问题描述
我正在使用某个网站提供的应用程序定期从该网站收集一些数据，例如一次 30 秒.然后将返回的响应记录在数据库中.
I'm using an app provided by some website to collect some data from the website periodly, say, 30s a time. The returned response is then recorded in database.
我通过导入请求使用请求模块并编写代码来捕获异常.main函数的代码如下:
I use the requests modular by import requests and write codes to catch Exception. The codes for the main function are as following:
def get_response(self):
try:
response = requests.get(self.request_url)
if response.status_code == 200:
return response.json()
except Exception as e:
msg = "Exception is:
%s
" % e
print msg
上述功能在最初的几个小时内运行良好.该函数还可以从一些异常中恢复，例如:('连接中止.', BadStatusLine("''",))
或者('连接中止.', error(10053, ''))它忽略异常(通过在数据库中记录 Null)并继续获得下一个周期的响应.
The above function works quite well for the first several hours.
The function can also recover from some exceptions like:
('Connection aborted.', BadStatusLine("''",))
or
('Connection aborted.', error(10053, ''))
It omits the exception (by recording a Null in database) and continues to get the response of next period.
但是，当遇到 10054 错误时，该函数停止工作.
However, the function stops working when encoutering a 10054 error.
Exception is:
('Connection aborted.', error(10054, ''))
我查看数据库发现在10054错误到来之后所有的响应都是Null.我首先猜测该网站可能会崩溃，因此没有收到任何回复.但是当我手动重新启动该功能时，它又开始得到响应.所以这与网站故障无关.
I check the database to find that all the response is Null after the time that the 10054 error comes. I firstly guess that the website may breakdown, thus no response is received. But when I manually restart the function, it starts to get response again. So that's no realated with breakdown of the website.
我在stackoverflow中搜索，发现:Errno 10054 An现有连接被远程主机强行关闭.但是不知道怎么解决.
I search in stackoverflow and find: Errno 10054 An existing connection was forcibly closed by the remote host. But I don't know how to resolve it.
您能否针对这个问题提供一些解决方案?(理想情况下)或提供一些解决方案来重新启动功能而无需手动重新启动?(看起来一旦我重新启动该功能，它就会再次工作.)
Could you please provide some solotion to this problem?(ideally speaking) or provide some solution to restart the function without manually restarting? (It looks like once I restart the funtion and it works again.)
提前致谢.
推荐答案
Web 服务器主动拒绝了您的连接.这通常是因为它拥塞、有速率限制或认为您正在发起拒绝服务攻击.如果你从服务器上得到这个，你应该在重试之前睡一会儿.事实上，如果你在重试前不睡觉，你就是一个拒绝服务攻击.礼貌的做法是实现(1,2,4,8,16,32)秒的渐进式睡眠.
The web server actively rejected your connection. That's usually because it is congested, has rate limiting or thinks that you are launching a denial of service attack. If you get this from a server, you should sleep a bit before trying again. In fact, if you don't sleep before retry, you are a denial of service attack. The polite thing to do is implement a progressive sleep of, say, (1,2,4,8,16,32) seconds.
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