In the General Options section of the Properties tab, configure the following session properties:
Select Source as the commit type to extract data in real time and maintain transactional consistency for JMS targets.
Optionally, edit the commit interval.
Select a recovery strategy.
To enable message recovery, select Resume from Last Checkpoint.
If you enable message recovery, you can configure a value for the recovery cache folder from the Properties settings of the Sources node section of the Mapping tab. Or, use the default cache folder $PMCacheDir\.