Centos6.5系统搭建tomcat7.0.57通过msm实现session共享
一般实现session共享，最常用的一种方法就是通过memcached-session-manager。下边我就说一下，怎么通过memcached-session-manager实现session共享。[*]首先建一个放软件的目录，进入此目录。
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# mkdir -p /taokey/tools
# cd /taokey/tools/
2.把下载好的apache-tomcat-7.0.57.tar.gz和jdk-7u71-linux-x64.gz软件包上传到服务器上。
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# ls
apache-tomcat-7.0.57.tar.gzjdk-7u71-linux-x64.gz
# tar -zxf apache-tomcat-7.0.57.tar.gz
# tar -zxf jdk-7u71-linux-x64.gz
# ls
apache-tomcat-7.0.57jdk1.7.0_71
3.创建/data目录，并且把tomcat改名，把tomcat和jdk移到data目录下。
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# mv apache-tomcat-7.0.57 node1
# mkdir /data
# cp -r jdk1.7.0_71 node1 /data
4.配置系统的jdk环境变量。
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# tail -7 /etc/profile
JAVA_HOME=/data/jdk1.7.0_71
JRE_HOME=/data/jdk1.7.0_71/jre
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
CLASSPATH=:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
export JAVA_HOME JRE_HOME PATH CLASSPATH
export PATH=$PATH:JAVA_HOME/bin
export JAVA_HOME
# source /etc/profile
5.修改默认的项目路径。
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# vim node1/conf/server.xml +125
<Host name="localhost"appBase="/data/"#默认的是webapps，我修改成了/data/目录。
6.给tomcat默认启动和关闭脚本添加执行权限。
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# cd node1/bin/
# chmod +x startup.sh
# chmod +x shutdown.sh
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7.启动tomcat，看下是否成功运行。
# ./startup.sh
Using CATALINA_BASE: /data/node1
Using CATALINA_HOME: /data/node1
Using CATALINA_TMPDIR: /data/node1/temp
Using JRE_HOME: /data/jdk1.7.0_71/jre
Using CLASSPATH: /data/node1/bin/bootstrap.jar:/data/node1/bin/tomcat-juli.jar
Tomcat started.
# ps -ef | grep java
root 2036 1 83 12:41 pts/1 00:00:04 /data/jdk1.7.0_71/jre/bin/java -Djava.util.logging.config.file=/data/node1/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/data/node1/endorsed -classpath /data/node1/bin/bootstrap.jar:/data/node1/bin/tomcat-juli.jar -Dcatalina.base=/data/node1 -Dcatalina.home=/data/node1 -Djava.io.tmpdir=/data/node1/temp org.apache.catalina.startup.Bootstrap start
root 205019070 12:42 pts/1 00:00:00 grep java
8.看下tomcat默认监听的端口。
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# netstat -anpt | grep java
tcp 0 0 :::8080 :::* LISTEN 2036/java
tcp 0 0 ::ffff:127.0.0.1:8005 :::* LISTEN 2036/java
tcp 0 0 :::8009 :::* LISTEN 2036/java
9.在项目路径下创建一个测试网页，测试下网页是否可以打开。
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# mkdir /data/ROOT
# touch /data/ROOT/test.html
# echo "hello world" >/data/ROOT/test.html
# cat /data/ROOT/test.html
hello world
# curl -I 192.168.1.15:8080/test.html
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Accept-Ranges: bytes
ETag: W/"12-1421038003000"
Last-Modified: Mon, 12 Jan 2015 04:46:43 GMT
Content-Type: text/html
Content-Length: 12
Date: Mon, 12 Jan 2015 04:48:16 GMT
# wget 192.168.1.15:8080/test.html
# cat test.html
hello world
tomcat7.0.57搭建完毕。
第一个tomcat实例node1已经搭建完毕，tomcat实例node2也按照此步骤搭建即可。tomcat搭建比较简单，这里不再赘述。两个tomcat实例（node1、node2），都搭建好之后,下面结合memcache和msm实现 session共享。
memcahce已经安装好了，详细安装步骤请参加：
10.安装memcahce。
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cd /taokey/tools/
curl -O http://www.monkey.org/~provos/libevent-2.0.13-stable.tar.gz
tar -zxvf libevent-2.0.13-stable.tar.gz
cd libevent-2.0.13-stable
./configure --prefix=/usr
make && make install
curl -O http://www.danga.com/memcached/dist/memcached-1.4.0.tar.gz
tar -zxvf memcached-1.4.0.tar.gz
cd memcached-1.4.0
./configure --with-libevent=/usr/
make
make install
/usr/local/bin/memcached -d -m 200 -u root -c 256 -p 11211 -P /tmp/memcache.pid
测试node1和node2连接memcache是否正常。
# telnet 192.168.1.84 11211
Trying 192.168.1.84...
