Cloud Confusing
Explaining hosting, AWS, Wordpress, static sites, and all manner of cloud solutions.
Cache Invalidation and Amazon S3
So you have an Amazon S3 hosted site with CloudFront caching in front of it? Nice work — it’s an affordable and highly scalable solution. One downside with this is that the cache, which helps makes your site so fast and cheap to run, is designed to hold on to files, possibly serving an old version to visitors.
That’s normally not a problem (it’s literally the point of a cache), but if you are making a lot of changes to the site and you want visitors to see them as soon as possible, then you will need to invalidate the cache and tell CloudFront to serve the most recent files.
Here is how you can do that…
Sal August 6th, 2018
Posted In: AWS
Tags: Amazon S3, Cache Invalidation, CloudFront, TTL