Title: _wp_session Transients Overload
Last modified: August 31, 2016

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# _wp_session Transients Overload

 *  [eyesocialeyes](https://wordpress.org/support/users/eyesocialeyes/)
 * (@eyesocialeyes)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/_wp_session-transients-overload/)
 * Hello I am currently experiencing a huge problem with the participants database
   plugin. When the plugin is activated it creates thousands of transient entries
   into my wo_options table and crashes my website due to the number of entries 
   created that increase the size of my wp_options table to 100 MB!. They look like
   this option_name begins with “_wp_session” or “_wp_session_expires__” and option_value(
   varies depending on entry) = a:1:{s:14:”shortcode_atts”;O:21:”Recursive_ArrayAccess”:
   2:{s:12:”*container”;a:1:{i:2646;O:21:”Recursive_ArrayAccess”:2:{s:12:”*container”;
   a:0:{}s:8:”*dirty”;b:0;}}s:8:”*dirty”;b:1;}}. I have 100,000 visiting the site
   daily answering quizzes developed with the wp-proquiz plugin. If the participant
   database plugin is not activated then I receive none of these entries. As soon
   as I enable the participants database plugin the entries flood in as the hits
   accumulate on my website. What can I do to to prevent these transients from accumulating.
 * [https://wordpress.org/plugins/participants-database/](https://wordpress.org/plugins/participants-database/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [xnau webdesign](https://wordpress.org/support/users/xnau/)
 * (@xnau)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/_wp_session-transients-overload/#post-6987261)
 * I’ve had reports like this before, and I’m not sure what causes it. It seems 
   to be related to a specific server setup, where it loses the session value and
   then recreates the session instead of reusing it. I haven’t seen this on any 
   of the sites I work with the plugin on, so I don’t know if there is something
   in the plugin that causes this. Try changing the “use PHP sessions” setting under
   the advanced tab…it might help.
 * To manage the problem in the short term, there are plugins which can keep these
   entries from building up. Look for “expired transients” in the plugin repo for
   several options.

Viewing 1 replies (of 1 total)

The topic ‘_wp_session Transients Overload’ is closed to new replies.

 * ![](https://ps.w.org/participants-database/assets/icon-256x256.jpg?rev=1389807)
 * [Participants Database](https://wordpress.org/plugins/participants-database/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/participants-database/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/participants-database/)
 * [Active Topics](https://wordpress.org/support/plugin/participants-database/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/participants-database/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/participants-database/reviews/)

## Tags

 * [caching](https://wordpress.org/support/topic-tag/caching/)
 * [transients](https://wordpress.org/support/topic-tag/transients/)
 * [wp_options](https://wordpress.org/support/topic-tag/wp_options/)

 * 1 reply
 * 2 participants
 * Last reply from: [xnau webdesign](https://wordpress.org/support/users/xnau/)
 * Last activity: [10 years, 3 months ago](https://wordpress.org/support/topic/_wp_session-transients-overload/#post-6987261)
 * Status: not resolved