Support » Plugin: Redis Object Cache » A foreign object cache drop-in was found. To use Redis for object caching, pleas

  • Resolved amityweb

    (@amityweb)


    I have added this to LOADS of websites over the years. But recently, every time I login to a site there is the message “A foreign object cache drop-in was found. To use Redis for object caching, please enable the drop-in” and this plugin is disabled.

    We have not done anything the sites, other than automated WP and plugin updates.

    So do you know why this happens, and can your plugin not override this, I dont really want to login to hundreds of websites to check, and then what if it happens again!

    Or is there a WP CLI command we can add to our weekly update scripts, to run after updates just in case its turned off again?

    Thanks a lot!

    • This topic was modified 1 month, 1 week ago by amityweb.
Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Author Till Krüss

    (@tillkruess)

    Hey @amityweb!

    Yes, you can use wp redis update-dropin to ensure the correct object cache drop-in is in place.

    You’ll see that warning if there is another object cache in use and this plugin isn’t being utilized.

    Thread Starter amityweb

    (@amityweb)

    Ok will give that a go, thank you. We have a script that runs on multiple servers to update WP and plugins, so will add this command to run after all that, to reset it back.

    Do you know why it would change, what other object cache would change it? We’re only using Redis.

    Plugin Author Till Krüss

    (@tillkruess)

    You seem have another plugin installed that replaces the object-cache.php drop-in without asking, otherwise the message wouldn’t pop up. Can you post your full plugin list?

Viewing 3 replies - 1 through 3 (of 3 total)
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