虽然曾经做过，却经常性忘记，特将其记录，以备后续查看。
相关资料：
Linux下Tomcat运行环境搭建详见另一片博文：http://blog.gaodaima.com/xiadi934/article/details/50911175
Tomcat7.0官方集群文档，具体细节参数请到该处查阅：http://tomcat.apache.org/tomcat-7.0-doc/cluster-howto.html
Linux下搭建Nginx + Tomcat还有问题的请绕过。
思路
- 使用两台机器，本机（window，IP：192.168.1.108） + 虚拟机（Linux，IP：192.168.25.132）
- Linux上部署 nginx + tomcat7 + web，Window上部署 ： tomcat7 + web
- 参考Tomcat官方集群例子, 采用Tomcat本身自带集群与Session共享
实现
- Window上Tomcat下server.xml文件配置，其余配置均不变，只修改以下配置
<code><span><<span>Engine</span><span>name</span>=<span>"Catalina"</span><span>defaultHost</span>=<span>"localhost"</span><span>jvmRoute</span>=<span>"tomcat127"</span>></span><span><<span>Cluster</span><span>className</span>=<span>"org.apache.catalina.ha.tcp.SimpleTcpCluster"</span><span>channelSendOptions</span>=<span>"8"</span>></span><span><<span>Manager</span><span>className</span>=<span>"org.apache.catalina.ha.session.DeltaManager"</span><span>expireSessionsOnShutdown</span>=<span>"false"</span><span>notifyListenersOnReplication</span>=<span>"true"</span> /></span><span><<span>Channel</span><span>className</span>=<span>"org.apache.catalina.tribes.group.GroupChannel"</span>></span><span><<span>Membership</span><span>className</span>=<span>"org.apache.catalina.tribes.membership.McastService"</span><span>address</span>=<span>"228.0.0.4"</span><span>port</span>=<span>"45564"</span><span>frequency</span>=<span>"500"</span><span>dropTime</span>=<span>"3000"</span> /></span><span><!---ecms -ecms 广播地址与端口采用默认--></span><span><<span>Receiver</span><span>className</span>=<span>"org.apache.catalina.tribes.transport.nio.NioReceiver"</span><span>address</span>=<span>"192.168.1.108"</span><span>port</span>=<span>"4000"</span><span>autoBind</span>=<span>"100"</span><span>selectorTimeout</span>=<span>"5000"</span><span>maxThreads</span>=<span>"6"</span> /></span><span><!---ecms -ecms 本机局域网IP，端口默认--></span><span><<span>Sender</span><span>className</span>=<span>"org.apache.catalina.tribes.transport.ReplicationTransmitter"</span>></span><span><<span>Transport</span><span>className</span>=<span>"org.apache.catalina.tribes.transport.nio.PooledParallelSender"</span> /></span><span></<span>Sender</span>></span><span><<span>Interceptor</span><span>className</span>=<span>"org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"</span> /></span><span><<span>Interceptor</span><span>className</span>=<span>"org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"</span> /></span><span></<span>Channel</span>></span><span><<span>Valve</span><span>className</span>=<span>"org.apache.catalina.ha.tcp.ReplicationValve"</span><span>filter</span>=<span>""</span> /></span><span><<span>Valve</span><span>className</span>=<span>"org.apache.catalina.ha.session.JvmRouteBinderValve"</span> /></span><span><<span>Deployer</span><span>className</span>=<span>"org.apache.catalina.ha.deploy.FarmWarDeployer"</span><span>tempDir</span>=<span>"/tmp/war-temp/"</span><span>deployDir</span>=<span>"/tmp/war-deploy/"</span><span>watchDir</span>=<span>"/tmp/war-listen/"</span><span>watc<strong>（本文来源gaodai#ma#com搞@@代~&码网</strong><pre>搞代gaodaima码
hEnabled=“false” /><ClusterListenerclassName=“org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener”/><ClusterListenerclassName=“org.apache.catalina.ha.session.ClusterSessionListener”/></Cluster> … </Engine>
- Linux上Tomcat下server.xml文件配置，其余配置均不变，加上同上配置
<code><Engine name=<span>"Catalina"</span> defaultHost=<span>"localhost"</span> jvmRoute=<span>"tomcat132"</span>> <Cluster className=<span>"org.apache.catalina.ha.tcp.SimpleTcpCluster"</span> channelSendOpti>"8"</span>> <Manager className=<span>"org.apache.catalina.ha.session.DeltaManager"</span> expireSessi>"false"</span> notifyListeners>"true"</span> /> <Channel className=<span>"org.apache.catalina.tribes.group.GroupChannel"</span>> <Membership className=<span>"org.apache.catalina.tribes.membership.McastService"</span> address=<span>"228.0.0.4"</span> port=<span>"45564"</span> frequency=<span>"500"</span> dropTime=<span>"3000"</span> /> <Receiver className=<span>"org.apache.catalina.tribes.transport.nio.NioReceiver"</span> address=<span>"192.168.25.132"</span> port=<span>"4000"</span> autoBind=<span>"100"</span> selectorTimeout=<span>"5000"</span> maxThreads=<span>"6"</span> /><!---ecms -ecms 虚拟机的局域网IP --> <span>...</span> <span>...</span> </code>
