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Class: Distributed Session Manager

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  Classes of Robin Schuil  >  Distributed Session Manager  >  Download .tar.gz .zip  >  Support forum Support forum (1)  >  Blog Blog  >  RSS 1.0 feed RSS 2.0 feed Latest changes  
Name: Distributed Session Manager
Support forum Support forum
Base name: phpdsm
Description: Manage sessions using distributed MySQL servers
Related classes: , , , , , , ,
Version: -
PHP version: -
License: GNU General Public License (GPL)
All time users: 1491 users
All time rank: 2178
Week users: 2 users
Week rank: 1677
Picture of Robin Schuil
Author: Robin Schuil <e-mail contact>
Packages: 3 Browse this author's classes Browse this author's classes
Country: The Netherlands The Netherlands - PHP jobs in The Netherlands
Age: 29
All time rank: 95230 in The Netherlands The Netherlands
Week rank: 836 Up23 in The Netherlands The Netherlands Up
Innovation award
Innovation award
Nominee: 3x


  Detailed description  
This class can be used as a replacement to the default PHP session manager class to store and retrieve sessions in distributed MySQL servers.

The class retrieves a list of MySQL server hosts from a configuration file in the INI format.

A random host is picked from the list to connect when it is necessary execute MySQL queries to store, retrieve, update or delete session data.

The MySQL server host connection timeout is set to a configurable value, so the class can skip a busy server and try connecting the next host in the list.

The session data may be stored on multiple servers at once to provide greater redundancy.

 

  Groups  
Group folder image Databases Database management, accessing and searching View top rated classes
Group folder image User Management User records, authentication and session handling View top rated classes

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  Innovation Award  
PHP Programming Innovation award nominee
August 2006
Number 7
 By default, user access session data is stored in files. However, in a clustered server environment, file storage is not very convenient.

Even when files are available to all cluster servers via a networked file system, it may cause data corruption if the session files are not locked from concurrent accesses. Networked file system locks may cause excessive delays.

This class provides an alternative solution by distributing session data storage using a MySQL database. It avoids some of the inconveniences of the concurrent accesses to session data stored in a networked file system.

Manuel Lemos

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  Files folder image Files  
File Role Description
Plain text file sessionmanager.php Class The Session Manager class
HTML file phpdsm.html Doc. Documentation
Image file sessions.png Screen Illustration

Download all files: phpdsm.tar.gz phpdsm.zip
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