If you guys think this may be because of high memcache API latency, please star this issue: http://code.google.com/p/googleappengine/issues/detail?id=7554
Although it appears Google is being stubborn about it and has marked this issue "WontFix", blaming it all on Master/Slave datastore. An issue that lasts this long can't be simply blamed on M/S. On Tue, May 22, 2012 at 11:41 PM, Daniel <danielkra...@gmail.com> wrote: > BTW, here's my milliseconds per request chart. The problems started about > 3 days ago and the data is dramatic.. here's a 7 day graph > > > <https://lh3.googleusercontent.com/-AuVmd45bJwY/T7xqVl-khiI/AAAAAAAAAzc/yOxaoYxWP9s/s1600/skywords.jpg> > > > On Tuesday, May 22, 2012 9:27:05 PM UTC-7, Daniel wrote: >> >> For the last 2-3 days I'm seeing the same thing. I've gotten several >> mails from unhappy users that my game server is too slow.. I don't normally >> have complaints like this. I'm also seeing Deadline Exceeded errors which >> I don't normally see. In addition my server costs are over double as >> well, probably for the same reason. >> >> You're not alone.. do you have any leads from Google on this? >> >> Daniel >> >> On Tuesday, May 22, 2012 8:25:44 PM UTC-7, Eric Ka Ka Ng wrote: >>> >>> from around last 12 hours, we see an exceptionally high latency on some >>> of our gae apps. before requests on average takes 200ms-1000ms. now it can >>> takes 2000ms - 5000ms. I try to measure the time as local client. like make >>> 10 requests, 1-2 times the latency is normal <1s, half of the time is like >>> 2s-5s, sometimes it even takes 10-20s!! >>> >>> as a result, it also doubles the number of instances started by GAE, and >>> so as the frontend cost. >>> >>> does anyone observe similar problem recently, or it's only me? is it >>> google's infrastructure prb, or anything i can do? if it's google's >>> infrastructure prb, i dont think it makes sense to transform such bad user >>> experiences (high latency) into doubling our hosting cost.... >>> >>> - eric >>> >> -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-appengine/-/MJCF02agu5oJ. > > 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.
