Thanks very much for your replay.

On Dec 1, 4:40 am, "Ikai L (Google)" <[email protected]> wrote:
> Calvin, only one instance of PersistenceManagerFactory will exist per
> application instance. The expensive part of application loading isn't the
> PersistenceManagerFactory. It's the virtual machine instance. If your
> application isn't receiving requests, we will cycle it out. The first
> request that comes in will cause us to reinstantiate a virtual machine.
> We're looking at different ways of addressing this by speeding up startup
> time.
>
>
>
> On Sat, Nov 28, 2009 at 8:03 PM, Calvin <[email protected]> wrote:
> > Hi, everyone
>
> > I just wrote simple app using java. As the guide said to instance a
> > PersistenceManagerFactory takes times, I use a very single instance in
> > my app. But it seems the app will stop if no requests in few minutes.
> > When another request comes the app will restart again and re-instance
> > PersistenceManagerFactory. It not just take a few seconds to wait app
> > response, the worse is it report critical warning as "this request
> > used a high amount of CPU and may soon exceed its quota".
>
> > Did anyone know how to fix this problem?
>
> > thanks a lot!
>
> > - Calvin Zhao
>
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>
> --
> Ikai Lan
> Developer Programs Engineer, Google App Engine

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