python: [Errno 10054] An existing connection was forcibly closed by the remote host

问题

I am writing python to crawl Twitter space using Twitter-py. I have set the crawler to sleep for a while (2 seconds) between each request to api.twitter.com. However, after some times of running (around 1), when the Twitter's rate limit not exceeded yet, I got this error.

[Errno 10054] An existing connection was forcibly closed by the remote host.

What are possible causes of this problem and how to solve this?

I have searched through and found that the Twitter server itself may force to close the connection due to many requests.

Thank you very much in advance.

回答1:

This can be caused by the two sides of the connection disagreeing over whether the connection timed out or not during a keepalive. (Your code tries to reused the connection just as the server is closing it because it has been idle for too long.) You should basically just retry the operation over a new connection. (I'm surprised your library doesn't do this automatically.)

回答2:

there are many causes such as

The network link between server and client may be temporarily going down.
running out of system resources.
sending malformed data.

To examine the problem in detail, you can use Wireshark.

or you can just re-request or re-connect again.

回答3:

For me this problem arised while trying to connect to the SAP Hana database. When I got this error,

OperationalError: Lost connection to HANA server (ConnectionResetError(10054, 'An existing connection was forcibly closed by the remote host', None, 10054, None))

I tried to run the code for connection(mentioned below), which created that error, again and it worked.


    import pyhdb
    connection = pyhdb.connect(host="example.com",port=30015,user="user",password="secret")
    cursor = connection.cursor()
    cursor.execute("SELECT 'Hello Python World' FROM DUMMY")
    cursor.fetchone()
    connection.close()

It was because the server refused to connect. It might require you to wait for a while and try again. Try closing the Hana Studio by logging off and then logging in again. Keep running the code for a number of times.

来源：https://stackoverflow.com/questions/8814802/python-errno-10054-an-existing-connection-was-forcibly-closed-by-the-remote-h

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python

twitter

web-crawler