[web architect] nginx1.2.6+ tomcat7+memcached1.2.6

Load Balancer (Nginx)

          /           \

      Cluster1      Cluster2

      /     \        /     \

  Tomcat1 Tomcat2  Tomcat3 Tomcat4

memcached

下载：

Ubuntu:

sudo apt-get install memcached

Windows:

http://www.kuaipan.cn/file/id_18237169873244609.htm

 

启动服务器：

memcached -p 11211 -u memcached -m 64 -M -vv

 

 

客户端访问：

telnet localhost 11211

 

Command	Description	Example
get	Reads a value	get mykey
set	Set a key unconditionally	set mykey 0 60 5
add	Add a new key	add newkey 0 60 5
replace	Overwrite existing key	replace key 0 60 5
append	Append data to existing key	append key 0 60 15
prepend	Prepend data to existing key	prepend key 0 60 15
incr	Increments numerical key value by given number	incr mykey 2
decr	Decrements numerical key value by given number	decr mykey 5
delete	Deletes an existing key	delete mykey
flush_all	Invalidate specific items immediately	flush_all
Invalidate all items in n seconds	flush_all 900
stats	Prints general statistics	stats
Prints memory statistics	stats slabs
Prints memory statistics	stats malloc
Print higher level allocation statistics	stats items
	stats detail
	stats sizes
Resets statistics	stats reset
version	Prints server version.	version
verbosity	Increases log level	verbosity
quit	Terminate telnet session	quit

 

http://code.google.com/p/memcached-session-manager/

 

https://github.com/magro/msm-sample-webapp

 

Nginx

 

http {
    server {
        location / {
            root   html;
            index  index.html index.htm;
	    proxy_pass  http://127.0.0.1;
        } 
	upstream 127.0.0.1 {
		server 127.0.0.1:8080 weight=1; 
		server 127.0.0.1:8081 weight=2; 
	} 
}

 

tomcat

server.xml

 

 

D:\tomcat-7.0.34_1

port:8005

D:\tomcat-7.0.34_2

port:8006

 

<Server port="8005" shutdown="SHUTDOWN">

 

 

 

D:\tomcat-7.0.34_1

port:8080

D:\tomcat-7.0.34_2

port:8081

 

 <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />

 

 

D:\tomcat-7.0.34_1

port:8009

D:\tomcat-7.0.34_2

port:9009

 

<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />

 

D:\tomcat-7.0.34_1

jvmRoute:tomcat7-1

D:\tomcat-7.0.34_2

jvmRoute:tomcat7-2 

 

<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat7-1">

 

D:\tomcat-7.0.34_1

port:4000

D:\tomcat-7.0.34_2

port:4001

 

 <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>

 

 

D:\tomcat-7.0.34_1

docBase:D:/tomcat-7.0.34_1/webapps/test

D:\tomcat-7.0.34_2

docBase:D:/tomcat-7.0.34_2/webapps/test

 

<Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true">
<Context docBase="D:/tomcat-7.0.34_1/webapps/test" path="" reloadable="true">
	<Manager className="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"/>
</Context>
</Host>

 

D:\tomcat-7.0.34_1\webapps\test\index.jsp

 

<%@ page contentType="text/html; charset=GBK" %> 
<%@ page import="java.util.*" %> 
<html>
   <head>
      <title>Cluster Test</title>
   </head>
   <body> 
    <% 
    System.out.println(session.getId()); 
    out.println("<br> SESSION ID:" + session.getId()+"<br>");   
    %> 
   </body>
</html>

 

D:\tomcat-7.0.34_1\webapps\test\WEB-INF\web.xml

 

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>test</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <distributable/>
</web-app>