Question

我使用Python Pymysql连接到AWS RDS db。这一天都在运行，但现在我无法连接到数据库。但是，当我使用相同的机器和相同的凭据时，它通过Mysql工作台连接，但通过pycharm这不起作用。，

代码：

   configParser = ConfigParser.RawConfigParser()
   configFilePath = r'docs/credentials.cfg'
   configParser.read(configFilePath)

   User = configParser.get('aws-config','user')
   Pswd = configParser.get('aws-config','pswd')
   Host = configParser.get('aws-config','hostdps')
   Databs = configParser.get('aws-config','databs')
   db = pymysql.connect(host=Host, user=User, password=Pswd, db=Databs, charset='utf8mb4', cursorclass=pymysql.cursors.DictCursor,local_infile=True)

错误：

  File "/usr/local/lib/python2.7/dist-packages/pymysql/__init__.py", line 90, in Connect
    return Connection(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 688, in __init__
    self.connect()
  File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 906, in connect
    self._request_authentication()
  File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 1114, in _request_authentication
    auth_packet = self._read_packet()
  File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 961, in _read_packet
    packet_header = self._read_bytes(4)
  File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 995, in _read_bytes
    "Lost connection to MySQL server during query (%s)" % (e,))
pymysql.err.OperationalError: (2013, 'Lost connection to MySQL server during query ([Errno 104] Connection reset by peer)')

如何确保在生产中不会发生这种情况？（将来防止此类失败）。

Answer 1

为什么你不使用连接池？
连接池可以自动管理连接，因此可以解决此问题。

你可以试试任何python mysql池。
池例子
这个this link 或者直接使用github方便的代码。PyMysqlPool

Python mysql（使用pymysql）无法连接

1 个答案: