C H A P T E R  7

Resource Management

If resources were unlimited, there would be no need to manage them. We see this in all aspects of our daily lives. If yours was the only car on the road, traffic signals wouldn't be necessary. If you were the only customer at the bank, there would be no need for the winding ropes that form orderly lines. But as we all know, this is rarely the case. It is the same for database servers. When the load on the system is light, there is very little need for resource management. Processes complete in a fairly consistent period of time. But when the system gets busy and resources become scarce, we can find ourselves with an angry mob on our hands.

For a number of years now, Oracle's Database Resource Manager (DBRM) ...

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