MySQL does not start after an Plesk update (14-March, 2017)

Note: article describes the issue caused by MySQL update from Atomic repository, make sure you have Atomic repository enabled before applying fix: # yum repolist Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * atomic: www4.atomicorp.com After update MySQL cannot be started. In Plesk the following error message is shown: Error in Plesk: ERROR:…