My Servers MySQL keeps turning off and all the websites on the server can not connect to the respective database.

This has happened a couple of times in the past week.

I checked the MySQL logs and its showing 30 or so messages relating to my Zencart database MySQL user:

MyZenCartdatabaseUser [Warning] /usr/libexec/mysqld: Forcing close of thread

Im running a modified ZenCart 1.37. The site has been running fine for a couple of years, and I haven't modified anything recently.

However we are constantly adding new products (about 10,000 currently).

If anyone has any knowledge or ideas about this it would be greatly appreciated.

Thanks