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From Achim Westermann <>
Subject Re: Performance of commons-pool and commons-dbcp
Date Mon, 15 Sep 2008 08:09:07 GMT
I do think that I experienced locking issues with web applications that 
rely on commons pool / dbcp. I just have open a page and hold down F5 
with firefox and get in the application server log sth. like:

Sep 12, 2008 3:59:49 PM org.apache.catalina.core.ApplicationDispatcher 
SEVERE: Servlet.service() for servlet jsp threw exception
java.util.NoSuchElementException: Timeout waiting for idle object
	at org.apache.commons.dbcp.PoolingDriver.connect(
	at java.sql.DriverManager.getConnection(Unknown Source)
	at java.sql.DriverManager.getConnection(Unknown Source)

However I never spent time trying to optimize pool configuration.

kind regards,


Philip Arad schrieb:
> Hi
> I would like to know if anyone has the experience of using commons-pool 
> and commons-dbcp
> with a heavy loaded server, that have to serve more then 1000,2000 or 
> more users at the same
> time.
> Philip
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