Apache实现Tomcat集群
一,配置介绍1,linux
2,tomcat6.0 (tomcat1,tomcat2)
3,httpd( apache 版本(2.2.15))(需要命令安装)
4, mod_jk-1.2.30-httpd-2.2.3.so (版本与上面的httpd要保持一致(2.2.x))
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二,各个配置说明
httpd
1,将下载好的jk-1.2.30-httpd-2.2.3.so放入Apache_Home/modules下面
2在Apache_home/conf目录下创建mod_jk.conf文件,里面内容为
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#加载mod_jk Module
LoadModule jk_module modules/mod_jk-1.2.30-httpd-2.2.3.so
#加载集群中的workers
JkWorkersFile conf/workers.properties
#加载workers的请求处理分配文件
JkMountFile conf/uriworkermap.properties
#指定jk的日志输出文件
JkLogFile logs/mod_jk.log
#指定日志级别
JkLogLevel warn
#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 /* controller
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3,创建Apache_Home/conf/workers.properties
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#server 列表
worker.list=controller,tomcat1,tomcat2
#========tomcat1========
#ajp13 端口号，在tomcat下server.xml配置,默认8009(更改server.xml下找到ajp/1.3进行更改)
worker.tomcat1.port=8009
#tomcat的主机地址，如不为本机，请填写ip地址
worker.tomcat1.host=localhost
worker.tomcat1.type=ajp13
#server的加权比重，值越高，分得的请求越多
worker.tomcat1.lbfactor=1
#========tomcat2========
#ajp13 端口号，在tomcat下server.xml配置,默认8009
worker.tomcat2.port=9009
#tomcat的主机地址，如不为本机，请填写ip地址
worker.tomcat2.host=localhost
worker.tomcat2.type=ajp13
#server的加权比重，值越高，分得的请求越多
worker.tomcat2.lbfactor=1
#========controller,负载均衡控制器========
#server名为controller,用于负载均衡
worker.controller.type=lb
#重试次数
worker.retries=3
#指定分担请求的tomcat
worker.controller.balanced_workers=tomcat1,tomcat2
#粘性Session(默认是打开的) 当该属性值=True（或1）时，代表Session是粘性的，即同一Session在集群中的同一个节点上处理，Session不跨越节点。在集群环境中，一般将该值设置为False
worker.controller.sticky_session=false
#设置用于负载均衡的server的session可否共享 有不少文章说设置为1是可以的，也有设置为0才可以的
worker.controller.sticky_session=1
#worker.controller.sticky_session_force=1
#worker.status.type=status
==================================
4,创建Apache_Home/conf/uriworkermap.properties
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在Apache_Home\conf下建立uriworkermap.properties文件
配置内容：
#所有请求都由controller这个server处理
/*=controller
#所有包含jkstatus请求的都由status这个 server处理
#/jkstatus=status
#这里的"!”是“非”的意思。
!/*.gif=controller
!/*.jpg=controller
!/*.png=controller
!/*.css=controller
!/*.js=controller
!/*.htm=controller
!/*.html=controller
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5,最后,在Apache_Home/conf/httpd.conf最后一行加include "/conf/mod_jk.conf"
二,两个tomcat的配置:由于是两个tomcat故http的端口号要设置不同,根据自己的设置需要
tomcat1:
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需要修改的内容
根据以上配置ajp13的端口号为8009
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
需要添加的内容：
<!--tomcat1将与tomcat2黏贴session 在这里指定黏贴对象-->
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2">
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="8">
<Manager className="org.apache.catalina.ha.session.DeltaManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"/>
<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"
prot="4000"
autoBind="100"
selectorTimeout="5000"
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"/>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
<!-- <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.JvmRouteSessionIDBinderListener"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
</Cluster>
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tomcat2:
=======================================
需要修改的内容
根据以上配置ajp13的端口号为8009
<Connector port="9009" protocol="AJP/1.3" redirectPort="8443" />
需要添加的内容:
<!--tomcat2将与tomcat1黏贴session 在这里指定黏贴对象-->
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="8">
<Manager className="org.apache.catalina.ha.session.DeltaManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"/>
<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="4001" <!--与以上一个对比-->
autoBind="100"
selectorTimeout="5000"
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"/>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
<!-- <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.JvmRouteSessionIDBinderListener"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
</Cluster>
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参照：http://www.iteye.com/topic/675914
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