I have a message driven bean which is processing a transaction which cam sometimes run for hours. The main goal I am trying to acheive is to increase the transaction timeout from the default 300 seconds (5 mins) to somehere in hours. The code below demonstrates the number of things I have tried to acheive this, but I have been unsuccessful in every attempt. I am starting to think there may be a bug in one of the transaction annotations. Please help...thanks!
- 1. Tried setting the context from setMessageDrivenContext which is called by the container. I then got the user transaction and tried to set that timeout to > 5 mins but that did not affect the 5 min default trans. timeout. (Please see commented code)
- 2. Tried setting the @TransactionTimeout annotation to a value > 500 but that seems to do nothing...bug?
- 3. Any other suggestions?
@TransactionManagement(TransactionManagementType.BEAN)
@TransactionAttribute(TransactionAttributeType.REQUIRED)
@TransactionTimeout(value=800)
public class MDBDataLoadTask implements MessageListener,MessageDrivenBean {
private MessageDrivenContext ctx;
public void onMessage(Message msg)
{
/*
UserTransaction aUT = ctx.getUserTransaction();
aUT.begin();
aUT.setTransactionTimeout(360);
*/
try
{
//Perform a task that will take about this long to run
Thread.sleep(365000);
//aUT.commit();
}
catch (Exception e)
{
/*try{
aUT.setRollbackOnly();}
catch(SystemException se){System.out.println(se.toString());}*/
}
}
@Resource
public void setMessageDrivenContext(MessageDrivenContext ctx) { this.ctx = ctx; }
public void ejbRemove() {ctx=null;}
}