Apache2.2+Tomcat6配置集群、负载均衡、session复制随笔
一直以来都在javaeye潜水,得到了很多人的经验分享,这两天在学习tomcat配置集群的过程中,积累了一点东西觉得应该与大家分享。关于Tomcat和Apache的连接方式,请参阅 http://www.ibm.com/developerworks/cn/opensource/os-lo-apache-tomcat/index.html。详细的配置过程,不再重复描述,请先看看罗代均http://hi.baidu.com/luodaijun/blog/item/5bbe4cfb5ffef864034f56a1.html,我把配置过程中几个不同和关键的地方重点提出来。
软件版本有所不同,罗列如下:
Apache :apache_2.2.11-win32-x86-openssl-0.9.8i.msi 1个
Tomcat: apache-tomcat-6.0.14.zip 2个
mod_jk: mod_jk-1.2.27-httpd-2.2.10.so 1个
我准备了两台机器,192.1168.1.5 192.168.1.3,你也可以在一台机器上进行测试。
把apache和tomcat安装好以后,配置过程中有如下一些地方改动或者改进。
2.修改Apache配置文件http.conf
引入mod_jk时候,可以使用
Include conf/mod_jk.conf 可以不使用全路径引入,方便管理。
3.在http.conf同目录下新建 workers.properties文件,内容如下
#========tomcat1========worker.tomcat1.port=8009 #ajp13 端口号,在tomcat下server.xml配 置,默认8009worker.tomcat1.host=localhost #tomcat的主机地址,如不为本机,请填写ip地址worker.tomcat1.type=ajp13worker.tomcat1.lbfactor = 1 #server的加权比重,值越高,分得的请求越多#========tomcat2========worker.tomcat2.port=9009 #ajp13 端口号,在tomcat下server.xml配置,worker.tomcat2.host=192.168.1.3 #tomcat的主机地址,如不为本机,请填写ip地址worker.tomcat2.type=ajp13worker.tomcat2.lbfactor = 1 #server的加权比重,值越高,分得的请求越多#========controller,负载均衡控制器========worker.controller.type=lbworker.controller.balanced_workers=tomcat1,tomcat2 #指定分担请求的tomcatworker.controller.sticky_session=false #worker.controller.sticky_session=1
把server.xml中注释部分<!-- <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>-->替换如下cluster配置内容:<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8"> <!-- <Manager className="org.apache.catalina.ha.session.BackupManager"expireSessionsOnShutdown="false"notifyListenersOnReplication="true"mapSendOptions="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="4000" autoBind="100" selectorTimeout="5000" maxThreads="6"/> <!-- timeout="60000"--> <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=""/> <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>
2009-1-28 14:47:12 org.apache.catalina.ha.session.DeltaManager start??: [color=red]Starting clustering manager at2009-1-28 14:47:12 org.apache.catalina.ha.session.DeltaManager getAllClusterSessions??: Manager [localhost#], requesting session state from org.apache.catalina.tribes.membership.MemberImpl[tcp://3645A51F0B7E4CA:4001,3645A51F0B7E4CA,4001, alive=29031,id={112 55 65 24 117 66 68 118 -122 -5 -53 2 -35 -90 -8 -95 }, payload={}, command={}, domain={}, ]. This operation will timeout if no session state has been received within 60 seconds.[/color]2009-1-28 14:47:12 org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor report??: ThroughputInterceptor Report[ Tx Msg:1 messages Sent:0.00 MB (total) Sent:0.00 MB (application) Time:0.02 seconds Tx Speed:0.03 MB/sec (total) TxSpeed:0.03 MB/sec (application) Error Msg:0 Rx Msg:1 messages Rx Speed:0.00 MB/sec (since 1st msg) Received:0.00 MB]2009-1-28 14:47:12 org.apache.catalina.ha.session.DeltaManager waitForSendAllSessions??: Manager [localhost#]; session state send at 09-1-28 ??2:47 received in 265 ms.2009-1-28 14:47:12 org.apache.catalina.ha.session.JvmRouteBinderValve start??: JvmRouteBinderValve started2009-1-28 14:47:12 org.apache.coyote.http11.Http11Protocol start??: Starting Coyote HTTP/1.1 on http-80002009-1-28 14:47:12 org.apache.jk.common.ChannelSocket init??: JK: ajp13 listening on /0.0.0.0:80092009-1-28 14:47:12 org.apache.jk.server.JkMain start??: Jk running ID=0 time=0/31 config=null2009-1-28 14:47:12 org.apache.catalina.startup.Catalina start??: Server startup in 2818 ms
2009-1-28 14:47:12 org.apache.catalina.ha.session.JvmRouteBinderValve start??: JvmRouteBinderValve started2009-1-28 14:47:12 org.apache.coyote.http11.Http11Protocol start??: Starting Coyote HTTP/1.1 on http-80002009-1-28 14:47:12 org.apache.jk.common.ChannelSocket init??: JK: ajp13 listening on /0.0.0.0:80092009-1-28 14:47:12 org.apache.jk.server.JkMain start??: Jk running ID=0 time=0/31 config=null2009-1-28 14:47:12 org.apache.catalina.startup.Catalina start??: Server startup in 2818 ms55 = 55gg = gg44 = 4455 = 55gg = gg11 = 1177 = 771 楼 spiritfrog 2009-02-01 有一点不明: