I'm trying to think of a solution that doesn't involve fetching data from a third party time service, but I'm drawing a blank. How did you detect the time skew in the first place?
Ikai Lan Developer Programs Engineer, Google App Engine Blog: http://googleappengine.blogspot.com Twitter: http://twitter.com/app_engine Reddit: http://www.reddit.com/r/appengine On Thu, Mar 3, 2011 at 4:57 PM, Eric Ka Ka Ng <ngk...@gmail.com> wrote: > Hi Gopal, Calvin, and Ikai, > > thx all for your sharing. Calvin, your handy script implements Gopal idea > could be very useful to many of us ;) > > Ikai, yes, later we could do more testing and sampling, and with Calvin's > script, to log the time (and delta with google time) however, this is not a > problem frequently happen and we are currently busying with some other > application dev tasks, guess it may take some time to log and analyze this > problem, and would keep you posted. just thinking what kinds of 'examples' > we could provide? (you want log? data in DS? script to produce the log / > data? ) > > > btw, how could we explain Brett's data pipelines' talk at 35:50 or i > interpret wrongly? and i believe Gopal, Calvin faced time sync issues and > thus have the idea and implementation to solve this (just me recently aware > about this problem). how much time is off did you experience? > > thx a lot! > > - eric > > On 4 March 2011 03:12, Ikai Lan (Google) <ika...@google.com> wrote: > >> Can you provide examples where the time is off by 30 minutes? This seems >> incorrect. >> >> There's definitely clock skew, but we're talking milliseconds, seconds or >> at worst, worst, worst maybe a minute or two. >> >> Ikai Lan >> Developer Programs Engineer, Google App Engine >> Blog: http://googleappengine.blogspot.com >> Twitter: http://twitter.com/app_engine >> Reddit: http://www.reddit.com/r/appengine >> >> >> >> On Thu, Mar 3, 2011 at 5:54 AM, Ng Ka Ka Eric <ngk...@gmail.com> wrote: >> >>> Hi Raymond, >>> >>> Just watched the video. Thx for pointing this reference. >>> >>> >>> I really didnt expect that the machines are not time synced (can be off >>> for 40mins?!) are there any technical difficulties to sync them? And in this >>> case, for whatever reason if we want to record the time when the request is >>> made into DS, how can we do that? >>> >>> - eric >>> >>> Sent from my iPhone >>> >>> On 2011年3月3日, at 下午6:20, "Raymond C." <windz...@gmail.com> wrote: >>> >>> According to Brett's data pipelines' talk ( >>> http://www.youtube.com/watch?v=zSDC_TU7rtc, around 35:50), its not >>> >>> -- >>> 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. >>> >>> -- >>> 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. >>> >> >> -- >> 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. >> > > -- > 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. > -- 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.
