Right. The problem is the 61244ms that it takes to start your app. How long does it normally take? Look at past warmup requests (the ones that work) and see how long they take. My guess is that the number is close to 60s. If GAE gets marginally slower, it pushes you over the edge.
As for why your app takes so long to startup, I can't begin to speculate. What does it do at startup? Do any of your frameworks do classpath scanning? Do you have a lot of big jars? Zillions of class files? Do you load data from the datastore or blobstore? You need to diagnose the warmup requests that *do* work. Sure, look at appstats - although that will only show issues if your warmup fetches data from services (ie, not the filesystem). However, you really should be able to think about it a few minutes and figure out the problem. App startup is almost 100% deterministic. There are no parameters. You know what it does. Jeff On Fri, Apr 13, 2012 at 9:55 AM, Rui Oliveira <[email protected]> wrote: > Hi Jeff >> >> Thanks for your replay. Your answer was very important for me to start >> looking to the right part of the problem. >> >> Just to clarify :"startup time" is the time to start a new instance right? >> >> How can I analyze the startup time inside the server? I'm looking to the >> appengine logs, appstats, and speedtracer, but in none of them I can find >> whats happening during the startup. >> >> If I deploy the program I'm getting this kind of logs: >> >> > 1. 012-04-13 11:33:35.889 /_ah/warmup 500 6**1244ms 0kb > 2. W2012-04-13 11:33:35.787 EXCEPTION > com.google.apphosting.api.**DeadlineExceededException: > This request (08f66682e6ba5919) started at 2012/04/13 11:32:35.741 UTC and > was still e > 3. E2012-04-13 11:33:35.790 javax.servlet.**ServletContext log: > unavailable javax.servlet.**UnavailableException: This request > (08f66682e6ba5919) started at 2012/04/13 11:32:35.741 U > 4. W2012-04-13 11:33:35.810 Failed startup of context > com.google.apphosting.utils.**jetty.**RuntimeAppEngineWebAppContext@** > 1811e2c{/,/base/data/home/**apps/s~airmenudemo/29.**358177921953 > 5. C2012-04-13 11:33:35.816 Uncaught exception from servlet > javax.servlet.**UnavailableException: Initialization failed. at > com.google.apphosting.runtime.**jetty.AppVersionHandlerMa > 6. I2012-04-13 11:33:35.819 This request caused a new process to be > started for your application, and thus caused your application code to be > loaded for the first time. This requ > 7. W2012-04-13 11:33:35.819 A problem was encountered with the process > that handled this request, causing it to exit. This is likely to cause a > new process to be used for the nex > > > >> On appstats: ( >> http://www.airmenudemo.**appspot.com/appstats/stats<http://www.airmenudemo.appspot.com/appstats/stats> >> ) >> >> (16) 2012-04-13 11:36:31.587 "GET /appstats/" 307 >> <http://www.airmenudemo.appspot.com/appstats/details?time=1334316991587>real=215ms >> api=0ms overhead=0ms (0 RPCs) >> >> (17) 2012-04-13 11:35:49.207 "GET /symbolmanifest.json" 404 >> <http://www.airmenudemo.appspot.com/appstats/details?time=1334316949207>real=609ms >> api=0ms overhead=0ms (0 RPCs) >> >> (18) 2012-04-13 11:27:25.255 "GET /_ah/warmup" 200 >> <http://www.airmenudemo.appspot.com/appstats/details?time=1334316445255>real=441ms >> api=0ms overhead=0ms (0 RPCs) >> >> As you can see after deploy the appstats don't log nothing. > > After deploy I can't even open appstats. > > After some minutes / hours everything starts ok. > > Thanks > > Rui > >> -- > 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/-/frES_he8DHYJ. > > 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.
