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From Borut Bolčina <>
Subject Re: MySQL error - connection reset
Date Thu, 28 Oct 2010 13:23:10 GMT

if you are using, do you have something like

cayenne.dbcp.validationQuery="SELECT 1 FROM one_of_your_table"


2010/10/28 Bruno René Santos <>

>   Hello all,
> Yesterday I left an application running with cayenne on a tomcat server
> (left the browser opened), using JNDI, and when I came today and tried to
> use it again I got the error in attachment. It seems mysql resetted the
> connection with cayenne during the night. One of the things that made me
> choose Cayenne over Hibernate was under the assumption that connections were
> made with the database server only when needed (on performQuery or
> commitChanges) but on this situation it seemed that the connection was
> permanently opened and cayenne tried to use it again (like hibernate).
> Perhaps I am doing something wrong and so I needed some clarification on
> this issue.
> Thank you
> Bruno Santos

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