Apache+Tomcat的整合与负载均衡

qq70191

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

• 环境：CentOS5.8 64bit
  
• 安装Apache
  这里我选择了yum 方式安装：yum install httpd  httpd-devel
  
• 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
  
• 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/
  
• 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
  
• 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/
  
• 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
  　　
  
  
• 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
  
• 在apache主配置文件内编辑virtualhost
  
  
  
  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
  
  JkMount   loadbalance1
  
  
  JkMount jkstatus
  Order deny,allow
  Deny from all
  Allow from 192.168.1.1
  
  
  　　
  
  
• 重启apache: /etc/init.d/httpd restart
  

　　注：引用本文，请注明来自：http://www.iyunv.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