After running composer and then initiating craft setup I keep getting this error:

Username: [admin]
Email: [email protected]
Site name: test
Site URL: test.com
Site language: [en-US]
Installing Craft...

Exception 'craft\errors\MigrationException' with message 'An error occurred while executing the "craft\migrations\Install migration: Error while sending QUERY packet. PID=25472'

in /vendor/craftcms/cms/src/db/MigrationManager.php:267

My MySQL version is 5.7.18-0ubuntu0.16.04.1.

  • Well, after trying a myriad of things, I ended up upping wait_timeout=10 to wait_timeout=100 & that did the trick. Also previously increased max_allowed_packet but that didnt seem to have an effect. Hope this helps someone.
    – Will
    Feb 2, 2018 at 19:56
  • 1
    Would you mind adding that as an official answer instead of a comment, @Will?
    – Brad Bell
    Feb 2, 2018 at 21:13

1 Answer 1


[SOLVED] By upping wait_timeout from 10 to 100 in my.cnf - seems to have fixed the issue.

Initial google searches for "Error while sending QUERY packet" led me to increase max_allowed_packet size, but this didn't fix the problem alone. Note, I'm not sure if both timeout and packet size need to be increased or just timeout nevertheless I have increased both and it works now.

Another side note on my server setup, the server I had problem with was a default Vesta CP ubuntu/mysql configuration. I had no problem installing Craft 3 on a different ubuntu 16 configured by Serverpilot.io.

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