Hibernate, C3P0, Mysql — Broken Pipe

Question

MySQL seems to have an 8 hour time out on its connections. I\'m running multiple WARs in Tomcat utilizing Hibernate for ORM. After 8 hours (i.e. overnight), I get broken pip

Answer 1

There are two things going on here. You should read this article for more details, but the take-aways are:

1. You can adjust the MySQL wait_timeout setting to something larger than 8 hours, if desired.
2. The Hibernate settings should include "hibernate." before the "c3p0", e.g. hibernate.c3p0.idle_test_period instead of just c3p0.idle_test_period