Hi, this is not really ZF related, but I hope you don't mind more generic question.
I've never used any other session save handler than the native php one. As far as I know it raises concerns only related to a) the disk read/write security and/or b) potential load balancing problems (sync between servers and session save paths). I am OK with those. Application issues such as "number of active users" are no problem as well. I would guess the native one is also more performant (perhaps not true if there are "thousands+" of active sessions). Are you aware of anything else I should take into account? Thanks in advance. m.