The image admin037.gif shows an example of an in-doubt distributed transaction. In this example, the following occurs:
SALES.EXAMPLE.COM is the global coordinator and is in the prepared state.
WAREHOUSE.EXAMPLE.COM is the database server and is in the prepared state.
HQ.EXAMPLE.COM is the commit point site and has issued the commit request.
The failure occurs during the commit phase when a communication break between HQ.EXAMPLE.COM and SALES.EXAMPLE.COM disrupts the transaction.
End of image description.