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Kees Jan,

On 8/7/2009 12:44 PM, Kees Jan Koster wrote:
> I have to restart Tomcat regularly because it exhausted my MySQL
> connections. Show processlist confirms the problem.
> 
> I use Hibernate. Do you?

No, I just use straight JDBC in all my code.

I abandoned OR mappers a long time ago because they forced me to deal
with data from tables individually. Since MySQL didn't have VIEWs until
recently, and I've been primarily using only MySQL for development, I
just write all my SQL queries myself these days.

> I'll dig deeper later when I have more time.

I wonder if you have ResultSet or Statement objects that aren't closed.
Next time you do a lot of restarts, run jmap to see if there are any
"live" JDBC objects still laying around (other than java.sql.Connection,
of course).

- -chris
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