TOMCAT7 + memcached
All systems use centos7.1
Each node is configured with the Hosts file.
Cat/etc/hosts
172.16.92.1 node1.centos7.com Node1
172.16.92.2 node2.centos7.com Node2
172.16.92.3 node3.centos7.com Node3
172.16.92.6 node6.centos7.com Node6
172.16.92.7 node7.centos7.com Node7
Node1---Nginx reverse proxy to two tomcat nodes
Node2, Node3-to-Tomcat stores session information in two memcached
Node6, Node7---memcached ()
================ Node6 172.16.92.6/16 ===================
mount/dev/cdrom/mnt/cdrom/
Yum-y Install memcached
Systemctl start memcached
NETSTAT-TAUNL | grep 11211
================ Node7 172.16.92.7/16 ===================
mount/dev/cdrom/mnt/cdrom/
Yum-y Install memcached
Systemctl start memcached
NETSTAT-TAUNL | grep 11211
================ Node2 172.16.92.2/16 ===================
mount/dev/cdrom/mnt/cdrom/
Yum-y Install Tomcat
Mkdir-pv/data/webapps/root/{lib,classes,meta-inf,web-inf}
vim/data/webapps/root/index.jsp
<%@ page language= "java"%>
<body>
<table align= "centre" border= "1" >
<tr>
<td>session id</td>
<% Session.setattribute ("centos7.com", "centos7.com"); %>
<td><%= Session.getid ()%></td>
</tr>
<tr>
<td>created on</td>
<td><%= session.getcreationtime ()%></td>
</tr>
</table>
</body>
============================
Cd/usr/share/tomcat/lib
wget http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager-tc7/1.8.3/ Memcached-session-manager-tc7-1.8.3.jar
wget Http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager/1.8.3/memcached-session-manager-1.8.3.jar
wget Http://repo1.maven.org/maven2/de/javakaffee/msm/msm-javolution-serializer/1.8.3/msm-javolution-serializer-1.8.3.jar
wget Http://mirrors.ibiblio.org/maven2/net/spy/spymemcached/2.11.1/spymemcached-2.11.1.jar
wget Http://www.java2s.com/Code/JarDownload/javolution/javolution-5.4.3.1.jar.zip
Unzip Javolution-5.4.3.1.jar.zip
Cp/etc/tomcat/server.xml{,.bak}
Vim/etc/tomcat/server.xml
<engine name= "Catalina" defaulthost= "node2.centos7.com" >
Unpackwars= "true" autodeploy= "true" >
<context path= "" docbase= "/data/webapps/root" reloadable= "true" >
<manager classname= "De.javakaffee.web.msm.MemcachedBackupSessionManager"
Memcachednodes= "n1:172.16.92.6:11211,n2:172.16.92.7:11211"
failovernodes= "N1"
Requesturiignorepattern= ". *\. (ICO|PNG|GIF|JPG|CSS|JS) $ "
transcoderfactoryclass= "De.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"/>
</Context>
============================
Systemctl Start Tomcat.service
Windows browser Access http://172.16.92.2:8080/
TomcatA.centos7.com
Session ID ab327a3b9b86d87d51cb2d31297d2c4a-n2
Created on 1446005990634
================ Node3 172.16.92.3/16 ===================
mount/dev/cdrom/mnt/cdrom/
Yum-y Install Tomcat
Mkdir-pv/data/webapps/root/{lib,classes,meta-inf,web-inf}
vim/data/webapps/root/index.jsp
<%@ page language= "java"%>
<body>
<table align= "centre" border= "1" >
<tr>
<td>session id</td>
<% Session.setattribute ("centos7.com", "centos7.com"); %>
<td><%= Session.getid ()%></td>
</tr>
<tr>
<td>created on</td>
<td><%= session.getcreationtime ()%></td>
</tr> </table>
</body>
============================
Cd/usr/share/tomcat/lib
wget Http://www.java2s.com/Code/JarDownload/javolution/javolution-5.4.3.1.jar.zip
wget Http://mirrors.ibiblio.org/maven2/net/spy/spymemcached/2.11.1/spymemcached-2.11.1.jar
wget Http://repo1.maven.org/maven2/de/javakaffee/msm/msm-javolution-serializer/1.8.3/msm-javolution-serializer-1.8.3.jar
wget Http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager/1.8.3/memcached-session-manager-1.8.3.jar
wget http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager-tc7/1.8.3/ Memcached-session-manager-tc7-1.8.3.jar
