TransactionTimeout Exception in JPD

Question

Hi,
I wrote one WLI Process(jpd). It contains one explicit transaction, with in that one DB Control method (select query in MS SQL Server), business logic and one more DB Control method (insert query in Oracle). For each node exception block is there.
If MS SQL Server performance is low, then jpd is hanging in the first DB Control method. And in console only TransactionTimeout Warning is displaying nothing else. Process is hanging the control is not going to exception block.
Can you tell me anybody why this is happening.
thanks
Prathap P
Message was edited by:
shettypaluru

Answer 1

Hi Prathap
Please note that WLI documentation specifies that :
"<b>Note:</b> If an exception occurs within a transaction block, the transaction is rolled back and the exception handler is called at a later time. However, if the business process is marked <b>freeze on failure</b>, instead of calling the exception handler later, the process freezes and the exception handler is never called. In this case, when freeze on failure is configured inside a transaction block, you should either not use a transaction block or include global transaction logic within your transaction blocks."
link: http://e-docs.bea.com/workshop/docs81/doc/en/core/index.html
One more useful link on exception handling :
http://support.bea.com/application_content/product_portlets/support_patterns/wli/WLI_HandlingExceptionsPattern.html#Handling_exceptions_in_transaction_blocks
So the problem can be that you've specified your process to be freeze-on-failure and your EH block must have been outside your transaction block.
Regards
Tarun