偶尔连不上腾讯的mysql云数据库,不明原因

日常使用navicat或者python的pymysql连接操作腾讯Mysql云数据库,最近偶尔会显示连接不上,第二次重试后,又能顺利连接。请问这是什么原因?

Traceback (most recent call last):

File "D:\Anaconda\lib\site-packages\pymysql\connections.py", line 583, in connect
**kwargs)

File "D:\Anaconda\lib\socket.py", line 707, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):

File "D:\Anaconda\lib\socket.py", line 752, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):

gaierror: [Errno 11001] getaddrinfo failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "我运行的py文件路径", line 19, in
db = pymysql.connect("我的腾讯云数据库地址","我的账号","我的密码","连接的库名",端口号)

File "D:\Anaconda\lib\site-packages\pymysql__init__.py", line 94, in Connect
return Connection(*args, **kwargs)

File "D:\Anaconda\lib\site-packages\pymysql\connections.py", line 325, in init
self.connect()

File "D:\Anaconda\lib\site-packages\pymysql\connections.py", line 630, in connect
raise exc

OperationalError: (2003, "Can't connect to MySQL server on '我的腾讯云数据库地址' ([Errno 11001] getaddrinfo failed)")

估计是网络线路或者服务器不稳定。第一次不行,可能问题在于dns解析时间太长。

尝试更换为腾讯的dns试试