Service Limits
Service Limits are the predefined maximums for resources and services in AWS accounts.
Description
In the context of Amazon Web Services (AWS), Service Limits refer to the predefined maximum thresholds that restrict the amount and type of resources that a user can provision within their AWS account. These limits are put in place to ensure fair resource distribution among users and to protect the overall stability and performance of the AWS infrastructure. Each AWS service has its own set of limits, which can include quotas on the number of instances, storage capacity, or API requests. While many of these limits are set by AWS, users can request increases through the AWS Support Center. Understanding service limits is crucial for architects and developers, as exceeding these limits can lead to service interruptions, degraded performance, or failed deployments. It is important to plan resource usage accordingly and monitor usage regularly to avoid hitting these limits during peak operation times, especially in environments with fluctuating workloads.
Examples
- An EC2 instance limit, which might restrict a user to 20 running instances per region.
- A limit on the number of Elastic Load Balancers (ELBs) that can be created in a region, typically set to 50.
Additional Information
- Service Limits can vary by AWS region, meaning users should check limits specific to the region they are operating in.
- AWS provides a service limit dashboard in the Management Console, allowing users to monitor and request limit increases easily.