Craft CMS Stack Exchange is a question and answer site for administrators, end users, developers and designers for Craft CMS. It only takes a minute to sign up.
Sign up to join this community
Our Craft installation is now working on the Production Cloud-Server, except that if I'm logged in the CP, after maybe 30 sec the login-modal pops up and says that the session has expired. If I just reload the CP, I'm in again without the need to login.
That behaviour didn't show up on the development server. I didn't make any Configuration Settings like userSessionDuration or something like that, that's all default.
Any idea?
99% of the time when you see this behavior, it's because wherever your server is configured to save PHP's session files to either doesn't exist or isn't writable by PHP.
You can check where that path is by going to yourdomain.com/admin/utils/phpinfo and searching for session.save_path.
If you have the overridePhpSessionLocation config setting set to true, then Craft will set that path to craft/storage/runtime/cache.
In my case it was caused by session.handler = "memcache". I changed it to session.handler = "files" and made sure that session.save_path was writable and the issue was gone. This obviously didn't fix the cause, but was good enough as a solution for me at that time.
