基于apache的tomcat负载均衡和集群配置_mod jk
[b][/b] 关键字: tomcat集群, 负载均衡, session同步
<http://liuyu.blog.51cto.com/183345/113544>
(基于apache的tomcat负载均衡和集群配置 (采用的session策略是 Session Sticky
)
1】 下载安装
httpd-2.2.15-win32-x86-no_ssl.msi 网页服务器
32-bit Windows zip tomcat
mod_jk-1.2.30-httpd-2.2.3.so Apache/IIS 用来连接后台Tomcat的模块,支持集群和负载均衡
下载地址 http://www.apache.org/dist/tomcat/tomcat-connectors/jk/binaries/win32/jk-1.2.31/
JK 分为两个版本 1,x 和 2.x ,其中 2.x 并不是最新的版本,它是 JK 的另外一个分支,后不知何因没有继续开发,因此2.x 版本已经废弃
安装httpd-2.2.15-win32-x86-no_ssl.msi 到指定目录,我安装的是C:\Program Files\Apache2.2,以后这个目录将用Apache_Home代替
安装tomcat,我是将两个tomcat进行集群,所以安装两个tomcat,路径分别为:F:\tomcat\tomcat1,F:\tomcat\tomcat2,以后这两个目录将用tomcat1_Home,tomcat2_Home代替
2】 配置Apache_Home\conf\httpd.conf
在httpd.conf文件的最后一行写入include "C:\Program Files\Apache2.2\conf\mod_jk.conf"
3】 配置mod_jk.conf文件
在Apache_Home\conf下建立mod_jk.conf文件
配置内容:
#加载mod_jk Module
LoadModule jk_module modules/mod_jk-1.2.30-httpd-2.2.3.so
将下载的 mod_jk-1.2.30-httpd-2.2.3.so 文件放入到Apache_Home\modules下
# 配置 mod_jk
#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
4】 配置workers.propertise文件
在Apache_Home\conf下建立workers.propertise文件
配置内容:
#server 列表 worker.list=controller,tomcat1,tomcat2 #========tomcat1======== #ajp13 端口号,在tomcat下server.xml配置,默认8009 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
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
<Connector port="8081" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2"> <!--tomcat1将与tomcat2黏贴session 在这里指定黏贴对象--> <!--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="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>
<Connector port="8082" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />JK: ajp13 listening on /0.0.0.0:9009 修改端口必须与workers.propertise文件内worker.tomcat2.port=9009一致
<!--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" 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>