Title: Please Explain “Cache WP-Admin” Setting
Last modified: March 24, 2025

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# Please Explain “Cache WP-Admin” Setting

 *  Resolved Anonymous User
 * (@anonymized-23173868)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/)
 * Can you clarify what the “cache wp-admin” setting does exactly? It’s under the
   object cache section, so I assume it’s caching some kind of DB request but how
   does it work exactly? What is cached and for how long? I had it turned on and
   certain transients I was setting using the “set_transient” function were not 
   expiring properly.

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Plugin Support [litetim](https://wordpress.org/support/users/litetim/)
 * (@litetim)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18379541)
 * Short answer: will use object cache to get/store admin data.
   Small description:
   [https://docs.litespeedtech.com/lscache/lscwp/cache/#cache-wp-admin](https://docs.litespeedtech.com/lscache/lscwp/cache/#cache-wp-admin)
 *  Thread Starter Anonymous User
 * (@anonymized-23173868)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18379721)
 * Yeah I read that but it was pretty generic. Why did using set_transient not work
   properly? I checked things out and the transient did not have the expiration 
   set. It said “persistent”.
 *  Plugin Support [litetim](https://wordpress.org/support/users/litetim/)
 * (@litetim)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18382013)
 * **set_transient** uses the database which can become a bottleneck very fast if
   the site is visited.
   Instead of using **MySQL/Maria DB** we use object cachce
   libraries(**Redis, Memcache**) which are faster and can support more traffic.
 *  Thread Starter Anonymous User
 * (@anonymized-23173868)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18382279)
 * So you just bypass the DB and set the value directly in Redis and ignore the 
   expiration? Seems like that WP-Admin setting should be toggled off by default.
    -  This reply was modified 1 year, 2 months ago by Anonymous User.
 *  Plugin Support [litetim](https://wordpress.org/support/users/litetim/)
 * (@litetim)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18382724)
 * Depends on your use: If you need data to be always non cached, I would turn it
   off 🙂
   If you turn it OFF, please turn **ON** this setting: [https://docs.litespeedtech.com/lscache/lscwp/cache/#store-transients](https://docs.litespeedtech.com/lscache/lscwp/cache/#store-transients),
   It will allow transients to be stored.
 *  Thread Starter Anonymous User
 * (@anonymized-23173868)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18383553)
 * OK so I think I understand now after some testing. My object life is set to 360
   seconds.
 * With WP-Admin set to on, it bypasses the DB and sets thing directly in Redis.
   Using this method, I am experiencing issues with expired data. Why is that expired
   transient not getting cleared out of Redis after 360 seconds?
 * With WP-Admin set to off and Store Transients turned on, the transient still 
   gets stored in the database before it then also gets put into Redis.
 * For both methods, it appears that the expiration I set in the set_transient function
   is ignored and the “Default Object Lifetime” value is used instead for both methods.
   I assume this is due to the differences of how set_transient expiration works
   and the set method for Redis.
 * Is this all correct?
 *  Plugin Support [litetim](https://wordpress.org/support/users/litetim/)
 * (@litetim)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18384426)
 * @thekendog pretty much on point
   I cannot guarantee the expiration is working 
   as you wrote, but you understood the functionality 🙂

Viewing 7 replies - 1 through 7 (of 7 total)

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 * 11 replies
 * 2 participants
 * Last reply from: [litetim](https://wordpress.org/support/users/litetim/)
 * Last activity: [1 year, 2 months ago](https://wordpress.org/support/topic/please-explain-cache-wp-admin-setting/#post-18384426)
 * Status: resolved