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MySQL server has gone away​ error on Adobe Commerce on cloud

Last update: Thu Jul 27 2023 00:00:00 GMT+0000 (Coordinated Universal Time)

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This article talks about the solution for the issue where you receive an " SQL server has gone away " error message in the cron.log file. A range of symptoms including image file importing issues or deployment failure may be experienced.

Affected products and versions

Issue

You receive an " SQL server has gone away " error message in the cron.log file.

Steps to reproduce

Import files and trigger a deployment.

Expected result

Successful deployment.

Actual result

Error message in cron.log :" SQLSTATE[HY000] [2006] MySQL server has gone away at/app/AAAAAAAAA/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php:144"

Cause

The default_socket_timeout value is set too low. This is caused by the setting default_socket_timeout . If php doesn’t receive anything from the MySQL database within this period, it assumes it is disconnected and throws the error.

Solution

  1. Check the current timeout period for default_socket_timeout by running in the CLI: php -i |grep default_socket_timeout
  2. Depending on the timeout setting increase, the default_socket_timeout variable to the expected longest possible run time in the /etc/platform/<project_name>/php.ini file. It is suggested that you set between 10-15 mins.
  3. Commit it to GIT and redeploy.
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