When working with cloud service providers, you may notice that at some point there are service / quota limitations.
Some limits are per account / subscription; some of them are per region and some limits are per pricing tier (free tier vs billable).
Here are some of the most common reasons for service / quota limitations:
- Performance issues on the cloud provider’s side – loading a lot of virtual machines on the same data center requires a lot of resources from the cloud provider
- Avoiding spikes in usage – protect from a situation where one customer consumes a lot of resources that might affect other customers and might eventually cause denial of service
For more information about default cloud service limits, see:
- AWS Service Limits: https://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html
- Azure subscription and service limits, quotas, and constraints: https://docs.microsoft.com/en-us/azure/azure-subscription-service-limits
- Google App Engine Quotas: https://cloud.google.com/appengine/quotas
- Oracle Cloud Service Limits: https://docs.us-phoenix-1.oraclecloud.com/Content/General/Concepts/servicelimits.htm
Default limitations can be changed by contacting the cloud service provider’s support and requesting a change to the default limitation.
For instructions on how to change the service limitations, see:
- How do I manage my AWS service limits? https://aws.amazon.com/premiumsupport/knowledge-center/manage-service-limits/
- Understanding Azure Limits and Increases https://azure.microsoft.com/en-us/blog/azure-limits-quotas-increase-requests/
- Google Resource Quotas https://cloud.google.com/compute/quotas#request_quotas
- Oracle Cloud – Requesting a Service Limit Increase https://docs.us-phoenix-1.oraclecloud.com/Content/General/Concepts/servicelimits.htm#three