Based on one of your recent posts, it seems like multiple
PersistenceManagerFactory instances are being created by different
classloaders. Since this is an expensive operation, this could explain why
you're experiencing such slow performance. Did you follow Toby's suggestion
in the last post?
-----
1) Are you maybe loading that singleton class in different classloaders?
Try logging the classloader object reference that tries to create the
PersistenceManagerFactory. You can add a static initializer ABOVE
pmfInstance.
static {
logger.log(Level.SEVERE, "Loading PMF in " + PMF.class.getClassLoader()");
}
-----
- Jason
On Thu, Sep 3, 2009 at 10:03 AM, Vik <[email protected]> wrote:
> Hie
> Strange to hear that if it is creating PMF again....
>
> Should it do it just once when i logged in? In the logging process I do get
> an instance of PMF. So, why it is doing that again?
> Any advise what may be going wrong here?
>
>
> Thankx and Regards
>
> Vik
> Founder
> www.sakshum.com
> www.sakshum.blogspot.com
>
>
> On Thu, Sep 3, 2009 at 10:25 PM, datanucleus <[email protected]>wrote:
>
>>
>> > 17. I09-03 09:46AM 31.994
>> >
>> > vik.sakshum.sakshumweb.jsp.model.jdo.PMF <clinit>: Loading PMF in
>> > com.google.apphosting.runtime.security.userclassloa...@8fcc7b
>> >
>> > 18. I09-03 09:46AM 41.622
>>
>> Don't you think it's a strange way to "benchmark" things by including
>> known one-off operations like creating a PMF ?
>> Personally that ought to be included in application startup timings,
>> rather than "time taken to read 200 records".
>>
>>
>>
>
> >
>
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