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Oracle 11g Streams Implementer's Guide by Eric Yen, Ann L. R. McKinnell

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Streams and Oracle RAC

Oracle Real Application Cluster ( RAC) is one of the components used in Oracle Maximum Available Architecture (MAA). As such, we are seeing more Oracle RAC configurations being deployed more often to support High Availability requirements. Oracle Streams does work in an Oracle RAC configuration.

Pre-planning must be done in order to fully utilize both Oracle Streams and Oracle RAC. There must be careful considerations related to the design, and implementation of: Capture, Queues, Propagation, and Apply processes. Oracle RAC must be configured so that all archive logs can be accessed by Capture process. As Capture process will follow the Queue if an instance goes down, the configuration of Capture and Queues should be planned ...

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