Posted On: Aug 21, 2018

AWS Key Management Service (KMS) has increased the request rate limit for a core set of KMS API operations, including Decrypt, Encrypt, GenerateDataKey, GenerateDataKeyWithoutPlaintext, GenerateRandom, and ReEncrypt. The request rate limits have been increased from 1,200 requests per second to 10,000 requests per second in US East (Northern Virginia), US West (Oregon), and EU (Ireland) regions. In all other regions where KMS is available, the limits are increased to 5,500 requests per second. These limit increases make it easier for you to scale your KMS operations.

The higher request rate limits will be reflected in your accounts automatically, and there is no further action required on your end. Customers with approved limits that are higher than the new limits will continue to have access to those higher limits. To learn more about KMS limits, visit our documentation. To see all the regions where KMS is available, see the AWS region table.