Hi Nathan, On Fri, Apr 27, 2012 at 1:17 AM, Nathan Skone <nsk...@headsprout.com> wrote: > Takashi, > > The latency spike stopped around 11:30pm PST. Can you tell what caused the > high latency, and if it is likely to occur again in the future? Occasional > spikes such as what happened yesterday would make the Google App Engine much > less useful to my company.
First, are you really sure that the cause is in our side? Do you have any appstats results which show that any of your RPC calls don't take longer time than usual? If your RPCs take time, there are several things you can do to mitigate this. Do you set any deadline on your datastore calls? If no, you may want to set it appropriately, and when hitting the deadline, you can return a failure to your web clients and tell them to retry. Are you using urlfetch service to retrieve external resources? If so, sometimes those external resources can be the culprits. If you entirely rely your app's performance on the memcache service, which has no SLA, your app might see high latency when the memcache is flushed. In this particular case, as far as I know, there was no significant system issue around that time, so I don't think this was a system wide issue, and in such cases, please understand that we can not offer reports like that every time to every customers who experienced high latency(again, premier customers are different, at least to my knowledge). > I understand there is no SLA support channel for non-premium accounts. Does > that mean that us paying customers that cannot justify the extra $500 > monthly fee cannot depend on any support from Google when experiencing > problems? No, not at all. There are still several options. You can use a new feature for reporting production issues in your admin console. You should be able to see a link 'Report Production Issue' on the right top side of your admin console, where you can report a production issue alongside of a screenshot with some highlights and privacy masks. That way, now you can report issues to us privately without revealing your app-id. Of course, you can also post here, then we offer a best effort support, like this ;) -- Takashi > > Thank you for your response, > > Nathan Skone > DYMO / Mimio - A Newell Rubbermaid Company > > On Wednesday, April 25, 2012 11:58:27 PM UTC-7, Takashi Matsuo (Google) > wrote: >> >> Hi Nathan, >> >> I think it's OK now. Are you still seeing this? >> >> BTW, this list is not a support channel with any kind of SLA. Now >> we're offering premier support for that type of demand. >> For more details about our premier support, please see: >> https://developers.google.com/appengine/docs/premier/ >> >> Regards, >> >> -- Takashi >> >> On Thu, Apr 26, 2012 at 2:43 AM, Nathan Skone <nsk...@headsprout.com> >> wrote: >> > Application: hs-hbo >> > Datastore: High Replication >> > Normal latencies: 50ms-200ms >> > Today's latencies: 5000ms-10000ms >> > Idle Instances: ( Automatic – Automatic ) >> > Pending Latency: ( Automatic – Automatic ) >> > >> > Dear Appengine Team, >> > >> > This morning the latency of my application saw a sudden spike that has >> > made >> > it unusable for my company's purposes. How can I get assistance with >> > this >> > problem? This is an urgent issue that is directly effecting our >> > customers. >> > >> > Thank you, >> > Nathan Skone >> > DYMO / Mimio - A Newell Rubbermaid Company >> > >> > -- >> > 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/-/O-GXusXXlzsJ. >> > 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. >> >> >> >> -- >> Takashi Matsuo | Developer Advocate | tmat...@google.com > > -- > 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/-/omv0xvTjHnwJ. > > 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. -- Takashi Matsuo | Developer Advocate | tmat...@google.com -- 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.
