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From "Gustavo Saramago" <we...@ig.com.br>
Subject Re: JDBC Connection Pool Theory ??
Date Fri, 21 Sep 2001 11:23:45 GMT
It's hard to imagine a real world application without database access. The
JDBC spec delegate the responsability for connection pool implementation to
th JDBC driver vendor. This result in proprietary implementations of pools
that reduce code portability.

General solutions like Poolman are good choices. It's a light piece of code
as Jon said, but I have saw people having problems using it with Tomcat. Our
lives would be mutch easier if the JDBC spec had defined a standard
connection pool.

Why Tomcat do not implement a connection pool? Nothing aganist Poolman, but
standards are welcome.

----- Original Message -----
From: "Jon Shoberg" <jshoberg@cbd.net>
To: <tomcat-user@jakarta.apache.org>
Sent: Friday, September 21, 2001 12:48 AM
Subject: RE: JDBC Connection Pool Theory ??


>
>
> One of the issues would be someting that has been crossing the lists
> recently.  Few people have posted that poolman is broken under TC4.0.
I'll
> have to try it myself and see. However, I like to do my own plumbing :)
>
> Jon
>
> -----Original Message-----
> From: Vladimir Grishchenko [mailto:vladgri@hotmail.com]
> Sent: Thursday, September 20, 2001 10:32 PM
> To: tomcat-user@jakarta.apache.org
> Subject: Re: JDBC Connection Pool Theory ??
>
>
> "Professional Java server programming " from WROX had a chapter about it,
as
> far as I remember. I can't call it a "comprehensive study", but it had
some
> meaningful explanations.
>
> What's wrong with poolman btw? IMHO it is as simple as it gets, your
> application doesn't even know it deals with pooled connections. Portable?
As
> portable as Java itself.
>
>  My philosophy on such things is take it if it's available and concentrate
> on your application domain issues and not the plumbing (plumbing in good
> sense here...).
>
> --V.
>
>
> ----- Original Message -----
> From: "Jon Shoberg" <jshoberg@cbd.net>
> To: <tomcat-user@jakarta.apache.org>
> Sent: Thursday, September 20, 2001 7:37 PM
> Subject: JDBC Connection Pool Theory ??
>
>
> >
> > Can anyone suggest or point to readings on JDBC connection pool theory?
> > Something that covers how a pool is implemented, best case / worst case
> > scenarios, tips and traps.
> >
> > My next web application is looking to be very database (mysql)
intensive.
> > I would like a pooling mechanism that is VERY simple to use, VERY light,
> low
> > overhead, and portable.  Having looked at packages such as poolman, I
> > decided I need to learn a bit more about JDBC and pooling in general.
Any
> > thoughts ?
> >
> > Jon
> >
> >
>


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