Drupal 10: Recovering From A Broken Cron Run

20th September 2023

If Drupal's cron fails then it will be in a broken state that will give you the following error if you attempt to run it again:

Attempting to re-run cron while it is already running

To recover from this error you need to delete the 'cron' record from the semaphore table.

DELETE FROM semaphore WHERE name='cron';

Run this via Drush using the following command.

drush sql:query "DELETE FROM semaphore WHERE name='cron';"

Comments

Thanks a lot!

Submitted by eugene_rahunak on Mon, 05/06/2024 - 13:24

Just because I already ended up here once and it was not enough. :-) If above is not sufficient try also:

drush php-eval "\Drupal::lock()->release('cron');"

Submitted by Stefan on Wed, 07/09/2025 - 03:05

Thanks Stefan! Good to know :)

Philip Norton

Submitted by philipnorton42 on Wed, 07/09/2025 - 09:04