Per https://github.com/openstack/swift3/blob/1.12/swift3/request.py#L1263-L1266,
when the request had not authenticated yet, it would send a HEAD subrequest and then process by headers_to_container_info with resp.sw_headers. It will lose all sysmeta stored in resp.sysmeta_headers.
swift3 version is 1.12
Following are pdb outputs:
> /usr/lib/python2.7/site-packages/swift3/request.py(1256)get_container_info()
-> if is_success(info['status']):
(Pdb) l
1251 if self.is_authenticated:
1252 # if we have already authenticated, yes we can use the account
1253 # name like as AUTH_xxx for performance efficiency
1254 sw_req = self.to_swift_req(app, self.container_name, None)
1255 info = get_container_info(sw_req.environ, app)
1256 -> if is_success(info['status']):
1257 return info
1258 elif info['status'] == 404:
1259 raise NoSuchBucket(self.container_name)
1260 else:
1261 raise InternalError(
(Pdb) resp = self.get_response(app, 'HEAD', self.container_name, '')
(Pdb) info2 = headers_to_container_info(resp.sw_headers, resp.status_int)
(Pdb) info
{u'status': 204, u'sync_key': None, u'write_acl': None, u'versions': None, u'storage_policy': 0, u'bytes': 0, u'meta': {}, u'cors': {u'allow_origin': None, u'expose_headers': None, u'max_age': None}, u'sysmeta': {u'versions-mode': 'history', u'versions-location': 'test112+versioning', u'swift3-acl': '{"Owner":"s3_proj:s3test","Grant":[{"Grantee":"s3_proj:s3test","Permission":"FULL_CONTROL"}]}'}, u'object_count': 0, u'read_acl': None}
(Pdb) info2
{'status': 204, 'sync_key': None, 'storage_policy': '0', 'meta': {}, 'cors': {'allow_origin': None, 'expose_headers': None, 'max_age': None}, 'sysmeta': {'versions-mode': 'history', 'versions-location': 'test112+versioning'}, 'read_acl': None, 'object_count': '0', 'write_acl': None, 'versions': None, 'bytes': '0'}
swift3-acl is missing in the sysmeta of info2*.
*info2 is the return value of the else clause.
Fix proposed to branch: master
Review: https:/