The problem is that the initialization of your app takes longer than 30 seconds. Pinging your app doesn't help when the app is restarted due to redeployment or maintenance, or when high traffic demands a second instance.
You should try to reduce your startup time. regards, Stephan 2010/2/17 luijar <[email protected]> > Great, all of our projects are Spring enabled lol. But I guess it's > good that we are not the only ones seeing this, hopefully it gets a > little more visibility. We have a cron job (1 min) that tries to keep > our application alive by hitting a URL, but it does not do a very good > job. It's frustrating and we don't even have access to the 500 page to > tell the user to retry or go somewhere else. > > On Feb 17, 11:21 am, oth <[email protected]> wrote: > > Yes we have seen this problem a lot. Per our tests, an application > > becomes idle after a minute of non activity. So, the unfortunate > > reality is that you need to keep your app alive by simulating activity > > on it. Or go the non Spring route. > > > > Thanks > > > > On Feb 16, 4:14 pm, luijar <[email protected]> wrote: > > > > > Hello Google App Engine forum, > > > > > We have been seeing ever since we deployed our applications > > > (currently 3 of them) that when our application instances become idle > > > (they have not been hit for x amount of seconds) subsequent requests > > > return with a 500 response. Logs show a hard deadline exceeded error > > > > > com.google.apphosting.runtime.HardDeadlineExceededError: This request > > > (32306ebe63b71ab0) started at 2010/02/12 20:39:11.984 UTC and was > > > still executing at 2010/02/12 20:39:41.225 UTC. > > > at > > > > com.google.appengine.runtime.Request.process-32306ebe63b71ab0(Request.java) > > > > > And the first line of the log message has the following : > > > > > 02-12 12:39PM 14.088 > > > > > javax.servlet.ServletContext log: Initializing Spring root > > > WebApplicationContext > > > > > Question: > > > Has anyone else seen this behavior? How long does it take for an > > > application instance to become idle? > > > > > Thanks > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" 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-java?hl=en.
