What is the maximum rate for CDN invalidation requests?

The maximum rate for Cloud CDN invalidation requests is indeed 1 request per minute. This limitation is in place to ensure the efficiency and performance of the cache management process. When a user requests the invalidation of an object in the Cloud CDN cache, following a rate limit of 1 request per minute prevents excessive load on the system. It helps maintain overall service stability while allowing changes to propagate through the cache in a controlled manner.

By adhering to this rate limiting, Google Cloud ensures that users can effectively manage their cache without overwhelming the infrastructure, which could lead to delays or failures in response to requests. This balance between user needs and system performance is crucial for maintaining a reliable content delivery network.