This time we mainly demonstrate the operation on win7 64.
Web application construction
Simple construction of a web application, I will not describe it here. For details, you can visit my Github.
For the convenience of display, make a difference in success.jsp, add 8080 to one and 8081 to the other.
Memcached installation, configuration, startup
This example uses 2 memcached nodes, both on one machine.
Operation on win7 64. The resource can be downloaded at this link I am link.
After unzipping, enter cmd to enter this directory. Remember to run it as an administrator.
Install
<code>memcached <span>-d</span> install</code>
Run
<code>memcached <span>-d</span> start</code>
You can also start multiple memcached services, you can refer to this link.
Create
<code>sc <span><span>create</span><span>"Memcached Server"</span><span>start</span>= auto binPath= <span>"memcached_path -d runservice -m 32 -p 11311 -l 127.0.0.1"</span> DisplayName= <span>"Memcached Server"</span></span></code>
Pay attention to modify the port, the default is 11211
Can be accessed via Telnet: telnet 127.0.0.1 11211
Telnet interface quit can exit
Commands to start, stop, and uninstall Memcached Server:
<code>sc start <span>"Memcached Server"</span><span>//启动</span> sc stop <span>"Memcached Server"</span><span>//停止</span> sc <span>delete</span><span>"Memcached Server"</span><span>//卸载该服务</span></code>
You can see the memcached service on the task manager
Tomcat configuration
This time I use 2 tomcat7.0.62 examples
Tomcat cluster configuration, each node in the cluster realizes session sharing by sharing the session stored in the cache Memcached: if the Tomcat service on one machine is stopped, the session data on other peer servers can still be cached from Memcached Read in, so that the problem of session loss will not occur.
Use memcached-session-manager, official documentation.
The configuration of tomcat mainly includes two aspects. First, you need to download the required packages and put them in the lib directory under the tomcat installation directory (strictly speaking, it should be $CATALINA_HOME/lib/)
The jar required for the first msm, the jar required for serialization,
The second configuration context.xml
required jar package
maven configuration corresponding to tomcat 7
The following 3 jar packages are required;
memcached-session-manager-version.jar,
memcached-session-manager-tc7-version.jar,
spymemcached-version.jar
can be downloaded from maven below
<code><span><<span>dependency</span>></span><span><<span>groupId</span>></span>de.javakaffee.msm<span></<span>groupId</span>></span><span><<span>artifactId</span>></span>memcached-session-manager-tc7<span></<span>artifactId</span>></span><span><<span>version</span>></span>1.8.3<span></<span>version</span>></span><span></<span>dependency</span>></span></code>
4 kinds of serialization
<code>kryo-serializer： <span><<span>dependency</span>></span><span><<span>groupId</span>></span>de.javakaffee.msm<span></<span>groupId</span>></span><span><<span>artifactId</span>></span>msm-kryo-serializer<span></<span>artifactId</span>></span><span><<span>version</span>></span>version<span></<span>version</span>></span><span></<span>dependency</span>></span>javolution: <span><<span>dependency</span>></span><span><<span>groupId</span>></span>de.javakaffee.msm<span></<span>groupId</span>></span><span><<span>artifactId</span>></span>msm-javolution-serializer<span></<span>artifactId</span>></span><span><<span>version</span>></span>version<span></<span>version</span>></span><span></<span>dependency</span>></span>xstream: <span><<span>dependency</span>></span><span><<span>groupId</span>></span>de.javakaffee.msm<span></<span>groupId</span>></span><span><<span>artifactId</span>></span>msm-xstream-serializer<span></<span>artifactId</span>></span><span><<span>version</span>></span>version<span></<span>version</span>></span><span></<span>dependency</span>></span>flexjson: <span><<span>dependency</span>></span><span><<span>groupId</span>></span>de.javakaffee.msm<span></<span>groupId</span>></span><span><<span>artifactId</span>></span>msm-flexjson-serializer<span></<span>artifactId</span>></span><span><<span>version</span>></span>version<span></<span>version</span>></span><span></<span>dependency</span>></span></code>
The jar packages required for various serializations are as follows:
- kryo-serializer: msm-kryo-serializer, kryo-serializers, kryo, minlog, reflectasm, asm
- javolution-serializer: msm-javolution-serializer, javolution
- xstream-serializer: msm-xstream-serializer, xstream, xmlpull, xpp3_min
- flexjson-serializer: msm-flexjson-serializer, flexjson
$CATALINA_HOME/lib/The situation of adding jar is as follows
context.xml configuration
That is, modify the content under the Context node in the $CATALINA_HOME/conf/context.xml file , submit the MSM configuration.
It mainly includes using memcached to manage sticky sessions and non-sticky sessions and using membase to manage non-sticky sessions.
The example is based on two memcached instances on one host. The serialization method used in the example is kryo.
This time, sticky sessions are used for management. As for non-sticky ones, you can configure them yourself or add them next time. The configuration is as follows. The two tomcat configurations are the same.
