.worker3.host=localhost
   worker.worker3.port=8035
   worker.worker3.lbfactor=50
   worker.worker3.socket_keepalive=1
   worker.worker3.socket_timeout=300
   
   ####### Set properties for worker4
   worker.worker4.type=ajp13
   worker.worker4.host=localhost
   worker.worker4.port=8037
   worker.worker4.lbfactor=50
   worker.worker4.socket_keepalive=1
   worker.worker4.socket_timeout=300
   
   ####### Set properties for worker5
   worker.worker5.type=ajp13
   worker.worker5.host=localhost
   worker.worker5.port=8039
   worker.worker5.lbfactor=50
   worker.worker5.socket_keepalive=1
   worker.worker5.socket_timeout=300
   
   ##set loadbalance 1 这里是负载均衡部分，使用了session sticky功能
   worker.loadbalance1.type=lb
   worker.loadbalance1.balance_workers=worker1,worker2,worker3,worker4,worker5
   worker.loadbalance1.sticky_session=true
   
   # Define a 'jkstatus' worker using status
   worker.jkstatus.type=status

9. 在apache主配置文件内编辑virtualhost
   

   <VirtualHost *:80>
       ServerAdmin webmaster@testserver.com
       DocumentRoot /www/docs/www.testserver.com
       ServerName www.testserver.com
       ErrorLog logs/www.testserver.com-error_log
       CustomLog logs/www.testserver.com-access_log common
       <Location /*>
           JkMount   loadbalance1
       </Location>
      <Location /jkmanager/>
         JkMount jkstatus
         Order deny,allow
         Deny from all
         Allow from 192.168.1.1
      </Location>
   </VirtualHost>

    

10. 重启apache: /etc/init.d/httpd restart

注：引用本文，请注明来自：http://www.cnblogs.com/helloLinux/archive/2012/07/02/2573297.html

 

附录：Ubuntu12.04 环境下

安装apache： apt-get install apache2

安装devel包： apt-get install apache2-dev

apxs现在叫做 apxs2