11. Troubleshooting Problematic Scenarios in RAC
Oracle Real Application Clusters (RAC) is the parallelized cluster version of the Oracle database server family and plays a very significant role in everyday Oracle database server operations, particularly Exadata. RAC was born in Oracle version 6 in the form of Oracle Parallel Server (OPS), which was later rebranded as Oracle Real Application Clusters in version 9i.
In addition to having the ability to scale horizontally without any downtime, RAC gives the Oracle database server the ability to load balance Oracle database workloads among multiple database nodes. The load-balancing feature of RAC is achieved by fusing the memory areas of the various cluster nodes by a mechanism known as Global ...
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