ConnectionError 连接到 IBM Analytics Engine答案

【问题标题】：ConnectionError connecting to IBM Analytics EngineConnectionError 连接到 IBM Analytics Engine
【发布时间】：2017-12-16 16:00:38
【问题描述】：

我正在尝试将 python-ambariclient 与 IBM Analytics Engine 一起使用：

$ pip install --quiet python-ambariclient

然后

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)

但是，我遇到了连接问题：

ConnectionError: HTTPConnectionPool(host='XXXXXX.bi.services.us-south.bluemix.net', port=9443): url: /api/v1/clusters 超过最大重试次数（由 ProtocolError('Connection aborted .', RemoteDisconnected('远程结束关闭连接无响应',)))

【问题讨论】：

标签： ibm-cloud analytics-engine

【解决方案1】：

我错过了协议：

...
url = urlparse(AMBARI_URL)

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

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

完整代码：

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)

【讨论】：