- 修改Nginx配置，加入负载均衡
<code>upstream backendServer{ ip_hash; <span>#可选，根据来源IP方式选择web服务器，省略的话按默认的轮循方式选择web服务器</span><span>server</span><span>127.0</span><span>.0</span><span>.1</span>:<span>8080</span>; <span>#虚拟机本机Tomcat</span><span>server</span><span>192.168</span><span>.1</span><span>.108</span>:<span>8080</span>; <span>#Window上Tomcat</span>}<span>server</span> { <span>#设置监听端口</span> listen <span>80</span>; charset utf-<span>8</span>; <span>#设置服务器域名(IP访问和多域名访问可不设置)</span><span>#server_name _*;</span><span>#server_name www.test.com;</span><span>#开启shtml支持</span> ssi on; ssi_silent_errors on; ssi_types text/shtml; <span>#设置主访问日志</span><span>#access_log logs/access.log main;</span> access_log /dev/<span>null</span>; error_page <span>404</span> /<span>404.</span>html; error_page <span>500</span><span>502</span><span>503</span><span>504</span> /<span>50</span>x.html; location / { proxy_pass http:<span>//backendServer;</span> include proxy.conf; }}</code>
- 修改两个Tomcat下conf/web.xml，尾部加入以下代码
<code><span><<span>distributable</span>/></span><span><!---ecms -ecms 允许Session分配 --></span></code>
- 加入测试页面，在两个Tomcat/webapps下创建文件夹test，并创建index.jsp，代码如下
<code><span><%@ page language=<span>"java"</span> import=<span>"java.util.*"</span> pageEncoding=<span>"utf-8"</span>%></span><span><%<span>String</span> path = <span>request</span>.getContextPath();<span>String</span> basePath = <span>request</span>.getScheme()+<span>"://"</span>+<span>request</span>.getServerName()+<span>":"</span>+<span>request</span>.getServerPort()+path+<span>"/"</span>;%></span><span></span><span><<span>html</span>></span><span><<span>head</span>></span><span><<span>base</span><span>href</span>=<span>"<%=basePath%>"</span>></span><span><<span>title</span>></span>首页<span></<span>title</span>></span><span><<span>meta</span><span>http-equiv</span>=<span>"pragma"</span><span>content</span>=<span>"no-cache"</span>></span><span><<span>meta</span><span>http-equiv</span>=<span>"cache-control"</span><span>content</span>=<span>"no-cache"</span>></span><span><<span>meta</span><span>http-equiv</span>=<span>"expires"</span><span>content</span>=<span>"0"</span>></span><span><<span>meta</span><span>http-equiv</span>=<span>"keywords"</span><span>content</span>=<span>"keyword1,keyword2,keyword3"</span>></span><span><<span>meta</span><span>http-equiv</span>=<span>"description"</span><span>content</span>=<span>"This is my page"</span>></span><span><!---ecms -ecms <link rel="stylesheet" type="text/css" href="styles.css"> --></span><span></<span>head</span>></span><span><<span>body</span>></span><span><<span>p</span>></span>sessionID：<span><%=session.getId() %></span><span></<span>p</span>></span><span><<span>p</span>></span>session创建时间：<span><%=session.getCreationTime() %></span><span></<span>p</span>></span><span><<span>p</span>></span>服务器IP：<span><%=<span>request</span>.getRemoteHost() %></span><span></<span>p</span>></span><span></<span>body</span>></span><span></<span>html</span>></span></code>
测试
启动两个Tomcat，测试结果如下，则说明配置负载+集群+Session共享成功。
Nginx默认是就近IP访问本机Linux下tomcat，效果图如下
关闭Linux下的tomcat，刷新后，则是访问Window下tomcat
请注意查看Session的创建时间，是一致的说明成功了。
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‘).text(i)); }; $numbering.fadeIn(1700); }); }); </script>以上就介绍了Tomcat集群与Session共享 + Nginx负载，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。
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转载请注明原文链接：Tomcat集群与Session共享 + Nginx负载
转载请注明原文链接：Tomcat集群与Session共享 + Nginx负载
