[DBCP] - Tomcat 5

[Craig Tataryn]

Hi, I developed a webapp using Tomcat 4.1.29 with DBCP.  The client deploy 
to Tomcat 5, and have been having connection problems.  We are running 
against Sybase Adaptive Server Anywhere, and it appears that after the 
application has been running for a while we just start getting "connection 
refused" inside or outside our application whenever we try to get a 
connection to the DB.

I was wondering, I noticed that Tomcat 5.0 ships with the DBCP jar, because 
I was developing using 4.1.29, I had to place that jar in my WEB-INF/lib.  
Would this cause a problem, is it possible my webapp is using Tomcat's DBCP 
instance to handle the connection pool, and thus when I reload my webapp, 
the previous instance of the webapp's connecitons are just being zombied?

What is the default number of connections that DBCP will try to secure?  I'm 
thinking that perhaps the pool is trying to grab more connections than we 
have licenses for.  Although you would think I would get an appropriate 
error message coming back which states that the connection limit has been 
exceeded.

In a webapp situation, how do you ensure your connection pool is destroyed 
when your webapp is recycled or stopped?

Any help/suggestions would be greatly appreciated.

Thanks,

Craig W. Tataryn

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