Hi Robert, I try to explain better:
Our application has 16 instances assigned by appengine automatically and three of them are "always on". It doesn't have many requests, in fact, the time between them is large enough to appengine undeploy the application. So appengine is starting the application over and over. Our application is java based and we're using spring MVC, Security, IoC and AOP, we've optimized the startup of it to reduce this time, more or less the startup time is not exceed more than 15 seconds. I've attached screenshot to show the instances's status. Thanks for your interesting. Eduardo. 2011/5/3 Robert Kluin <[email protected]> > Hi Eduardo, > Perhaps you could explain "we've detected that many of them when > receive a request, it has to start the application again" more > precisely. It is rather hard to give any advise other than make your > app startup faster based on the information you've provided (for me at > least). > > Also, if you don't get any good insights here, try searching / > asking on the google-appengine-java group. > > > Robert > > > > > > > On Tue, May 3, 2011 at 09:59, Eduardo Perrino <[email protected]> > wrote: > > Hi!! > > > > We have problems with the instance feature of appengine. Today we have > > got 16 instances, and we've detected that many of them when receive a > > request, it has to start the application again. So our application > > consumes a lot of cpu because our startup process is a little heavy. > > > > To solve this situation we've enabled always on feature, and the > > problem becomes bigger, because always on instances has to start the > > application too. > > > > We don't understand this behavior and we need help to solve this. > > Otherwise we'll have to stop using appengine as a valid JAVA > > development platform because stop and start in every moment the > > application is unacceptable into this enviroment. > > > > > > Eduardo > > > > -- > > 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. > > -- 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.
