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Hi Clay,

Thanks for your information. I am sorry that I made a mistake. You're right that
HEAD object returns 200 not 204, that's perfectly ok.

Meanwhile, HEAD account / container return 204 with Content-Length: 0. This is against
RFC7230, but from the discussion on the Change-Id: I5ab1eb85e777f259f4bd73a3a4a1802901925ed7
I understand that it can't be fixed in an easy way, and may not be worth the effort anyway.

Atsuo
--
                                       Ouchi Atsuo / ouchi.atsuo at jp.fujitsu.com
                                                                Fujitsu Limited


-----Original Message-----
From: Clay Gerrard [mailto:clay.gerrard at gmail.com] 
Sent: Thursday, May 07, 2015 1:54 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] [Swift] HEAD Object API status code

Can you give an example of an Object HEAD request returning 204?  I tried a HEAD of an object with a body and also a HEAD of an object of length 0 and I seem to get 200's...

Container's and accounts are a little more interesting story... [2]

-Clay

2. https://review.openstack.org/#/c/32647/

On Wed, May 6, 2015 at 5:40 PM, Ouchi, Atsuo <ouchi.atsuo at jp.fujitsu.com> wrote:


	Hello Swift developers,
	
	I would like to ask you on a Swift API specification.
	
	Swift returns 204 status code to a valid HEAD Object request with a Content-Length header,
	whereas the latest HTTP/1.1 specification (RFC7230) states that you must not send
	the header with a 204 status code.
	
	> 3.3.2.  Content-Length
	(snip)
	>    A server MUST NOT send a Content-Length header field in any response
	>    with a status code of 1xx (Informational) or 204 (No Content).  A
	>    server MUST NOT send a Content-Length header field in any 2xx
	>    (Successful) response to a CONNECT request (Section 4.3.6 of
	>    [RFC7231]).
	
	What I would like to know is, when you designed Swift APIs what was the reasoning
	behind choosing 204 status code to HEAD Object, over other status codes such as 200?
	
	Thanks,
	Atsuo
	--
	                                       Ouchi Atsuo / ouchi.atsuo at jp.fujitsu.com
	                                           tel. 03-6424-6612 / ext. 72-60728968
	                    Service Development Department, Foundation Service Division
	                                                                Fujitsu Limited
	
	
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