express redis session

Resources to use: Nginx Primary server One, Nginx standby server, use keepalived for downtime switching. Tomcat server two, by Nginx reverse proxy and load balancing, here can build server cluster. Redis server, used for session separation and sharing. Nginx Primary server: 192.168.50.133 Nginx Standby server: 192.168.50.135 Tomcat Project Server 1:192.168.50.137 Tomcat Project Server 2:192.168.50.139

SessionID to be considered legal (when the first login is not required, this time will create SessionID, return to the client), so it is very convenient, concise and efficient. Of course, this article is mainly about the PHP itself in the session "do the Dirty."Session is saved in the cachePHP to save the cache to Redis, you can use the configuration file, the

Using Redis to store PHP session By default, PHP will store the session information on the file system, no problem in a single machine situation, but when the system load increases, or in the case of high system availability requirements, the machine can not only keep up with the processing power, and when the machine fails, the entire system is in a state

request must add SessionID to be considered legal (when the first login is not required, this time will create SessionID, return to the client), so it is very convenient, concise and efficient. Of course, this article is mainly about the PHP itself in the session "do the Dirty."Session is saved in the cachePHP to save the cache to Redis, you can use the configur

Session into Cache (Redis), Db,sessionredis Why do you want to save the session in the cache As far as PHP is concerned, the session supported by the language itself is saved to the disk file in a file, saved in the specified folder, the saved path can be set in the configuration file or in the program using function

Session is put into the cache (redis), DB, and sessionredis. Session is stored in the cache (redis) and DB. Why does sessionredis store the SESSION in the cache? for php, the session supported by the language itself is saved to th

to your extension CP redis.so/usr/local/lib/php5/extension/join a line: Extension = redis.so Restart Nginx and php-fpm to output phpinfo to see Redis extension installation Complete Set PHP.ini Find Session.save_handler = Files This line, modified to Session.save_handler = Redis, the original session storage method to micro-

Session Mechanism Session_Start (), The Open (), read () method is invoked. And there is a certain probability of triggering the GC () method.Session_commit () or session_write_close (), triggers the Write (), close () method.Session_destory () triggers the Desotry () method. Technical Points 1, drive to implement open, read, write, close, Destory, GC six methods. Open: Connect redis Database Connect (). T

During cluster deployment, for high availability purposes, sessions are often shared and shared into two categories: Session replication and centralized management.Redis can play a more important role in the centralized management of the session.Two main factors restricting the session centralized sharing:1. The session must have an HA mechanism to ensure that th

= new Redis ();$test = $redis->connect (' 127.0.0.1 ', 6379);Var_dump ($test);$result = $redis->set (' Test ', ' 111cn.net ');Var_dump ($result); Result: BOOL (TRUE)$result = $redis->get (' Test ');Var_dump ($result); Result: String (one) "111cn.net" Modify the php.ini settings Session.save_handler = RedisSession.sa

Environment: Cent OS 7.0 (Virtual machine Environment), Nginx 1.9.8, Redis 3.2.1 One, background When using NGINX+TOMCAT to achieve load balancing, because nginx to different requests distributed to a certain tomcat,tomcat at the time of operation is different containers, because the session will be out of sync or missing issues. second, nginx installation and configuration 1, Nginx Installation Online reso

This article mainly and everyone introduced the PHP use Redis storage session of a warning location, with a certain reference value, interested in small partners can refer to, hope to help everyone. 1. Problem phenomena When the system page refreshes, occasionally it will error the following warnning, but not often appear: Warning:Unknown:Failed to write session