Djongo 没有连接到 mlab 服务器

Posted 2023-02-16

【中文标题】Djongo 没有连接到 mlab 服务器

【英文标题】：Djongo not connecting to mlab server

【发布时间】：2020-07-07 08:36:00

【问题描述】：

我正在使用 djongo 和 django2 连接到 mlab mongodb 实例。 settings.py

    'default': 
        'ENGINE': 'djongo',
        'NAME': 'neon',
        'HOST': 'mongodb://username:[e-mail]:49605/mlab1',
    

虽然我正在使用这个设置，但 PyMongo 连接到本地的 mongodb 实例。

log

Traceback (most recent call last):
  File "/usr/lib/python3.7/threading.py", line 926, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.7/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
    self.check_migrations()
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/core/management/base.py", line 453, in check_migrations
    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/db/migrations/executor.py", line 18, in __init__
    self.loader = MigrationLoader(self.connection)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/db/migrations/loader.py", line 49, in __init__
    self.build_graph()
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/db/migrations/loader.py", line 212, in build_graph
    self.applied_migrations = recorder.applied_migrations()
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/db/migrations/recorder.py", line 73, in applied_migrations
    if self.has_table():
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/db/migrations/recorder.py", line 56, in has_table
    return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/db/backends/base/introspection.py", line 48, in table_names
    return get_names(cursor)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/django/db/backends/base/introspection.py", line 43, in get_names
    return sorted(ti.name for ti in self.get_table_list(cursor)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/djongo/introspection.py", line 47, in get_table_list
    for c in cursor.db_conn.list_collection_names()
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/pymongo/database.py", line 856, in list_collection_names
    for result in self.list_collections(session=session, **kwargs)]
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/pymongo/database.py", line 819, in list_collections
    _cmd, read_pref, session)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1454, in _retryable_read
    read_pref, session, address=address)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1253, in _select_server
    server = topology.select_server(server_selector)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/pymongo/topology.py", line 235, in select_server
    address))
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/pymongo/topology.py", line 193, in select_servers
    selector, server_timeout, address)
  File "/home/rahul/projects/django/neon/lib/python3.7/site-packages/pymongo/topology.py", line 209, in _select_servers_loop
    self._error_message(selector))
pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused

【问题讨论】：

nesdis.github.io/djongo/integrating-django-with-mongodb 中列出的配置显示host 应该在CLIENT 中，如果你使用它可以吗？

好的，我会尝试并告诉你。

是的，这行得通。非常感谢

【参考方案1】：

mLab

主机是这样在客户端里面的

DATABASES = 
    'default': 
        'ENGINE': 'djongo',
        'NAME': 'fitbitt',

        'CLIENT': 
        'host':'mongodb://your_username:[e-mail]:63008/fitbitt',
        'username':'your_username',
        'password':'your_password'