Distributed transaction between Db2 host systems

This example shows distributed transactions between three Db2 host systems.

The following figure shows that all three locations are Db2 host systems that run on MVS, OS/390®, or z/OS®.
Figure 1. Distributed transaction between Db2 systems

A graphical representation of an example of a distributed transaction between Db2 systems.

This example shows a thread that originates at location A. Data is requested from location B and location C. Because this transaction is distributed across Db2 systems, it is called an allied-distributed thread at location A. The threads initiated at the remote locations to handle the client requests are called database access threads (DBAT).

If trace data is available, OMEGAMON AI for Db2 reports on the activity that is carried out at each location.