Amazon EMR Serverless is a serverless option in Amazon EMR that makes it simple for data engineers and data scientists to run open-source big data analytics frameworks without configuring, managing, and scaling clusters or servers. Today we are introducing a new account-level vCPU-based quota. The account-level per Region vCPU-based quota allows you to control the maximum number of aggregated vCPUs your applications are able to scale up to within a Region. Configuring such quotas can help you avoid runaway workloads or inefficient queries.
Source:: Amazon AWS