hie
in two different requests.
Thankx and Regards
Vik
Founder
www.sakshum.com
www.sakshum.blogspot.com
On Thu, Sep 17, 2009 at 8:16 PM, Don Schwarz <schwa...@google.com> wrote:
> To be clear, you're getting these two log statements in the same request?
> Or subsequent requests?
>
>
> On Thu, Sep 17, 2009 at 1:48 AM, Vik <vik....@gmail.com> wrote:
>
>> hie
>> any updates on this please?
>>
>> yeah I did what you suggested by putting a log statement..
>>
>> and what I get are two different values from this block
>>
>> At first time of app startup
>> vik.sakshum.sakshumweb.jsp.model.jdo.PMF <clinit>: Loading PMF in
>> com.google.apphosting.runtime.security.userclassloa...@1f7cdc7
>>
>> and in another flow
>> vik.sakshum.sakshumweb.jsp.model.jdo.PMF <clinit>: Loading PMF in
>> com.google.apphosting.runtime.security.userclassloa...@1e6f0ef
>>
>>
>> So, it means it is trying to load it in two different class loaders. So,
>> how should I fix it?
>>
>> Thankx and Regards
>>
>> Vik
>> Founder
>> www.sakshum.com
>> www.sakshum.blogspot.com
>>
>>
>> On Thu, Sep 3, 2009 at 9:01 PM, Vik <vik....@gmail.com> wrote:
>>
>>> Hie
>>> Thankx for taking time...
>>>
>>> I just adding the static block u mentioned in point 1 just after the
>>> static block i have (in the above mail)
>>>
>>> I am sorry I did not get your point 2.
>>> Right now what I do is: every time a request goes to a particular servlet
>>> depending upon application flow and i call
>>> PersistentManager pm = PMF.get().getPersistenceManager();
>>>
>>> and then do jdo stuff with GAE.
>>>
>>> So, i m not checking any kind of duplicate or anything. I was hoping the
>>> PMF class getInstance which is implemented as a singleton pattern
>>> takes care of all.
>>>
>>> Please guide.. my app right now sucks coz of this not intialized error
>>> for PMF.
>>>
>>>
>>> Thankx and Regards
>>>
>>> Vik
>>> Founder
>>> www.sakshum.com
>>> www.sakshum.blogspot.com
>>>
>>>
>>> On Wed, Sep 2, 2009 at 8:42 PM, Toby Reyelts <to...@google.com> wrote:
>>>
>>>> Thanks for the code. I have three suggestions (mostly from my previous
>>>> 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()");
>>>> }
>>>>
>>>> 2) Patch the datanucleus plugin code that makes the check for duplicate
>>>> PMF creations to log a stacktrace first thing every time it's called. Then
>>>> you'll know for sure which code paths are causing this to happen.
>>>>
>>>> 3) Disable the check if you're sure you're only creating the PMF a small
>>>> number of times.
>>>>
>>>> On Wed, Sep 2, 2009 at 2:45 AM, Vik <vik....@gmail.com> wrote:
>>>>
>>>>> Hie
>>>>> here is the code I am using:
>>>>> package vik.sakshum.sakshumweb.jsp.model.jdo;
>>>>>
>>>>> import javax.jdo.JDOHelper;
>>>>> import javax.jdo.PersistenceManagerFactory;
>>>>>
>>>>> import org.compass.core.Compass;
>>>>> import org.compass.core.config.CompassConfiguration;
>>>>> import org.compass.core.config.CompassEnvironment;
>>>>> import org.compass.gps.CompassGps;
>>>>> import org.compass.gps.device.jdo.Jdo2GpsDevice;
>>>>> import org.compass.gps.impl.SingleCompassGps;
>>>>>
>>>>> public final class PMF {
>>>>> private static final PersistenceManagerFactory pmfInstance =
>>>>>
>>>>> JDOHelper.getPersistenceManagerFactory("transactions-optional");
>>>>>
>>>>> private static final Compass compass;
>>>>> private static final CompassGps compassGps;
>>>>>
>>>>> static {
>>>>> compass = new CompassConfiguration().setConnection("gae://index")
>>>>> .setSetting(CompassEnvironment.ExecutorManager.EXECUTOR_MANAGER_TYPE,
>>>>> "disabled")
>>>>> .addScan("vik.sakshum.sakshumweb.jsp.model.jdo")
>>>>> .buildCompass();
>>>>>
>>>>> compassGps = new SingleCompassGps(compass);
>>>>> compassGps.addGpsDevice(new Jdo2GpsDevice("appenine",
>>>>> pmfInstance));
>>>>> compassGps.start();
>>>>>
>>>>> compassGps.index();
>>>>>
>>>>> }
>>>>>
>>>>> private PMF() {}
>>>>>
>>>>> public static PersistenceManagerFactory get() {
>>>>> return pmfInstance;
>>>>> }
>>>>>
>>>>> public static Compass getCompass(){
>>>>> return compass;
>>>>> }
>>>>> }
>>>>>
>>>>> any clues?
>>>>>
>>>>> Thankx and Regards
>>>>>
>>>>> Vik
>>>>> Founder
>>>>> www.sakshum.com
>>>>> www.sakshum.blogspot.com
>>>>>
>>>>>
>>>>> On Wed, Sep 2, 2009 at 12:34 AM, Toby Reyelts <to...@google.com>wrote:
>>>>>
>>>>>> Vik,
>>>>>>
>>>>>> Do you have some sample code to reproduce this? By default, we throw
>>>>>> an exception if you try to create more than one
>>>>>> PersistenceManagerFactory.
>>>>>> Are you using a singleton class to prevent more than one from being
>>>>>> created?
>>>>>> If so, are you maybe loading that singleton class in different
>>>>>> classloaders?
>>>>>> (Try logging the classloader object reference that tries to create the
>>>>>> PersistenceManagerFactory).
>>>>>>
>>>>>> Lastly, you can disable the exception if you want (details should be
>>>>>> in the exception message), but it will be a performance problem for you
>>>>>> if
>>>>>> you're creating more than a few PersistenceManagerFactory's.
>>>>>>
>>>>>>
>>>>>> On Tue, Sep 1, 2009 at 1:51 PM, Vik <vik....@gmail.com> wrote:
>>>>>>
>>>>>>> anyone any updates on this please?
>>>>>>> Thankx and Regards
>>>>>>>
>>>>>>> Vik
>>>>>>> Founder
>>>>>>> www.sakshum.com
>>>>>>> www.sakshum.blogspot.com
>>>>>>>
>>>>>>>
>>>>>>> On Sun, Aug 30, 2009 at 8:51 PM, Vik <vik....@gmail.com> wrote:
>>>>>>>
>>>>>>>> Hie
>>>>>>>> Any one using compass on his GAE app?
>>>>>>>>
>>>>>>>> I am frequently getting error cannot initialize PMF where there is
>>>>>>>> static code to initialize compass apis.
>>>>>>>> Any idea how to resolve?
>>>>>>>>
>>>>>>>> Thankx and Regards
>>>>>>>>
>>>>>>>> Vik
>>>>>>>> Founder
>>>>>>>> www.sakshum.com
>>>>>>>> www.sakshum.blogspot.com
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
>>
>>
>>
>
> >
>
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