How to log the start and the completion of DB transactions in Hibernate

Question

sql_show = true

this property in hibernate prints the sql that is run, but i want to see the begin transaction and complete transaction statements as well so that i can track the transaction duration and see the query run in which transaction.

googling reveals that

log4j.logger.org.hibernate.SQL = DEBUG, defaultAppender
log4j.logger.org.hibernate.type = DEBUG, defaultAppender
log4j.logger.org.hibernate.transaction=DEBUG, defaultAppender

should show you the transaction level data as well. But it doesnt.

Investigating more i looked into hibernate code and found a class name

org.hibernate.ejb.TransactionImpl

this class has the begin and complete method but this method does not log any thing.

Any advice how to see the transaction level info in hibernate ?
I am using hibernate 2.2

Answer 1

For Hibernate 5

• For SLF4J logging:

  <logger name="org.hibernate.engine.transaction.internal.TransactionImpl" level="debug"/>
  

• For Log4j:

   <logger name="org.hibernate.engine.transaction.internal.TransactionImpl">
        <level value="DEBUG"/>
   </logger>
  

For Hibernate 4

You need to set the logging threshold to DEBUG for the following classes:

1. For JDBC transactions (e.g. RESOURCE_LOCAL)

   • For SLF4J logging:

     <logger name="org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction" level="debug"/>
     

   • For Log4j:

     <logger name="org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction">
        <level value="DEBUG"/>
     </logger>
     

2. For JTA transactions

   • For SLF4J logging:

     <logger name="org.hibernate.engine.transaction.internal.jta.JtaTransaction" level="debug"/>
     

   • For Log4j:

     <logger name="org.hibernate.engine.transaction.internal.jta.JtaTransaction">
        <level value="DEBUG"/>
     </logger>
     

It's better to activate the DEBUG level for as few classes as possible because otherwise, your logs size will increase dramatically.