LNMP之memcached实现tomcat群集（三）
1、安装依赖包yum install libevent libevent-devel2、安装memcached
tar zxf memcached-1.4.24.tar.gzcd memcached-1.4.24./configuremake make install查看安装是否成功：ls-al /usr/local/bin/mem*3、启动及关闭memcached
/usr/local/bin/memcached -d -m 10 -u root -l localhost -p 11211-c 256 -P /tmp/memcached.pid
测试启动是否成功：
telnet localhost 11211
关闭memcached:kill `cat /tmp/memcached.pid`
4、Memcached的Tomcat配置（session同步）
首先，将之前下载的JAR包全部拷贝到Tomcat的lib下接着，配置两个Tomcat的context.xml的文件：在Context标签内加入如下内容：<ManagerclassName="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:localhost:11211"
requestUriIgnorePattern=".*/.(png|gif|jpg|css|js)$"
sessionBackupAsync="false"
sessionBackupTimeout="100"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"
copyCollectionsForSerialization="false"/>
5、修改tomcat默认目录及主页：
在server.xml的标签</Host>上面添加 <Contextpath="" docBase="../webapps/test1" debug="0"reloadable="true" />
index.jsp内容：
<%@ page language="java"contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<html>
<body>
SessionID:<%=session.getId()%>
<BR>
SessionIP:<%=request.getServerName()%>
<BR>
SessionPort:<%=request.getServerPort()%>
<%
out.println("Itis test1");
%>
<%=(String)session.getAttribute("user")%>
</body>
</html>
6、Memcached自启动：
vi /etc/rc.d/rc.local在最后添加：/usr/local/bin/memcached -d -m 10 -u root -l localhost -p11211 -c 256 -P /tmp/memcached.pid百度云附件：群集需要用到的包.rar
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