Benno Rice created LIBCLOUD-228:
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             Summary: Atmos driver's upload_object_via_stream is broken when 
the object does not already exist
                 Key: LIBCLOUD-228
                 URL: https://issues.apache.org/jira/browse/LIBCLOUD-228
             Project: Libcloud
          Issue Type: Bug
          Components: Storage
    Affects Versions: 0.10.1
            Reporter: Benno Rice
         Attachments: atmos_upload_object_via_stream.patch

Atmos doesn't like PUT requests being sent when the object has not already been 
created. The Atmos driver's implementation of upload_object_via_stream was 
using PUT requests with Range headers unconditionally.

The attached patch gets the driver to first check if the object exists. If not, 
the first chunk is sent as a POST request in order to create the object. If 
not, the first chunk is sent as a PUT with no Range header. Subsequent chunks 
are all sent as PUT requests with Range headers as before.

This has been tested against Ninefold's Atmos service.

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