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Auto-scaling is often referred to in the context of resource provisioning, scalability, and elasticity. These terms are often used interchangeably, but they are slightly different concepts. Understanding the differences between these concepts can help us to identify the unique issues of auto-scaling and focus on the solutions. In [8], the key features are: The ability to scale out (i.e., the automatic addition of extra resources during increased demand) and scale in (i.e., the automatic termination of extra unused resources when demand decreases, to minimize cost). The capability of setting rules for scaling out and in. The facility to automatically detect and replace unhealthy or unreachable instances. |
IEEE/ICACT20230145 Slide.08
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