Connected to 192.168.1.84.
Escape character is '^]'.
# telnet 192.168.1.84 11211
Trying 192.168.1.84...
Connected to 192.168.1.84.
Escape character is '^]'.
经过测试，memcache服务是没有问题。
要想实现session共享，需要上传tomcat7所需要的memcached-session-manager的jar包。
11.这里列出了包括tomcat自带和实现共享session所需要的所有jar包：
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# cd /data/node1/lib/
# ls
annotations-api.jar jasper-el.jar minlog-1.2.jar tomcat-dbcp.jar
catalina-ant.jar jasper.jar msm-kryo-serializer-1.6.5.jartomcat-i18n-es.jar
catalina-ha.jar javolution-5.4.3.1.jar reflectasm-0.9.jar tomcat-i18n-fr.jar
catalina.jar jsp-api.jar servlet-api.jar tomcat-i18n-ja.jar
catalina-tribes.jar kryo-1.03.jar spymemcached-2.10.2.jar tomcat-jdbc.jar
couchbase-client-1.2.2.jarkryo-serializers-0.10.jar tomcat7-websocket.jar tomcat-util.jar
ecj-4.4.jar memcached-session-manager-1.6.5.jar tomcat-api.jar websocket-api.jar
el-api.jar memcached-session-manager-tc7-1.6.5.jartomcat-coyote.jar
# du -sh .
8.2M .
# cd /data/node2/lib/
# ls
annotations-api.jar jasper-el.jar minlog-1.2.jar tomcat-dbcp.jar
catalina-ant.jar jasper.jar msm-kryo-serializer-1.6.5.jartomcat-i18n-es.jar
catalina-ha.jar javolution-5.4.3.1.jar reflectasm-0.9.jar tomcat-i18n-fr.jar
catalina.jar jsp-api.jar servlet-api.jar tomcat-i18n-ja.jar
catalina-tribes.jar kryo-1.03.jar spymemcached-2.10.2.jar tomcat-jdbc.jar
couchbase-client-1.2.2.jarkryo-serializers-0.10.jar tomcat7-websocket.jar tomcat-util.jar
ecj-4.4.jar memcached-session-manager-1.6.5.jar tomcat-api.jar websocket-api.jar
el-api.jar memcached-session-manager-tc7-1.6.5.jartomcat-coyote.jar
# du -sh .
8.2M .
