Dealing with MySQL connection death after 8 hours
/var/lib/tomcat6/webapps/pentaho/WEB-INF/lib
Next, we'll need to modify the hibernate settings for MySQL.? The file we will modify is called mysql5.hibernate.cfg.xml and is located in the pentaho-solutions/system/hibernate folder by default.
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You will insert the following text just after the <session-factory> tag and just before the <!-- MySQL Configuration --> comment.
<!-- hibernate c3p0 settings --> <property name="connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property> <property name="hibernate.c3p0.acquire_increment">3</property> <property name="hibernate.c3p0.idle_test_period">10</property> <property name="hibernate.c3p0.min_size">5</property> <property name="hibernate.c3p0.max_size">75</property> <property name="hibernate.c3p0.max_statements">0</property> <property name="hibernate.c3p0.timeout">25200</property> <property name="hibernate.c3p0.preferredTestQuery">select 1</property> <property name="hibernate.c3p0.testConnectionOnCheckout">true</property> <!-- hibernate cache settings --><!-- End of patch added Friday April 3, 2009 to address issues of the database connection going dead--> <property name="cache.provider_class">org.hibernate.cache.EhCacheProvider</property> <property name="hibernate.generate_statistics">true</property> <property name="hibernate.cache.use_query_cache">true</property>
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That's all there is to it.? Save the file and restart your application server and the dead connection problem should go away.
