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Compaq Reliable Transaction Router User Manual

Page 21

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RTR Terminology

single node configuration can be useful during development, but
would not normally be used when your application is deployed.

Figure 1–9 RTR with Browser, Single Node, and Database

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Browser

TR

BE

FE

DB

When creating the configuration used by an application and
defining the nodes where a facility has its frontends, routers,
and backends, the setup must also define which nodes will
have journal files. Each backend in an RTR configuration must
have a journal file to capture transactions when other nodes
are unavailable. When applications are deployed, often the
backend is separated from the frontend and router, as shown in
Figure 1–10.

Figure 1–10 RTR Deployed on Two Nodes

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Browser

TR

BE

FE

Client

Journal

DB

Server

Introduction 1–11