Sometimes, it may be impossible to reconnect to the application after a database upgrade.
This is due to some cache issue :
Some versions update the 'user' object : for instance, V1.9 added the "initials" field on user.
In the PHP session, one user object is stored about the connected user.
If the session is not cleared, you may get after migration a user object that does not fit the user class any more, and you will not be able to reconnect, without explicit message or log.
To fix it, in most cases a browser cache cleaning will be enough to get things up.
In some cases you will also have to clean the PHP server cache, to destroy any existing session.
😉
It's curious, because i've reboot the server. The session should be cleared?
I'll see that on wednesday.
Thank you, and happy easter 🙂
Ols03
No, depending on PHP server, sessions are not cleared on reboot.