Nginx+tomcat+memcached Cache Sharing Session

Nginx+tomcat+memcached Cache Sharing Session

There are 4 official recommendations for the session's serialization scheme:

1. Java serialization

2. Msm-kryo-serializer

3. Msm-javolution-serializer

4. Msm-xstream-serializer

I'm using Msm-javolution-serializer here.

Basic architecture

System: CentOS 6.3

Front-end Nginx agent: 192.168.1.211

Backend tomcat+memcached Group: 192.168.1.212,192.168.1.213

One, Nginx installation configuration

1. Create a user who runs Nginx

[[Email protected] ~] #useradd-R nginx

2. Installing Nginx

First install dependent software pcre,openssl-devel, etc.

[[Email protected] ~] #tar-xf pcre-8.37.tar.gz-c/usr/local/#nginx编译需要的是pcre的源码

[[Email protected] ~] #yum-y install Openssl-devel

Compile and install Nginx

[[Email protected] ~] #tar-xf nginx-1.9.9.tar.gz

[[Email protected] ~] #cd nginx-1.9.9

[Email protected] ~]#./configure/configure--prefix=/usr/local/nginx--user=nginx--group=nginx--with-http_stub_ Status_module--with-http_ssl_module--with-http_gzip_static_module--with-http_flv_module--with-pcre=/usr/local/ pcre-8.37

[[Email protected] ~] #make; make install

3, the configuration of Nginx Agent

[[Email protected] ~] #vim/usr/local/nginx/conf/nginx.conf

User Nginx Nginx;

Worker_processes 1;

Events {

Worker_connections 1024;

}

HTTP {

Include Mime.types;

Default_type Application/octet-stream;

Sendfile on;

Keepalive_timeout 65;

server {

Listen 80;

server_name localhost;

Location/{

Proxy_pass Http://tomcat;

Proxy_set_headerHost$host;

Proxy_set_headerx-real-ip$remote _addr;

Proxy_set_headerx-forwarded-for$proxy _add_x_forwarded_for;

}

Error_page 502 503 504/50x.html;

Location =/50x.html {

root HTML;

}

}

Upstream Tomcat {

Server 192.168.1.212:8080;

Server 192.168.1.213:8080;

}

}

4. Start Nginx

[Email protected] ~]#/usr/local/nginx/sbin/nginx

Second, Tomcat installation configuration

1. Installation and configuration of JDK

[Email protected] ~]#./jdk-8u73-linux-x64.rpm

Find JDK Home Directory

[[Email protected] ~] #find/usr-type d-name "jdk*"

Configuring Java (JDK) environment variables

[[Email protected] ~] #vim/etc/profile.d/java.sh

Export java_home=/usr/java/jdk1.8.0_73

Export path= $PATH: $JAVA _home/bin

Reading variables

[Email protected] ~]#. /etc/profile.d/java.sh

Confirm that the JDK is active

[Email protected] ~]# java-version

Java Version "1.8.0_73"

Java (TM) SE Runtime Environment (build 1.8.0_73-b02)

Java HotSpot (TM) 64-bit Server VM (build 25.73-b02, Mixed mode)

2. Tomcat installation Configuration

[[Email protected] ~] #tar-xf apache-tomcat-7.0.68.tar.gz-c/usr/local/

[[Email protected] ~] #cd/usr/local/

[[Email protected] ~] #ln-SV apache-tomcat-7.0.68 Tomcat

Download the MSM library file

Using the Javolution serialization framework, you need to provide the following library files:

Https://memcached-session-manager.googlecode.com/files/memcached-session-manager-1.6.3.jar

Https://memcached-session-manager.googlecode.com/files/memcached-session-manager-tc7-1.6.3.jar

Https://memcached-session-manager.googlecode.com/files/msm-javolution-serializer-1.6.2.jar

Http://memcached-session-manager.googlecode.com/svn/maven/javolution/javolution/5.4.3.1/javolution-5.4.3.1.jar

Https://spymemcached.googlecode.com/files/spymemcached-2.8.4.jar

Put the above 5 library files into/usr/local/tomcat/lib/

Modify Tomcat's configuration file Context.xml to enable Tomcat session sharing

[[Email protected] ~] #vim/usr/local/tomcat/conf/context.xml #将下面配置复制到 <Context> and </Context>, notice the actual modification of IP

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

Memcachednodes= "n1:192.168.1.212:11211,n2:192.168.1.213:11211"

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

Sessionbackupasync= "false"

sessionbackuptimeout= "100"

Transcoderfactoryclass= "De.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"

Copycollectionsforserialization= "false"

/>

Three, the memcached installation configuration

[[Email protected] ~] #yum-y install memcached

Add a user who runs memcached memcache

[[Email protected] ~] #useradd-R memcache

Open memcached

[[Email protected] ~] #memcached-M 64-d-u memcache-p 11211-l 192.168.1.212-c 1000-p/tmp/memcached.pid

Parameter description

The-D option is to start a daemon process;

-M is the amount of memory allocated to Memcache, in megabytes, I am 64MB;

-U is the user running memcache;

-L is the server IP address of the listener, I specify the server's native IP address here;

-P is set memcache listening port, I set up here 11211, preferably more than 1024 port;

The-c option is the maximum number of concurrent connections to run, the default is 1024, I set the 1000 here, according to the load of your server to set,

-P is set to save memcache PID file, I am here to save in/tmp/memcached.pid

Four, start Tomcat, check the log to confirm whether the Memcachedsessionservice load successfully

[[Email protected] ~] #grep ' Memcachedsessionservice '/usr/local/tomcat/logs/catalina.2016-03-05.log

Info:memcachedsessionservice finished initialization, sticky true, operation timeout, with node IDs [N1] and Failove R node IDs [N2]

See above to complete the initialization of the information, indicating that the normal startup.

Five, 192.168.1.212 and 192.168.1.213 two units are respectively completed the second to fourth steps above.

VI. Testing

212 and 213 respectively edit the index.jsp file for testing

[[Email protected] ~] #vim index.jsp

<%@ page contenttype= "Text/html;charset=utf-8" iselignored= "false"%>

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

<BR>

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

<BR>

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

<%

Out.println ("This is Tomcat Server 212");

%>

Empty/usr/local/tomcat/webapps/root Directory contents (note Backup first), put index.jsp into this directory

Browser Access 192.168.1.211

Appears as follows:

Sessionid:37aa312466ccbd3374f5c0842b2d3a0f-n1

sessionip:192.168.1.211

Sessionport:80 This is Tomcat Server 213

Continuous refresh access, if the SessionID is not changed, indicates a successful configuration.

Nginx+tomcat+memcached Cache Sharing Session