cote de pablo dating robert wagner - Invalidating the cache

For more information about the charges for invalidation, see Paying for Object Invalidation.

Instead of finding some compromise, you can have both with cache invalidation.

When application data changes, the application takes care of invalidating its web representation as out-of-date.

You can submit a specified number of invalidation paths each month for free.

If you submit more than the allotted number of invalidation paths in a month, you pay a fee for each invalidation path that you submit.

Invalidating a piece of content means telling the proxy server to no longer serve that content to clients.

The proxy can choose to either discard the content immediately, or do so when it is next requested.For lower load on the application and fastest response time, you want to cache content for a long period.But at the same time, you want your clients to see fresh content as soon as there is an update.If you want to invalidate selected objects but your users don't necessarily access every object on your origin, you can determine which objects viewers have requested from Cloud Front and invalidate only those objects.To determine which objects viewers have requested, enable Cloud Front access logging.On that next request, the proxy will fetch a fresh copy from the application.

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