Some Distributed Processing Server (DPS) runtime environments, for example, MQSeries, Tuxedo, CICS, and IMS, support the situation where one DPS component initiates a request of another DPS component. These DPS-to-DPS flows are known as the Server-to-Server flows. For server environments that support server-to-server flows between separate server managers, the flow behaves similarly to a client-to-server flow.
Each server represents a unit of work. Commit processing occurs when the server terminates. This is true for Server-to-Server flows where the called server commits its changes before returning to the calling server. The calling server commits its own changes regardless of the status of the called server. The two servers are not part of two-phase commit processing.
Note: For DPS-to-DPS flows within the same server manager, the flow processing is a local function call.
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