Some follow up on this issue. There were four users on the site who's sessions appear to merge occassionally. It doesn't effect any one else.
All four of these people are from very different locations, one is on another continent altogether. I've implemented some IP matching, which expires the session if the actual IP and the IP stored in the session do not match. This solves it, but it just feels like a hack solution. It also doesn't work so well for people that are on proxies that alternate subnets during their sessions (I've seen this in the logs as well). I did have single threaded sessions checked before this event. I've also implemented locking on the session variable write functions, which wasn't there previously. Some strange things... The initial incident occurred around midnight, at which point my average memory usage from cf went from around 320,000 to 780,000 in under an hour. Strange behaviour for that hour of the night. I figured this might have been some kind of memory corruption issue. The one person I was corresponding with would be logged in automatically (not a feature of my site) with someone else's session - even immediately after I cycled the Cold Fusion service (thus, expiring all sessions, regardless of URL tokens, etc). This leads me to believe that it must be a caching or proxy-related issue. It's only happening to four people. There's no correlation between the data in their session variables, location, ISP, or anything else that I can determine. My logging does indicate that their IP addresses are not matching, and they are always swapped. Always the same four people. Strangest thing I've seen. G- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:191861 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
