I periodically have a large number of requests (thousands) to my site in the space of a few seconds.
I need to record the order in which the requests access the site so I can do downstream processing. The order does not have to be exact, I only need resolution down to 1 second: I don't care which order two requests are in if they are 10 ms apart. However I do care which order they are in if they are 1500 ms apart. The only problem is that I cannot figure out how to do this. I though about creating a datastore entity that contains a timestamp for each request to the site. (It doesn't matter if two or more entities have the same timestamp.) However I understand the clocks between machines in App Engine are not necessarily synchronised and could vary wildly. It would be ok for business logic if they only varied by 1-1.5 seconds at the most but I don't think this can be guaranteed. I thought about using memcache's atomic increment function instead of a timestamp for each new request but this could be wiped at any time so is no good. Even if the wipe occurs rarely, I cannot afford it to happen just once. How can I solve this type of problem? Best wishes, Dan -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
