hi Ikai does appengine suffer from this anomaly even when "billing" is enabled? my application doesn't receive much traffic, but i still need it to be "ready". I don't mind enabling "billing" and don't even mind any $ value (as a consequence), but I would like to know if the problem will go away...
Does anybody else know the answer for this question? Thanks On Nov 30 2009, 11:38 am, "Ikai L (Google)" <ika...@google.com> wrote: > Yes. This is an issue we are working on. Basically, what happens is that > instances of your application are elastic and loaded up upon demand. As your > application grows, we will grow with you, but one of the consequences of > this is that if your application is not receiving many requests, we may > cycle you out to allocate more instances for an application with higher > resource requirements. > > We discourage running cron jobs to reduce startup time because ultimately, > this will result in more aggressive cycling for all of our users. We're > looking at several techniques to speed up Java application startup time. > It's also been suggested that we should look at a billing enabled option for > keeping a certain number of instances warm at all times. > > On Sun, Nov 29, 2009 at 11:22 PM, Jeffrey Goetsch <jeffg....@gmail.com>wrote: > > > > > > > I have noticed that the first request to a server instance has really high > > CPU usage (7000+ milliseconds). After the server is up, the same request > > takes only 20 milliseconds. I am not using Spring or any other framework. > > It appears that the time is used during the first execute call on a > > Datastore query. > > > Is this a normal behavior? > > > I have a cron job that I was running every 2 minutes, but that alone was > > using 15% of my free quota. I have moved the cron to every minute, and I'm > > seeing huge improvement on performance and quota. The cron used to take > > 7000+ ms and now I am getting 20ms. Does this mean you should make sure > > you have at least on cron running every minute? > > > Thanks, > > Jeffrey > > > -- > > 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 > > google-appengine-j...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2B > > unsubscr...@googlegroups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine-java?hl=en. > > -- > Ikai Lan > Developer Programs Engineer, Google App Engine
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