Cloud Files Meta Data: Any reason to be concerned with custom meta?

Question

I've been using Rackspace Cloud Files with the PHP API to store uploaded files. The documents are referenced in a local database for easy lookup. All is working well, but I have some concerns with my storage of meta data. I'm storing custom meta data with the Cloud Files via the Rest API.

https://github.com/rackspace/php-cloudfiles

I'm storing some custom name/value pairs in the "meta data" for the cloud file. It seems like the meta data is intended for httpd headers such as Content-Type?

http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html

Is there any problem with storing some custom meta data fields in the cloud files meta data? For example, I am storing the following so I can find where the document was created from: 'Current-Url', 'Document-Type', 'Original-Name'. I assume it will be fine, as long as it's not already a typical header?

Answer 1

According to their docs:

http://docs.rackspace.com/files/api/v1/cf-devguide/content/Update_Container_Metadata-d1e1900.html

The only thing you must do is prefix the custom meta data with:

X-Container-Meta-

There is no problem with storing custom meta data.