Win a copy of The Way of the Web Tester: A Beginner's Guide to Automating Tests this week in the Testing forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

JDBCConnectionException: Cannot open connection

Kris Reid
Ranch Hand
Posts: 247
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Sometimes my application is throwing JDBCConnectionException: Cannot open connection
I can't for the life of me work out why.

It is a web app running on tomcat and using hibernate.
I'm using a session filter that starts the transaction then processes the users action then closes the transaction.
So I don't think that connections are getting left open.

Do I have C3P0 configured properly?
<property name="hibernate.c3p0.acquire_increment">3</property>
<property name="hibernate.c3p0.idle_test_period">14400</property> <!-- seconds -->
<property name="hibernate.c3p0.timeout">25200</property> <!-- seconds -->
<property name="hibernate.c3p0.max_size">100</property>
<property name="hibernate.c3p0.min_size">10</property>
<property name="hibernate.c3p0.max_statements">0</property>

This is the game Mob Warrior if you're interested
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic