Hi Armin,
I'm using OJB 1.0.rc4.
Looking though the code I see that in one instance the following code is
used:
...
Transaction tx = TxManagerFactory.instance().getTransaction();
PBCapsule capsule = new PBCapsule(((OJB)
SessionFactory.getInstance().getOdmg()).getCurrentPBKey(), tx);
PersistenceBroker broker = getPBCapsule().getBroker();
result = (ManageableCollection) broker.getCollectionByQuery(query);
return result;
...
I believe this might be causing the broker-pool to become exhausted. I have
modified this to call capsule.destroy() before returning and will test this.
Many thanks for your help.
Carlos.
Armin Waibel wrote:
> Hi Carlos,
>
> seems the broker-pool is exhausted.
>
> OJB version?
>
> Do you mix PB-api and ODMG-api in your code?
> I don't mean
> > PersistenceBroker broker = ((HasBroker) tx).getBroker();
> that's ok. I mean direct use of PersistenceBrokerFactory
> to create PB instances?
>
> Normally the odmg-api close all used PB instances
> after use.
>
> Or, you have to many concurrent threads running on the server.
> But default pool size is 100.
> So I think it's not as simple as that ;-)
>
> regards,
> Armin
>
> Boyes, Carl wrote:
> > Hi,
> >
> > Our OJB based application has just gone into system test and we are
> > intermittently experiencing the below error when calling:
> > PersistenceBroker broker = ((HasBroker) tx).getBroker();
> >
> > Can anyone let me know what I am doing wrong? Is there
> another way to get
> > the broker from a transaction? Should I be calling any
> specific clean up
> > method?
> >
> > As always any help would be much appreciated.
> >
> > ----
> > [org.apache.ojb.odmg.TransactionImpl] ERROR: Cannot obtain
> PersistenceBroker
> > from PersistenceBrokerFactory, found PBKey was
> org.apache.ojb.broker.PBKey:
> > jcdAlias=Xdeals, user=gemini_object, password=*****
> > Borrow broker from pool failed
> > java.util.NoSuchElementException
> > at
> >
> org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObje
> ct(GenericKeye
> > dObjectPool.java:758)
> > at
> >
> org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl
> .createPersist
> > enceBroker(PersistenceBrokerFactoryDefaultImpl.java:233)
> > at
> >
> org.apache.ojb.broker.PersistenceBrokerFactory.createPersisten
> ceBroker(Persi
> > stenceBrokerFactory.java:131)
> > at
> >
> org.apache.ojb.odmg.TransactionImpl.getBroker(TransactionImpl.
> java:1201)
> > ----
> >
> > Carlos.
> >
> >
> >
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