Ceph » rgw

When uploading a file onboth fcgid and fastcgi, the PUT request with the 'Expect: 100-Continue' triggers an automatic 100-Continue response from the server without giving the gateway a chance to respond differently (e.g., when there's no permissions). This leads to the client uploading the entire file and only then does it get the permission denied response.

It might be a problem with the fastcgi/fcgid implementation, and could be that due to buffering it reads more than the header before going to the gateway, which triggers the apache automatic response. Should investigate more into this and if that is the case we might be able to modify fastcgi so that it doesn't do that.