Since a few days, I have a strange problem with Zend sessions. It seems that Zend_Auth::getInstance()
seems to be empty at random moments, which causes users to be logged out. Sometimes this happens after a few seconds, sometimes a few minutes and sometimes not for a while. The application has been running without any problems for a year now on 2 different servers, both have this problem since a few days.
The cookie information matches the information in the user session db table. Both are still available when a user gets logged out (lifetime 864000 seconds). Cookie expires only 'at end of session'. This also only happens on production servers, not locally.
Anyone know what the problem can be?