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Class: Distributed Session Manager


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      Classes of Robin Schuil  >  Distributed Session Manager  >  Download  >  Support forum Support forum  >  RSS 1.0 feed RSS 2.0 feed Latest changes  >  Stumble It! Stumble It!  >  Bookmark in del.icio.us Bookmark in del.icio.us  
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  • Supplied by:

    Picture of Robin Schuil
    Name: Robin Schuil <e-mail contact>
    Published packages: 3
    Country: The Netherlands The Netherlands - PHP jobs in The Netherlands
    Home page: http://lunchpauze.blogspot.com/
    Age: 25
    All time rank: 925
    Week rank: 1004

    Browse this author's classes

  • 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

  • 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

  • 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.

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  • Applications that use this class:

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  • 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
    NOTICE: if you are using a download manager program like 'GetRight', please Login before trying to download this archive.

 
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