Nagios Support Forum

No, I am just running few backups scripts(modified version of what NagiosXI provides, just added rsync/scp the backup files to a remote server...) from main Nagios server to automatically take the backups of mySQL DB and postgresSQL and also entire nagiosXI backup, scheduled daily.

Do post back if it happens again. I am with mguthrie in that it appears something is truncating the tables.