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From Christopher Schultz <>
Subject Re: tomcat connection pool - status and future?
Date Fri, 24 Sep 2010 17:06:15 GMT
Hash: SHA1


On 9/24/2010 11:14 AM, Jeff Hubbs wrote:
>  On 9/24/10 10:24 AM, Christopher Schultz wrote:
>> The biggest problem with C3P0 is that it's unsupported (I heard... I
>> can't find anywhere that it says the project is actually dead, but it's
>> been over 3 years since their last release, and it's clearly labeled
>> "beta"). It looks like they might be thinking about another point
>> release.
> Just jumping in here - given this and given my case of a legacy Java app
> that really needs a platform refresh in a bad way before app problems
> can be addressed, is a migration path away from c3p0 called for and if
> so, toward what?

That's tough to tell. See Mark's comments regarding DBCP, which are
positive in my view.

Also, the C3P0 folks had another semi-release back in April, so maybe
they're actually coming back. I would highly recommend talking to the
people on that team to see what their plans are.

I can see that their forum is full of complaints about deadlock, though
that may be due to misconfiguration or their applications' interference
with the library. I wouldn't be surprised to hear a lot of complaints
about DBCP deadlocking, too.

It's like buying a wireless router on Amazon: half the reviews for X say
"best router I ever had, I switched away from Y which was a POS" and
then you go look at the reviews for Y and they say the same thing with X
and Y reversed.

I would say that if things are working for you, there's no reason to
switch at all: it's not like a connection pool is a significant part of
your infrastructure (meaning that switching shouldn't be too traumatic
to your code).

- -chris
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