When creating a new field, I received a Database Exception error -

SQLSTATE[42000]: Syntax error or access violation: 3057 Incorrect user-level lock name '/var/www/storage/runtime/compiled_classes/ElementQueryBehavior.php'.

Loading an older database backup did not resolve the error, and neither did checking out an older branch. I am unable to access the panel or the site itself.

Installed Plugins

  • SEOmatic
  • Element API
  • SuperTable

Any assistance would be greatly appreciated

Error Screenshot

Edit: After dropping/creating the database multiple times, I am now getting this error instead

Content Behavior Not Found

Edit 2: Here is a link to the full stack trace, which was posted to imgur due to the length


1 Answer 1


I just ran into the exact same error on my Vagrant/Homestead environment when creating a field just with the lock name '/home/vagrant/code/craft/storage/runtime/compiled_classes/ContentBehavior.php'.

After getting this error the page cannot be accessed at all.

I'm using SuperTable, too.

The error itself seems to come from MySQL 5.7 where there is a character limit for the user-level lock names of 64 characters. Here the GET_LOCK statement fails. I just don't know how to fix it right now.

  • If you're using Homestead, just switch it to use MariaDB and away you go. You just change a line in the YAML and do homestead up --provision Oct 13, 2018 at 22:10
  • Is MariaDB the preferred option for Craft 3? If this is an avoidable error, I would prefer to just avoid it, but if using MySQL will continue to cause issues I would definitely want to look into MariaDB Oct 15, 2018 at 13:49
  • Thank you @andrew.welch Seems to work so far. I ran into problems with MySQL and Craft in different environments. Hope this has an end now. :)
    – stepbyweb
    Oct 15, 2018 at 18:12
  • Agree with stepbyweb, thank you for the solution Andrew. I was also able to resolve the issue by dropping in MariaDB Oct 15, 2018 at 19:50
  • 2
    Thanks, @TheCodeNomad - this shouldn't be an issue going forward with github.com/craftcms/cms/commit/…
    – Brad Bell
    Oct 16, 2018 at 20:48

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