Examine autoscale factors

Question 1

What is autoscaling?

Answer 1

Autoscaling is a cloud system or process that adjusts available resources based on the current demand. Autoscaling performs scaling in and out, as opposed to scaling up and down.

Question 2

Azure App Service Autoscaling

Answer 2

Autoscaling in Azure App Service monitors the resource metrics of a web app as it runs. It detects situations where other resources are required to handle an increasing workload, and ensures those resources are available before the system becomes overloaded.

Autoscaling responds to changes in the environment by adding or removing web servers and balancing the load between them. Autoscaling doesn’t have any effect on the CPU power, memory, or storage capacity of the web servers powering the app, it only changes the number of web servers.

Question 3

Autoscaling rules

Answer 3

Autoscaling makes its decisions based on rules that you define. A rule specifies the threshold for a metric, and triggers an autoscale event when this threshold is crossed. Autoscaling can also deallocate resources when the workload has diminished.