Why does Hibernate/JDBC/MySQL drop connections after a day or so?

Question

I have several server processes that once in a while respond to messages from the clients and perform read-only transactions.

After about a few days that the servers

Answer 1

I changed my hibernate configuration file by adding thoses lines and it works for now:

    true
    true
    true

I think that using c3p0 pool is better and recomanded but this solution is working for now and don't present ant problem.
I let the Tomcat On for 24hours and the connection wasn't lost .
Please try it .