What is the max idle instances? If a request takes 1000ms, and you get 8 at the same time, with 1 Idle instance and a 5s spin up you would have time outs with these settings.
"Safe Rule" If Max pending latency is set to less than the average request time: Idle instances must always be >= Spin-up time / Average request time If pending latency is set to less than average request time, you will ALWAYs have to spin up another instance if you get more requests simultaneously than you have instances (unless you are on a concurrent platform) -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Alex Epshteyn Sent: Monday, December 05, 2011 4:32 PM To: Google App Engine Subject: [google-appengine] Very high request latency periods on App Engine Last week I started noticing periods of very high request latency in my app lasting for many hours and even days. These are not correlated to the traffic patterns in my app, and so I assume it's an issue that affects all of app engine. Looking at the logs, it seems that some requests are spending way too much time in the pending queue, despite my app's max pending latency set to "Automatic - 200ms" (min - max). I filed an issue for this: http://code.google.com/p/googleappengine/issues/detail?id=6447 This is pretty bad. Could anyone on the team comment whether this is an App Engine problem or something wrong with my app's configuration? Thanks, Alex -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. 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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
