这几天做Apache和Tomcat集群,我测试成功了,下面给个共享:
环境说明:
系统:windows xp
服务器:apache_2.2、mod_jk_2.2(插件和apache版本一致)
集群服务器:apache-tomcat6(分配在三台pc上)
A、安装apache_2.2、apache-tomcat6
跳过:(注意:apache_2.2默认端口是80,如有其它程序占用可在httpd.conf修改 Listen 80)
B、负载均衡配置
将mod_jk-apache-2.0.59.so copy到Apache的modules目录中。
在apache的安装目录中找到conf/httpd.conf文件,打开此文件在其末尾添加:
include "C:Program FilesApache Software FoundationApache2.2confmod_jk.conf"
在conf目录下创建你上面引用的文件 (mod_jk.conf)
内容:
#加载mod_jk Module
LoadModule jk_module modules/mod_jk-apache-2.0.59.so
#指定 workers.properties文件路径
JkWorkersFile workers.properties
#指定哪些请求交给tomcat处理,"controller"为在workers.propertise里指定的负载分配控制器名
JkMount /*.jsp controller
如果所有请求都需要负载均衡处理就是 /*
在conf目录下新建workers.properties文件并添加如下内容:
worker.list = controller,tomcat1,tomcat2
#========tomcat1========
worker.tomcat1.port=9878
worker.tomcat1.host=192.168.3.199
worker.tomcat1.type=ajp13
worker.tomcat1.lbfactor = 1 #加权因子 越大执行的请求越多
#========tomcat2========
worker.tomcat2.port=9879
worker.tomcat2.host=127.0.0.1
worker.tomcat2.type=ajp13
worker.tomcat2.lbfactor = 1
#========controller,负载均衡控制器========
worker.controller.type=lb
worker.controller.balanced_workers=tomcat1,tomcat2
worker.controller.sticky_session=1
分别配置各个tomcat
(注意服务器集群分为水平集群[多个服务器在同一台pc上]和垂直集群[不同pc上],如果是后者就不需要做如下配置,只要上面的ajp13端口和server.xml中对应就行)
将AJP13 Connector port改为9878与上面worker.tomcat2.port对应
<Connector port="9878" enableLookups="false" redirectPort="8443" protocol="AJP/1.3" />
修各个tomcat 在下面配置中加 jvmRoute="tomcat1"和tomcat2找规律吧(不分水平集群和垂直集群都要配置)!
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">
-------------------------------这里负载均衡完成了!!!----------------------------------------------C、集群配置
在server.xml中找到 <Host>节点在里面添加如下配置:
(注意有些文章说是放开<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>我试过不行,所以不可行,有时间可以试试)
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="6">
<Manager className="org.apache.catalina.ha.session.BackupManager"
expireSessionsOnShutdown="false" notifyListenersOnReplication="true"
mapSendOptions="6" />
<Channel className="org.apache.catalina.tribes.group.GroupChannel">
<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="5000" selectorTimeout="100" maxThreads="6" />
<Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
<Transport
className="org.apache.catalina.tribes.transport.nio.PooledParallelSender" />
</Sender>
<Interceptor
className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector" />
<Interceptor
className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor" />
<Interceptor
className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor" />
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=".*.gif;.*.js;.*.jpg;.*.png;.*.htm;.*.html;.*.css;.*.txt;" />
<Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
tempDir="/tmp/war-temp/" deployDir="/tmp/war-deploy/" watchDir="/tmp/war-listen/"
watchEnabled="false" />
<ClusterListener
className="org.apache.catalina.ha.session.ClusterSessionListener" />
</Cluster>
到此Apache+tomcat集群配置完成!写个增删改查测试下吧!会得到预期效果的。