Database - RAC/Scalability (MOSC)

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DRM and Service load balance

edited Apr 2, 2019 5:00AM in Database - RAC/Scalability (MOSC) 2 commentsAnswered

DRM expects that read/write to an object come to one certain instance, so it can remaster buffer blocks belong to that object to the specific instance.

However, when I create a service, I can specify several instances as "prefer", and then client connections will be distributed among those instances in a load balance manner.

If multiple clients access(read/write) the same object (e.g. certain table), then this load balance manner actually conflicts with DRM?

Please correct me if I am wrong.

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