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1

I updated my questions to include that I tried no-cache, but I'm still seeing the max-age=3600. Does the old file need to expire before the new no-cache file takes over?
– Roger Gilbrat
Commented Dec 21, 2012 at 20:25
3

@mike it would be nice to have a feature to invalidate/flush the cache like on CDN.
– themihai
Commented Dec 19, 2013 at 20:10
3

@mihai - it would be difficult to provide a cache invalidation feature because once served with a non-0 cache TTL any cache on the Internet (not just those under Google's control) is allowed (per HTTP spec) to cache the data.
– Mike Schwartz
Commented Jun 20, 2014 at 22:11
1

After discussing with @aqquadro I figured out the issue: cloud.google.com/storage/docs/gsutil/addlhelp/… incorrectly stated that uploading a non-public object and then setting the ACL to public-read would result in a non-cacheable object. In fact the HTTP spec allows public objects to be cached by default, so to inhibit caching you need to set a Cache-Control header, for example using the command: gsutil -h Cache-Control:private cp -a public-read file.png gs://your-bucket. (I'll also fix the incorrect documentation.)
– Mike Schwartz
Commented Jun 16, 2015 at 16:13
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@Pier - not in one request. You'd have to do something like: gsutil -m -h "Cache-Control:no-cache, no-store, must-revalidate" gs://your-bucket/** which will make a request for every object in the bucket.
– Mike Schwartz
Commented Jun 10, 2016 at 22:32

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