Comment 27 for bug 1461036

From ostf.log :

"HttpConnectionPool is full, discarding connection: .." when glance client sends an authorization request.
Looks like it is caused by this class requests.adapters.HTTPAdapter(pool_connections=10, pool_maxsize=10, max_retries=0, pool_block=False) , when pool_maxsize is reached .

HTTPAdapter is initialized in glanceclient from here: https://github.com/openstack/python-glanceclient/blob/master/glanceclient/common/http.py#L142