Apache2 is less mature and not nearly as well-tested as Apache1. If you run a threaded MPM then all bets are off. The thread safety status of most extensions and 3rd-party libraries are unknown. Threading problems tend to only show up under load and are nearly impossible to track down. So although everything may appear to work in initial testing, once your site starts getting hit it may fail in weird and wonderful ways.
You can run Apache2 in prefork mode to avoid the threading issues, but if you are going to do that I don't see why you would run Apache2. Stick with the well-tested Apache1. -Rasmus On 27 Oct 2003, Manu wrote: > On www.php.net there is a warning: Don't use apache 2.0 AND php in > production environments. What does it mean? What problems could I get? > Thanks in advance > Manu >