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Oracle GoldenGate is often used in mission-critical systems with stringent high availability requirements. In an Oracle to Oracle scenario, minimal latency between the source and the destination databases is important to achieve minimal downtime and minimal data loss in case of a failover. In an Oracle Real Application Cluster (RAC) configuration access to the database is not dependent on the availability of any one of the servers in the cluster. Oracle GoldenGate however could be impacted by non-availability of a single server since many critical components run only on one of the cluster servers.
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