If you are running an antivirus program on your Linux system, it must meet one of the following conditions:

• The anti-virus program is read-only; it only detects and reports issues but never modifies files
• The anti-virus program excludes the MySQL data directory (datadir), which is often set to the path db/data .

If the program does not meet either of those conditions, it can randomly corrupt the MySQL database and hence the controller.