Hey cryb, Going by a *very* shoddy test a few months ago, _most_ nodes seem to be within a second of each other, although I did get one or two requests that were +/- 10 seconds off average. Based on that, it's fair to expect around one second's accuracy most of the time.
In any case, I've since changed my own app's design such that it doesn't have a reliance on accurate timing from AppEngine, and I believe many designs can be changed similarly. If you need microsecond accuracy, you're probably building on the wrong platform. :-) David 2009/5/28 cryb <cbuti...@gmail.com>: > > Hello. > Although it should be obvious, the Google cluster should provide a > time and date synchronization service for all its nodes. > I've done some search on the internet and I went through appengine > docs, but I didn't find any reference that states this. > I know that this should be common sense, but I just want to make sure. > So my question is: does google cluster guarantees time and date sync > among its nodes? > I ask this because I need it for expiration primitives that won't work > properly if such a service is not in place. > Thanks. > > > > -- It is better to be wrong than to be vague. — Freeman Dyson --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
