This problem normally happens "In the case of loading requests,
though, the execution time is artificially longer due to the extra
application initialization required.".
http://code.google.com/appengine/kb/java.html#Do_I_Need_To_Be_Concerned_About_High_CPU_Warnings

I am using Spring MVC version 3.0.0 RC1. I can't really do much to
reduce the "loading request" or application/framework initialization
time. And, since this is a hard limit, I think I can't do anything
other than switching to other framework or plain servlet. However, I
also see a lot of posts by other on "loading request" issue even in
plain servlet.
http://groups.google.com/group/google-appengine-java/browse_thread/thread/b57e6c4895333fa8/6ef609f7da203ab3?lnk=gst&q=overly#6ef609f7da203ab3

Can anyone confirm that Spring MVC version 2.5.6 is working fine on
GAE?



On Mar 4, 9:51 am, gholler <[email protected]> wrote:
> No, the 30 second limit is a hard limit. If a request can't finish in
> 30 seconds (or somewhat earlier), you get an exception. You then have
> an undetermined amount of time before the app engine kills your
> request and returns a 500 status code. You wouldn't happen to be using
> Spring, would you?
>
> On Mar 3, 7:57 pm, Wong <[email protected]> wrote:
>
> > Hi,
>
> > I am using Spring MVC. The application being cycled out overly
> > aggressively (sometimes less than 1 min)
>
> >http://groups.google.com/group/google-appengine-java/browse_thread/th...
>
> > I register an HttpSessionListener to listen for "loading request"
> > which takes more than 20 seconds.
>
> > Due to the long loading request/cold start time, some requests hit the
> > following  HardDeadlineExceededError exception.
>
> > Log seen in my Admin Console:
> > com.google.apphosting.runtime.HardDeadlineExceededError: This request
> > (eb11499c97029f78) started at 2010/03/03 16:41:08.062 UTC and was
> > still executing at 2010/03/03 16:41:37.260 UTC.
>
> > This request used a high amount of CPU, and was roughly 1.5 times over
> > the average request CPU limit. High CPU requests have a small quota,
> > and if you exceed this quota, your app will be temporarily disabled.
>
> > I am currently on free quota. If I enable billing and set to higher
> > CPU quota, will I be able to avoid the HardDeadlineExceededError
> > problem?

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