What design patterns or techniques have you used that are specifically geared toward scalability?
Patterns such as the Flyweight pattern seem to me to be a specialized version of the Factory Pattern, to promote high scalability or when working within memory or storage constraints.
What others have you used? (Denormalization of Databases, etc.) Do you find that the rules change when high availability or scalability is your primary goal?
Possible situations are:
We have two basic ways to achieve scalability, namely increasing system capacity, typically through replication, and performance optimization of system components.
A scalable system is one that can handle rapid changes to workloads and user demands. Scalability is the measure of how well that system responds to changes by adding or removing resources to meet demands.
Principles of Scalability Simply put, scalability is the ability of a system to handle sudden changes in workload without negatively impacting performance. It's usually broken down into three areas. Availability: The system should be available for use as much as possible (ideally, always).
A few patterns that come in mind:
Some resources:
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