【MySQL】MySQL server has gone away 怎么处理？

直接上代码：

from django.db import connection
...
def is_connection_usable():
    try:
        connection.connection.ping()
    except:
        return False
    else:
        return True
...

def do_work():
    while(True): # Endless loop that keeps the worker going (simplified)
        if not is_connection_usable():
            connection.close()
        try:
            do_a_bit_of_work()
        except:
            logger.exception("Something bad happened, trying again")
            sleep()

参考资料：

http://luruoyu.blog.51cto.com/2876338/788315

https://code.djangoproject.com/ticket/21597

http://stackoverflow.com/questions/14163429/python-and-django-operationalerror-2006-mysql-server-has-gone-away

http://stackoverflow.com/questions/7835272/django-operationalerror-2006-mysql-server-has-gone-away

https://github.com/celery/django-celery/issues/359