<code><Context> <span>...</span><Manager className=<span>"de.javakaffee.web.msm.MemcachedBackupSessionManager"</span> memcachedNodes=<span>"n1:localhost:11211,n2:localhost:11311"</span> sticky=<span>"false"</span> sessi>"false"</span> lockingMode=<span>"auto"</span> requestUriIgnorePattern=<span>".*\.(ico|png|gif|jpg|css|js)$"</span>transcoderFactoryClass=<span>"de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"</span>/> </Context> </code>
Nginx installation, configuration, startup
download the stable version from the official website,
decompress it and enter the directory,
<code>start nginx <span>// 启动</span></code>
In this way, the nginx service will be started. Open the task manager and check the nginx.exe process. Two processes will be displayed and occupy system resources, which is quite small. Then open the browser and enter http://127.0.0.1/ to see the nginx welcome page, which is very friendly.
<code>nginx <span>-s</span> stop <span>// 停止nginx</span> nginx <span>-s</span> reload <span>// 重新加载配置文件</span> nginx <span>-s</span> quit <span>// 退出nginx</span></code>
By default, Nginx uses the default configuration file nginx.conf, modify it as follows:
<code><span>#user nobody;</span><span>worker_processes</span><span>2</span>;
<span>#error_log logs/error.log;</span><span>#error_log logs/error.log notice;</span><span>#error_log logs/error.log info;</span><span>#pid logs/nginx.pid;</span><span>events</span> {
<span>worker_connections</span><span>1024</span>;
}
<span>http</span> {
<span>include</span> mime.types;
<span>default_type</span> application/octet-stream;
<span>log_format</span> main <span>'<span>$remote_addr</span> - <span>$remote_user</span> [<span>$time_local</span>] "<span>$request</span>" '</span><span>'<span>$status</span><span>$body_bytes_sent</span> "<span>$http_referer</span>" '</span><span>'"<span>$http_user_agent</span>" "<span>$http_x_forwarded_for</span>"'</span>;
<span>access_log</span> logs/access.log main;
<span>sendfile</span><span>on</span>;
<span>#tcp_nopush on;</span><span>#keepalive_timeout 0;</span><span>#keepalive_timeout 65;</span><span>#gzip on;</span><span>upstream</span> localhost {
<span>#ip_hash;</span><span>server</span> localhost:<span>8080</span> weight=<span>1</span>;
<span>server</span> localhost:<span>8081</span> weight=<span>1</span>;
}
<span>server</span> {
<span>listen</span><span>80</span>;
<span>server_name</span> localhost;
<span>charset</span> utf-<span>8</span>;
<span>#charset koi8-r;</span><span>#access_log logs/host.access.log main;</span><span>location</span> / {
<span>root</span> html;
<span>index</span> index.html index.htm;
<span>proxy_pass</span><span>http://localhost</span>;
<span>proxy_connect_timeout</span><span>2s</span>;
<span>proxy_set_header</span> X-Real-IP <span>$remote_addr</span>;
<span>proxy_set_header</span> X-Forwarded-For <span>$proxy_add_x_forwarded_for</span>;
}
<span>location</span><span>~ ^/(WEB-INF)/</span> {
<span>deny</span> all;
}
<span>#error_page 404 /404.html;</span><span># redirect server error pages to the static page /50x.html</span><span>#</span><span>error_page</span><span>500</span><span>502</span><span>503</span><span>504</span> /50x.html;
<span>location</span> = /50x.html {
<span>root</span> html;
}
<span># proxy the PHP scripts to Apache listening on 127.0.0.1:80</span><span>#</span><span>#location ~ \.php$ {</span><span># proxy_pass http://127.0.0.1;</span><span>#}</span><span># pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000</span><span>#</span><span>#location ~ \.php$ {</span><span># root html;</span><span># fastcgi_pass 127.0.0.1:9000;</span><span># fastcgi_index index.php;</span><span># fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;</span><span># include fastcgi_params;</span><span>#}</span><span># deny access to .htaccess files, if Apache's document root</span><span># concurs with nginx's one</span><span>#</span><span>#location ~ /\.ht {</span><span># deny all;</span><span>#}</span>
}
<span># another virtual host using mix of IP-, name-, and port-based configuration</span><span>#</span><span>#server {</span><span># listen 8000;</span><span># listen somename:8080;</span><span># server_name somename alias another.alias;</span><span># location / {</span><span># root html;</span><span># index index.html index.htm;</span><span># }</span><span>#}</span><span># HTTPS server</span><span>#</span><span>#server {</span><span># listen 443 ssl;</span><span># server_name localhost;</span><span># ssl_certificate cert.pem;</span><span># ssl_certificate_key cert.key;</span><span># ssl_session_cache shared:SSL:1m;</span><span># ssl_session_timeout 5m;</span><span># ssl_ciphers HIGH:!aNULL:!MD5;</span><span># ssl_prefer_server_ciphers on;</span><span># location / {</span><span># root html;</span><span># index index.html index.htm;</span><span># }</span><span>#}</span>}
</code>Test
Login page 
Success Page
success1 
success2 
When tomcat (8080) is turned off, call tomcat (8081) to display success2;
When a memcached service is closed, the display is normal.
Reference
Nginx+Memcached+Tomcat cluster configuration practice (Sticky Session)
Start multiple Memcached services on the same Windows machine
MSM–Memcached_Session_Manager introduction and use
memcached-session-manager configuration
Installation and configuration of Nginx under Windows
Copyright statement: This article is an original article by the blogger and may not be reproduced without the permission of the blogger.
The above introduces the Nginx+Memcached+Tomcat cluster configuration, including the relevant aspects. I hope it will be helpful to friends who are interested in PHP tutorials.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