Unzip Javolution-5.4.3.1.jar.zip
Cp/etc/tomcat/server.xml{,.bak}
Vim/etc/tomcat/server.xml
<engine name= "Catalina" defaulthost= "node3.centos7.com" >
Unpackwars= "true" autodeploy= "true" >
<context path= "" docbase= "/data/webapps/root" reloadable= "true" >
<manager classname= "De.javakaffee.web.msm.MemcachedBackupSessionManager"
Memcachednodes= "n1:172.16.92.6:11211,n2:172.16.92.7:11211"
failovernodes= "N1"
Requesturiignorepattern= ". *\. (ICO|PNG|GIF|JPG|CSS|JS) $ "
transcoderfactoryclass= "De.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"/>
</Context>
============================
Systemctl Start Tomcat.service
Windows browser Access http://172.16.92.3:8080/
TomcatB.centos7.com
Session ID b22e48aa2a89bce2bad4021d9e912e03-n2
Created on 1446005950406
================ Node1 172.16.92.1/16 ===================
Nginx to do tomcat1,2 reverse proxy and load balancer
Installing the Epel source
Wget-o/etc/yum.repos.d/epel7.repo Http://mirrors.aliyun.com/repo/epel-7.repo
Yum-y Install Nginx
Cd/etc/nginx
CP Nginx.conf{,.bak}
Vim nginx.conf
: 1, $d--Delete all contents
: Set paste--and paste the following
################
User Nginx;
Worker_processes Auto;
Error_log/var/log/nginx/error.log;
Pid/run/nginx.pid;
Events {
Worker_connections 1024;
}
HTTP {
Log_format Main ' $remote _addr-$remote _user [$time _local] "$request" '
' $status $body _bytes_sent ' $http _referer '
' "$http _user_agent" "$http _x_forwarded_for";
Access_log/var/log/nginx/access.log main;
Sendfile on;
Tcp_nopush on;
Tcp_nodelay on;
Keepalive_timeout 65;
Types_hash_max_size 2048;
Include/etc/nginx/mime.types;
Default_type Application/octet-stream;
include/etc/nginx/conf.d/*.conf;
Upstream Tcsrvs {
Server node2.centos7.com:8080;
Server node3.centos7.com:8080;
}
server {
Listen default_server;
Listen [::]:80 default_server;
server_name _;
root/usr/share/nginx/html;
# Load configuration files for the default server block.
include/etc/nginx/default.d/*.conf;
Location/{
}
Location ~* \. (Jsp|do) $ {
Proxy_pass Http://tcsrvs;
}
Error_page 404/404.html;
Location =/40x.html {
}
Error_page 502 503 504/50x.html;
Location =/50x.html {
}
}
}
==================end of Nginx.conf
Nginx-t
> appear ok and successful related sentences there's no problem.
Systemctl Start Nginx.service
ss-tanl | grep 80
Windows Explorer accesses http://172.16.92.1/index.jsp, polling on the following two pages, but the session ID is the same
-----------------------------------------------------------------------
TomcatA.centos7.com
Session ID de4fb78238a882475c86e1735779f5c9-n2
Created on 1446006726402
-----------------------------------------------------------------------
TomcatB.centos7.com
Session ID de4fb78238a882475c86e1735779f5c9-n2
Created on 1446006726402
-----------------------------------------------------------------------
================ Node7 172.16.92.6/16 ===================
Systemctl Stop memcached
Windows Explorer accesses http://172.16.92.1/index.jsp, polling on the following two pages,
But the session ID is the same, and the session ID is obtained from another cache server.
-----------------------------------------------------------------------
TomcatA.centos7.com
Session ID de4fb78238a882475c86e1735779f5c9-n1
Created on 1446007835727
-----------------------------------------------------------------------
TomcatB.centos7.com
Session ID de4fb78238a882475c86e1735779f5c9-n1
Created on 1446007835727
-----------------------------------------------------------------------
Using memcached to cache TOMCAT7 session information
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