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List:       ojb-user
Subject:    Re: How to monitoring connecton pool?
From:       Tino_Schöllhorn
Date:       2004-10-21 7:51:44
Message-ID: cl7pqj$9e0$1 () sea ! gmane ! org
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Hi,

I don't know how to get this information. But you could quite easily 
configure the connection-managers as such that they are automatically 
closing "forgotten" persistence-broker instances and their connections.

Please see: http://db.apache.org/ojb/docu/guides/connection.html


Rodrigo G. Tavares de Souza wrote:
> Hi,
> 
> I had had problems with connection pool, cause there are someone 
> broker in the application that I'm not closing, after some access the 
> max  number of connections exceed and I get an exception from Tomcat.
> Now I'm looking how to monitoring the activity in the pool to find 
> where I've forgotten to close the broker.
> If are someone there who know how can I borrow this information from 
> OJB, gonna be a greatest aid. :)
> 
> I'm trying to get these informations: getNumActive(), getNumIdle(),  
> getMaxIdle(),  getMaxActive(), getMaxWait().
> 
> Thanks.
> Rodrigo
> 
> -----------------------------------------------------
> Follow the exception returned by Tomcat
> -----------------------------------------------------
> java.util.NoSuchElementException
> at 
> org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:803) \
>  
> at 
> org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl.createPersistenceBroker(PersistenceBrokerFactoryDefaultImpl.java:99) \
>  
> at 
> org.apache.ojb.broker.core.PersistenceBrokerFactoryBaseImpl.defaultPersistenceBroker(PersistenceBrokerFactoryBaseImpl.java:158) \
>  
> at 
> org.apache.ojb.broker.PersistenceBrokerFactory.defaultPersistenceBroker(PersistenceBrokerFactory.java:65) \
>  
> ....
> Caused by: java.util.NoSuchElementException
> at 
> org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:803) \
>  
> at 
> org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl.createPersistenceBroker(PersistenceBrokerFactoryDefaultImpl.java:99) \
>  


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