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tomcat篇之结合apache+tomcat+memcached做session共享

时间:2016-07-22 23:12:36      阅读:285      评论:0      收藏:0      [点我收藏+]

标签:session共享

tomcat1:192.168.1.155

tomcat2:192.168.1.11

apache:192.168.1.155

前端代理apache设置,参考前面的tomcat文章(基于mod_proxy和mod_jk模块)

这里不再赘述,直接贴配置文件:

cd /etc/httpd/conf.d

[root@RS1 conf.d]# cat mod_jk.conf 

LoadModule  jk_module  modules/mod_jk.so

JkWorkersFile/etc/httpd/conf.d/workers.properties

JkLogFilelogs/mod_jk.log

JkLogLeveldebug

JkMount/*  lbcluster

JkMount /status/  stat1

[root@RS1 conf.d]# cat workers.properties 

worker.list=lbcluster,stat1

worker.tomcat1.port=8009

worker.tomcat1.host=192.168.1.155

worker.tomcat1.type=ajp13

worker.tomcat1.lbfactor=1

worker.tomcat2.port=8009

worker.tomcat2.host=192.168.1.11

worker.tomcat2.type=ajp13

worker.tomcat2.lbfactor=1

worker.lbcluster.balance_workers=tomcat1,tomcat2

worker.lbcluster.type=lb

worker.lbcluster.sticky_session=0

worker.stat1.type = status


for tomcat configure

参考:https://github.com/magro/memcached-session-manager/wiki/SetupAndConfiguration

Add memcached-session-manager jars to tomcat

wget http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager/1.9.4/memcached-session-manager-1.9.4.jar

wget http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager-tc7/1.9.4/memcached-session-manager-tc7-1.9.4.jar

wget http://repo1.maven.org/maven2/net/spy/spymemcached/2.11.1/spymemcached-2.11.1.jar

下载需要的memcached的三个jar文件

将这三个jar文件复制到$CATALINA_HOME/lib/目录下

如果仅仅只是用java来做序列化器只需要这三个包就ok

修改$CATALINA_HOME/conf/context.conf目录添加:

<Context>

  <Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"

    memcachedNodes="n1:host1.yourdomain.com:11211,n2:host2.yourdomain.com:11211"

    failoverNodes="n1"

    requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"

    />

</Context>

见tomcat1配置截图如下:context.xml

技术分享

这是tomcat1:192.168.1.155的配置

见tomcat2配置截图如下:context.xml

技术分享技术分享


tomcat的主配置文件server.xml只需注意一点:

tomcat1:192.168.1.155

<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">:jvmRoute不能少

tomcat2:192.168.1.11

<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2" >


接下来安装memcached就行,这里采用rpm包安装,方便快捷

yum -y install memcached


然后分别启动各节点上的tomcat和memcached服务

for 192.168.1.155-tomcat1

/usr/local/tomcat7/bin/catalina.sh start

service memcached start


for 192.168.1.11-tomcat1

/usr/local/tomcat7/bin/catalina.sh start

service memcached start


检查服务端口是否起来了,然后浏览器先各自观察一下

tomcat1:192.168.1.155:8080

技术分享

tomcat2:192.168.1.11:8080

技术分享

可以明显的检测tomcat服务没有问题,然后进行session共享测试

访问浏览器http://192.168.1.155:80

技术分享

然后刷新

技术分享

可以明显的从截图上面观察到session id并没有改变,而tomcat的编号变了,至此session共享基于tomcat集群已然完成

附带两个tomcat的index.jsp程序代码

<%@ page language="java" %>

<html>

  <head><title>tomcat1</title></head>

  <body>

    <h1><font color="red">tomcat1</font></h1>

    <table align="centre" border="1">

      <tr>

        <td>Session ID</td>

    <% session.setAttribute("abc","abc"); %>

        <td><%= session.getId() %></td>

      </tr>

      <tr>

        <td>Created on</td>

        <td><%= session.getCreationTime() %></td>

     </tr>

    </table>

  </body>

</html>

####################tomcat2###############

<%@ page language="java" %>

<html>

  <head><title>tomcat2</title></head>

  <body>

    <h1><font color="red">tomcat2 </font></h1>

    <table align="centre" border="1">

      <tr>

        <td>Session ID</td>

    <% session.setAttribute("abc","abc"); %>

        <td><%= session.getId() %></td>

      </tr>

      <tr>

        <td>Created on</td>

        <td><%= session.getCreationTime() %></td>

     </tr>

    </table>

  </body>

</html>

#############################################

根据有很多网友选择了其他的序列化器,在这里注明一点

如果你自定义了序列化器就得加上你自定义的包

其他的序列号器:

javolution-serializer: msm-javolution-serializer, javolution-5.4.3.1

xstream-serializer: msm-xstream-serializer, xstream, xmlpull, xpp3_min

flexjson-serializer: msm-flexjson-serializer, flexjson


比如你自定义加了javolution-serializer这个序列化器,它所依赖了下面一些包

javolution-serializer: msm-javolution-serializer, javolution-5.4.3.1(后面就是依赖的jar包)

然后再在context.xml加入那几段代码中添加下面一行

transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.javolutionTranscoderFactory"

于是配置文件context.xml如下:

<Context>

  <Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"

    memcachedNodes="n1:192.168.1.155:11211,n2:192.168.1.11:11211"

    failoverNodes="n1"

    requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"

    transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.javolutionTranscoderFactory"

    />

</Context>

然后重启tomcat即可,如果你添加的是其他的序列化器只需要将刚刚添加的最后一行中的序列号器改一下就行,具体如

transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.javolutionTranscoderFactory"将代码中的javolution序列化器改为其他的序列化器名称就行



tomcat篇之结合apache+tomcat+memcached做session共享

标签:session共享

原文地址:http://huangsir007.blog.51cto.com/6159353/1828967

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