Nginx+memcahed+tomcat to realize the resource sharing of session

First, the premise
Reference Blog : http://blog.csdn.net;
related package download, including the need for Lib jar package : http://pan.baidu.com/;
Environment : CentOS 6.5 (64-bit), Jdk8_8u5, tomcat7.054, nginx1.47, libevent-2.0, memcached-1.4.20
– Two virtual machines
10.1.1.127//tomcat,nginx,memcached
10.1.1.128//Tomcat

Second, the configuration
(1), the configuration of the Tomcat machine
1, uninstall the JDK, using the RPM package installation
Bulk uninstall of your own JDK-related packages

Rpm–qa |grep java | Xargs rpm-e--nodeps

2. RPM Installation

RPM-IVH jdk-8u5-linux-x64.rpm//default installation in/usr/java

MV change to/USR/JAVA/JDK

java-version//Verify Installation success

3. Write the person environment disposition

Vim/etc/profile

java_home=/usr/java/jdk

jre_home=/usr/java/jdk/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

source/etc/profile//environment effective

4. Decompression Tomcat test run

TAR–ZXF apache-tomcat-7.0.54.tar.gz& #160; -c/usr/local

MV apache-tomcat-7.054 Tomcat

vim/etc/sysconfig/iptables//Firewall open 8080 Port-a

Rh-firewall-1-input-m State--state new-m tcp-p TCP--dport 8080-j ACCEPT

service iptables restart

http://10.1 .1.127:8080///Open tomcat, test Tomcat installation success

5. Import msm-1.7 packages to tom/lib/(tomcat for each node)
Refer to this Blog
6. Change Tomcat session save mode (Non-sticky,kryo)
– The following is added to the configuration conf/context.xml file
#vim Conf/context.xml

<manager classname= "De.javakaffee.web.msm.MemcachedBackupSessionManager"

memcachednodes= "N1 : 10.1.1.217:11211 "

sticky=" false "

lockingmode=" Auto "

sessionbackupasync=" false "

Requesturiignorepattern= ". *\. (ICO|PNG|GIF|JPG|CSS|JS) $ "

sessionbackuptimeout=" 1000 "transcoderfactoryclass=" De.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory "

/>

Parameter Reference Official document
Chapters in Https://code.google.com/p/memcached-session-manager/wiki/SetupAndConfiguration overview over Memcached-session-manager Configuration Attributes

(2) Nginx Installation Configuration
1. Source Package Installation

#yum install pcre*//nginx dependent pcre class library

#useradd nginx

#tar xf/share/soft/lamp/nginx/nginx-1.4.7.tar.gz-c/usr/ src/

#cd/usr/src/nginx-1.4.7

#./configure--prefix=/usr/local/nginx--user=nginx--group=nginx--with-http _gzip_static_module--with-http_stub_status_module

# make && make install

2.nginx reverse proxy to implement the two tomcat servers behind the load Balancing agent
nginx.conf Configuration

User Nginx Nginx;

Worker_processes 5;

Error_log Logs/error.log;

#error_log Logs/error.log notice;

#error_log Logs/error.log info;

PID Logs/nginx.pid;

Events {

worker_connections 1024;

Use Epoll;

}

HTTP {

Upstream session {

server 10.1.1.217:8080 weight=1 max_fails=2 fail_timeout=30s;

Server 10.1.1.218:8080 weight=1 max_fails=2 fail_timeout=30s;

}

server {

listen;

server_name 10.1.1.217;

root/nginxroot/;

Location ~ \. (txt|jsp) $ {

proxy_pass http://session;

}

Proxy_set_header x-real-ip $remote _addr;

Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;

Proxy_set_header Host $http _host;
}
}

(3). Installation of memcached
Install Libevent first (memcached dependent libevent)
1. Installation

#tar zxvf libevent-2.0.21-stable.tar.gz

#cd & #160 zxvf libevent-2.0.21-stable

#/configure--prefix=/ usr

#make && make install

# tar zxvf memcached-1.4.20.tar.gz

#cd memcached-1.4.20

#./ Configure--WITH-LIBEVENT=/USR

#make && make install

2. Start, Close command
Boot-D background run –m memory size –p port –c Maximum concurrent number

/usr/local/bin/memcached-d-M 128-u root-p 11211-c 256-p/var/run/memcached.pid

kill ' Cat/var/run/memcached1.pid ' & #160; Shut down

Reference Link: http://hxq0506.iteye.com/blog/1388971

Third, testing
Boot order tomcat–nginx–memcached

Test page test.jsp, put webapps/root:

Server Info:

sessionid:<%=session.getid ()%>

<br>

sessionip:<%=request.getservername ()%>

<br>

sessionport:<%=request.getserverport ()%>

<br>

<%

OUT.PRINTLN ("127"); Mark Back-end node

%>

Result: Session remains unchanged

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