Release 10.1B: OpenEdge Replication
User Guide
OpenEdge Replication server
For OpenEdge Replication to succeed in keeping the source and target databases identical, communication has to take place so that transaction log records from the source are propagated to the target. The OpenEdge Replication server connects to the source database and sends any updates made there to the OpenEdge Replication agent on the target machine or machines. Also, the OpenEdge Replication server process provides communications for startup, schema locks, and server-side recovery if a failure occurs.
Figure 1–3 shows the OpenEdge Replication server in the OpenEdge Replication model.
Figure 1–3: OpenEdge Replication server
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The OpenEdge Replication server must reside on the source database machine. The OpenEdge Replication server:
- Connects to the source database and establishes and maintains communications with the database server.
- Establishes, maintains, and controls communication with the OpenEdge Replication agents.
- Sends source database updates to the target database to keep them identical. This is achieved by using the AI transaction log where AI blocks of information are sent to the target.
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