Ошибка соединения с IBM Analytics Engine

Question

Я пытаюсь использовать python-ambariclient с IBM Analytics Engine:

$ pip install --quiet python-ambariclient

затем

from future.standard_library import install_aliases
install_aliases()
from urllib.parse import urlparse

import json
vcap = json.load(open('vcap.json'))

USER         = vcap['cluster']['user']
PASSWORD     = vcap['cluster']['password']
AMBARI_URL   = vcap['cluster']['service_endpoints']['ambari_console']
CLUSTER_ID   = vcap['cluster']['cluster_id']

url = urlparse(AMBARI_URL)

HOST = url.hostname
PORT = url.port

from ambariclient.client import Ambari
ambari = Ambari(HOST, port=PORT, username=USER, password=PASSWORD)

for cluster in ambari.clusters:
    print('> ' + cluster.cluster_name)

Тем не менее, я получаю проблему с подключением:

ConnectionError: HTTPConnectionPool (host = 'XXXXXX.bi.services.us-south.bluemix.net', port = 9443): превышено максимальное количество повторов с помощью url: /api/v1/cluster (вызвано ProtocolError('Соединение прервано.', RemoteDisconnected("Закрытое соединение удаленного конца без ответа",)))

Answer 1

Я пропустил протокол:

...
url = urlparse(AMBARI_URL)

HOST = url.hostname
PORT = url.port
PROTOCOL = url.scheme  
...

ambari = Ambari(HOST, ... , protocol=PROTOCOL)

Полный код:

from future.standard_library import install_aliases
install_aliases()
from urllib.parse import urlparse

import json
vcap = json.load(open('vcap.json'))

USER         = vcap['cluster']['user']
PASSWORD     = vcap['cluster']['password']
AMBARI_URL   = vcap['cluster']['service_endpoints']['ambari_console']
CLUSTER_ID   = vcap['cluster']['cluster_id']

url = urlparse(AMBARI_URL)

HOST = url.hostname
PORT = url.port
PROTOCOL = url.scheme

from ambariclient.client import Ambari
ambari = Ambari(HOST, port=PORT, username=USER, password=PASSWORD, protocol=PROTOCOL)

for cluster in ambari.clusters:
    print('> ' + cluster.cluster_name)