Spring & Hibernate transaction crash

Question

Im working on a Web project, I use Hibernate and Spring to manage transactions and access to my MySQL database. I have a problem really bizzar, I execute a query selection in a session created by Spring.

SessionFactoryUtils.getSession(sessionFactory, allowCreate);

The query is executed several times without problem, but from the 5th call the application crashes completely and I have received nothing like an exception. I tried to run the application in debug mode, and I found that all crashes at the statement level Query.list ( ).

I did the same thing using Programmatic transaction management with TransactionTemplate and everything is Ok.

Thanks in advance.

Answer 1

I had a hibernate configuration problem in pool connection size. I add this property <prop key="hibernate.connection.release_mode">after_transaction</prop> to free the connection pool after a transaction.