python - 连接远程数据库后,迁移报错:Errno61, Connection Refused
问题描述
我最近开始使用 sql 并连接到远程 sql 服务器。我可以在 python shell 中对其运行查询并获得正确的结果。但是,当我跑步时
manage.py runserver
它告诉我需要迁移,但是当我迁移时,我收到一条错误消息:
django.db.utils.OperationalError: (2003, "Can't connect to MySQL server on '*host*' ([Errno 61] Connection refused)")
我应该怎么做才能解决这个错误。
setting.py 数据库:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': '*name*',
'USER': '*user*',
'PASSWORD': '********',
'HOST': '*host*',
'PORT': '****',
'OPTIONS': {
'sql_mode': 'traditional',
}
}
}
完整的错误列表在这里:
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/pymysql/connections.py", line 583, in connect
**kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py", line 727, in create_connection
raise err
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py", line 716, in create_connection
sock.connect(sa)
ConnectionRefusedError: [Errno 61] Connection refused
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/base/base.py", line 217, in ensure_connection
self.connect()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/base/base.py", line 195, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 233, in get_new_connection
return Database.connect(**conn_params)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/pymysql/__init__.py", line 94, in Connect
return Connection(*args, **kwargs)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/pymysql/connections.py", line 325, in __init__
self.connect()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/pymysql/connections.py", line 630, in connect
raise exc
pymysql.err.OperationalError: (2003, "Can't connect to MySQL server on 'masspike.ctqk1lhawxna.us-west-2.rds.amazonaws.com' ([Errno 61] Connection refused)")
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/management/base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/management/base.py", line 361, in execute
self.check()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/management/base.py", line 390, in check
include_deployment_checks=include_deployment_checks,
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/management/commands/migrate.py", line 64, in _run_checks
issues = run_checks(tags=[Tags.database])
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/checks/registry.py", line 72, in run_checks
new_errors = check(app_configs=app_configs)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/core/checks/database.py", line 10, in check_database_backends
issues.extend(conn.validation.check(**kwargs))
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/mysql/validation.py", line 9, in check
issues.extend(self._check_sql_mode(**kwargs))
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/mysql/validation.py", line 13, in _check_sql_mode
with self.connection.cursor() as cursor:
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/base/base.py", line 256, in cursor
return self._cursor()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/base/base.py", line 233, in _cursor
self.ensure_connection()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/base/base.py", line 217, in ensure_connection
self.connect()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/base/base.py", line 217, in ensure_connection
self.connect()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/base/base.py", line 195, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 233, in get_new_connection
return Database.connect(**conn_params)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/pymysql/__init__.py", line 94, in Connect
return Connection(*args, **kwargs)
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/pymysql/connections.py", line 325, in __init__
self.connect()
File "/Users/lwyss/PycharmProjects/NewWebsite/lib/python3.7/site-packages/pymysql/connections.py", line 630, in connect
raise exc
解决方案
错误来自MySQLConnector
“无法连接到 'masspike.ctqk1lhawxna.us-west-2.rds.amazonaws.com' 上的 MySQL 服务器([Errno 61] 连接被拒绝)”
所以这是一个网络问题,您的应用程序无法建立与数据库的 TCP 连接。可能是因为您的 RDS 实例缺少配置?错误的主机名?错误的端口?防火墙(如@Willem van Onsem 所述)?也许有关连接到他们的数据库服务的 Amazon AWS 指南可以帮助您
无论如何,它与您的程序代码无关,除了连接字符串是否错误。
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