SymptomsThe "Pleskbackup.exe" tool finishes a backup task with the warning "Backup failed" and the following error is displayed in the backup log file:
"Cannot dump database content database_name of type mysql"
The problem is known to be caused by the active "On-Access Scanner" feature of the McAfee VirusScan anti-virus software installed on the Parallels Plesk Panel server. This functionality prevents Parallels Plesk Panel from backing up MySQL databases properly. To resolve this issue, exclude the folder where MySQL databases are stored from the list of folders scanned by McAfee VirusScan.
It is also recommended to enable the "Also exclude subfolders" option in McAfee VirusScan.