Ceph » rgw

The Content-Length header is mandatory according to OpenStack Object Storage API v1: http://docs.openstack.org/api/openstack-object-storage/1.0/content/GET_showContainerDetails__v1__account___container__storage_container_services.html.

The problem is absent while using the civetweb front-end due to extra level of buffering which allows to properly calculate and append the header when a given RGWOp does not generate it. Please take a look on RGWMongoose::write_data(), RGWMongoose::complete_header() and RGWMongoose::complete_request() methods

1. RGW via civetweb: curl -i http://localhost:8000/swift/v1/cont -X GET -H "X-Auth-Token: $token"

HTTP/1.1 200 OK
Content-type: text/plain; charset=utf-8
Content-Length: 5

file

2. RGW via nginx: curl -i http://localhost:8080/swift/v1/cont -X GET -H "X-Auth-Token: $token"

HTTP/1.1 200 OK
Server: nginx/1.4.6 (Ubuntu)
Date: Fri, 27 Feb 2015 12:55:53 GMT
Content-Type: text/plain; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive

file