12.修改两个tomcat的配置文件 context.xml。
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修改后的tomcat node1配置文件
# cd /data/node1/conf/
# tail context.xml
<!--
<Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />
-->
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:192.168.1.84:11211"
requestUriIgnorePattern=".*\.(png|gif|jpg|css|js|ico|jpeg|htm|html)$"
sessionBackupTimeout="1800000"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"
/>
</Context>
修改后的tomcat node2配置文件
# cd /data/node2/conf/
# tail context.xml
<!--
<Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />
-->
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:192.168.1.84:11211"
requestUriIgnorePattern=".*\.(png|gif|jpg|css|js|ico|jpeg|htm|html)$"
sessionBackupTimeout="1800000"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"
/>
</Context>
13.修改之后，创建一个index.jsp测试session共享的文档，重启两个tomcat实例。
重启实例node1。
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# cat index.jsp
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Tomcat+memcached共享session测试</title>
</head>
<body>
SessionID:<%=session.getId()%>
<BR>
SessionIP:<%=request.getServerName()%>
<BR>
SessionPort:<%=request.getServerPort()%>
<BR>
<%
out.println("This is Tomcat Server 8081.");
%>
%</body>
%</html>
/data/node1/bin/shutdown.sh
# ps -ef | grep java
root 906319070 17:20 pts/1 00:00:00 grep java
/data/node1/bin/startup.sh
# netstat -anpt | grep 8080
tcp 0 0 :::8080 :::* LISTEN 9072/java
tcp 0 0 ::ffff:127.0.0.1:8080 ::ffff:127.0.0.1:40496 TIME_WAIT -
14.重启实例tomcat node2。
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# cat index.jsp
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Tomcat+memcached共享session测试</title>
</head>
<body>
SessionID:<%=session.getId()%>
<BR>
SessionIP:<%=request.getServerName()%>
<BR>
SessionPort:<%=request.getServerPort()%>
<BR>
<%
out.println("This is Tomcat Server 8081.");
%>
%%</body>
%%</html>
# /data/node2/bin/shutdown.sh
# ps -ef | grep java
root 283020810 17:22 pts/0 00:00:00 grep java
# /data/node2/bin/startup.sh
# netstat -anpt | grep 8080
tcp 0 0 :::8080 :::* LISTEN 2840/java
15.访问nginx代理的服务器IP，192.168.1.15
16.把node1停掉，然后再测试192.168.1.15
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# /data/node1/bin/shutdown.sh
Using CATALINA_BASE: /data/node1
Using CATALINA_HOME: /data/node1
Using CATALINA_TMPDIR: /data/node1/temp
Using JRE_HOME: /data/jdk1.7.0_71/jre
Using CLASSPATH: /data/node1/bin/bootstrap.jar:/data/node1/bin/tomcat-juli.jar
# ps -ef | grep java
root 913219070 17:29 pts/1 00:00:00 grep java
17.session信息还是原来的，好现在咱们开启node1,关闭node2,在测试一下，session信息、
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# /data/node1/bin/startup.sh
Using CATALINA_BASE: /data/node1
Using CATALINA_HOME: /data/node1
Using CATALINA_TMPDIR: /data/node1/temp
Using JRE_HOME: /data/jdk1.7.0_71/jre
Using CLASSPATH: /data/node1/bin/bootstrap.jar:/data/node1/bin/tomcat-juli.jar
Tomcat started.
# netstat -anpt | grep java
tcp 0 0 :::8080 :::* LISTEN 9144/java
tcp 0 0 ::ffff:127.0.0.1:8005 :::* LISTEN 9144/java
tcp 0 0 :::8009 :::* LISTEN 9144/java
tcp 0 0 ::ffff:192.168.1.15:58421 ::ffff:192.168.1.84:11211 ESTABLISHED 9144/java
tcp 0 0 ::ffff:192.168.1.15:58418 ::ffff:192.168.1.84:11211 ESTABLISHED 9144/java
tcp 0 0 ::ffff:192.168.1.15:58419 ::ffff:192.168.1.84:11211 ESTABLISHED 9144/java
tcp 0 0 ::ffff:192.168.1.15:58420 ::ffff:192.168.1.84:11211 ESTABLISHED 9144/java
# /data/node2/bin/shutdown.sh
Using CATALINA_BASE: /data/node2
Using CATALINA_HOME: /data/node2
Using CATALINA_TMPDIR: /data/node2/temp
Using JRE_HOME: /data/jdk1.7.0_71/jre
Using CLASSPATH: /data/node2/bin/bootstrap.jar:/data/node2/bin/tomcat-juli.jar
# ps -ef | grep java
root 289620810 17:31 pts/0 00:00:00 grep java
session共享成功实现。
tomcat7实现session共享所需jar包下载地址：
百度云附件：tomcat7实现session共享所需jar包.zip
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