On Thu, 2005-04-28 at 16:18, John Madden wrote:
> > No, not at all. Three consecutive request can be served by three
> > different webservers.
> 
> So is there something in your SQL session handler (locking?) that prevents
> multiple servers from clashing?
> 
> John
> 

John, I do not understand why you are so concern about multiple servers
clashing and destroying the session data. This would be a problem if:

a) Two different users got the same SID. Something that it doesn't
happens, at least with Zend/PHP. This would be even a problem with only
one server.

b) Two different servers (or the same server) trying to access the
session data for the same SID at the same time. How can a user of SM 
generate two accesses to session data at the same time?. And how do you
use SM to generate two pararell accesses from two different webservers
in the cluster? 

PS.- I do not use locking in my SQL session handler (only normal
transactions). I have never had (or got reports from other users) about
this problem, but I am interested in this discusion to find out if in
theory this can happen in a webcluster running PHP. I am not convinced,
... yet ;)

-- 
Rafael Martinez, <[EMAIL PROTECTED]>
Center for Information Technology Services
University of Oslo, Norway

PGP Public Key: http://folk.uio.no/rafael/

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