Hey there, let's troubleshoot why your CloudFront Price Class change isn't taking effect even after days. Here are the key steps you need to take to get it working:

• 确认分发配置已完成部署
  CloudFront pushes configuration changes to its global edge network, which can take anywhere from a few minutes to over an hour (rarely longer). Head to the CloudFront console, find your distribution, and check its status—only when it shows Deployed does the new configuration live across all edges. If it's still In Progress, you just need to wait for the deployment to finish.

• 强制刷新边缘节点缓存
  Old cached content on edge locations can keep traffic routing through the previous regions, even after your Price Class updates. Fix this by:

  • Creating a cache invalidation: Go to your distribution's Invalidations tab, create a new invalidation request, and enter /* (or specific paths if you don't need a full refresh). This forces edge nodes to fetch fresh content from your origin and apply the new Price Class rules immediately.
  • Checking your cache policy TTL: If your cache has an extremely long TTL, edge nodes will hold onto old content until it expires. Adjust the TTL in your cache policy or combine it with an invalidation to speed up the transition.

• Double-check your Price Class setting
  It sounds obvious, but it's easy to miss—navigate back to your distribution's General tab and confirm the Price Class is set to your desired option (e.g., Use Only US, Canada and Europe instead of Use All Edge Locations). Sometimes configurations fail to save properly, so verifying this step saves you from chasing ghosts.

• Verify routing and custom domain setup
  If you're using a custom domain, make sure its DNS records still point to your CloudFront distribution's domain name. Also, check if there are other CloudFront distributions handling traffic for the same domain—you might be modifying the wrong one without realizing it.

• Check CloudFront access logs for real-time insights
  Enable CloudFront access logs (if you haven't already) and look at the edge-location field in the logs. This will show you exactly which regions traffic is hitting. Sometimes the CloudFront console's traffic stats have a lag, so logs give you the most accurate picture of whether the Price Class change is actually being applied.

内容的提问来源于stack exchange，提问作者Paloma Macetko