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From "Pramodh Peddi" <>
Subject RE: [DBCP] removeAbandoned and removeAbandonedTimeout feature
Date Mon, 27 Jun 2005 22:34:34 GMT
Hi Dirk/All,

I posted the junit test, which I found to have problems related to
*abandon* methods. The only thing to do is define a query in
testDoDBPerformanceAnalysis to suit your database.

I am also finding the problem of initialSize (all the initial
connections become active). When I put initialSize to 12, getNumActive
returns 13 when I open a connection. The test should show/reveal this
problem too. Please let me know if you do not understand the junit



-----Original Message-----
From: Dirk Verbeeck [] 
Sent: Monday, June 27, 2005 2:20 AM
To: Jakarta Commons Users List
Subject: Re: [DBCP] removeAbandoned and removeAbandonedTimeout feature

Please post a junit test showing the problem with the "abandoned" 
feature and the factory.

FYI: Tomcat calls BasicDataSourceFactory.getObjectInstance(...) and this

method calls BasicDataSourceFactory.createDataSource(...) so there isn't

a large difference in initialization code.

The reason why abandoned* methods are deprecated are explained in the 

-- Dirk

Pramodh Peddi wrote:
> All,
> The feature (provided by removeAbandoned and removeAbandonedTimeout)
> used to work when I used Tomcat's JNDI to create the DataSource. Now,
> started using BasicDataSourceFactory.createDataSource(Properties) to
> create the DataSource. Ever since I made this change, this feature
> stopped working for me. One more difference is, the application is not
> in the context of Tomcat now, it's a standalone application. Not sure
> this makes a difference as the tool is claimed to work both in and out
> of Tomcat.
> I realize this feature is deprecated in 1.2 and might be removed in
> future releases. I am not really sure why this feature is deprecated
> I (and hoping others) found this a very very very useful feature. Even
> official dbcp documentation
> s-howto.html) advices to use this to close poorly managed connections.
> Is there any replacement for this set of parameters? If this feature
> gone (and if nothing replaces this), I do not think there is any way
> the dbcp tool to close an open connection, if not closed by the
> program/application.
> Any input will be greatly appreciated,
> Thanks,
> Pramodh.

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