I tested the hibernation state, here it is not the reason. The crash happens independently on whether the server is in hibernation state or not.
Originally Posted by pedrotski
If it has connection issues, there is a problem elsewhere in your setup.
That's a matter of opinion. Mine is that connection loss with remote database is a normal, expected situation and making watchdog restart the server whenever it happens is redundant.
Would be nice to see the crash reason in the logs, now it is extremely difficult to identify this kind of crashes.