MySQL 服务器已消失(代码 2006)

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How to enable MySQL client auto re-connect with MySQLdb?

我遇到了同样的问题，我使用 pythonanywhere.com，当我编写 p.save() 时出现如下错误。

它说更新 mysql 来修复它，但我不知道我需要编写什么代码或 shell 命令。

你能帮帮我吗？

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/django/db/models/base.py", line 545, in save
    force_update=force_update, update_fields=update_fields)
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/django/db/models/base.py", line 570, in save_base
    with transaction.commit_on_success_unless_managed(using=using, savepoint=False):
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/django/db/transaction.py", line 280, in __enter__
    connection.set_autocommit(False)
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 340, in set_autocommit
    self._set_autocommit(autocommit)
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 461, in _set_autocommit
    self.connection.autocommit(autocommit)
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/django/db/utils.py", line 99, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 461, in _set_autocommit
    self.connection.autocommit(autocommit)
  File "/home/daro822/.virtualenvs/django16/local/lib/python2.7/site-packages/MySQLdb/connections.py", line 243, in autocommit
    _mysql.connection.autocommit(self, on)
OperationalError: (2006, 'MySQL server has gone away')

Answer 1

您与数据库的连接已关闭，因为它空闲时间太长。从回溯来看，您似乎是在以交互方式进行查询。如果您知道自己已经闲置超过 5 分钟，您应该这样做:

from django.db import connection; connection.close()