linux线程响应慢,Python响应模块在Linux中使用多线程时不稳定

我正在尝试使用响应模块来模拟HTTP服务器，并且当调用请求为多线程时，我感觉它已损坏。

考虑以下：import json

import responses

import requests

import threading

try:

import urlparse

except ModuleNotFoundError:

import urllib.parse as urlparse

server_url = 'http://server'

headers_json = {'content-type': 'application/json'}

def init():

def endpoint(request):

id = urlparse.parse_qs(urlparse.urlparse(request.path_url).query)["id"][0]

data = {"foo": int(id)}

return 200, headers_json, json.dumps(data)

responses.add_callback(

responses.GET, server_url + '/',

callback=endpoint,

)

@responses.activate

def test():

init()

def responses_routine():

resp = requests.get(

server_url + '/?id=456',

headers=headers_json,

)

# {"foo": "456"}

print(resp.json()["foo"])

def print_routine():

print("456")

# This will print "456"

#responses_routine()

# This will print "456" after 2 seconds

#threading.Timer(2, print_routine).start()

# This will fail

threading.Timer(2, responses_routine).start()

test()

它失败并显示一个堆栈，该堆栈明确指示未进行任何响应 。 请求模块确实尝试向远程服务器发送HTTP代码。Exception in thread Thread-1:

Traceback (most recent call last):

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/connection.py", line 159, in _new_conn

(self._dns_host, self.port), self.timeout, **extra_kw)

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/util/connection.py", line 57, in create_connection

for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):

File "/opt/python/python3.6.6/lib/python3.6/socket.py", line 745, in getaddrinfo

for res in _socket.getaddrinfo(host, port, family, type, proto, flags):

socket.gaierror: [Errno -2] Name or service not known

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen

chunked=chunked)

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 354, in _make_request

conn.request(method, url, **httplib_request_kw)

File "/opt/python/python3.6.6/lib/python3.6/http/client.py", line 1239, in request

self._send_request(method, url, body, headers, encode_chunked)

File "/opt/python/python3.6.6/lib/python3.6/http/client.py", line 1285, in _send_request

self.endheaders(body, encode_chunked=encode_chunked)

File "/opt/python/python3.6.6/lib/python3.6/http/client.py", line 1234, in endheaders

self._send_output(message_body, encode_chunked=encode_chunked)

File "/opt/python/python3.6.6/lib/python3.6/http/client.py", line 1026, in _send_output

self.send(msg)

File "/opt/python/python3.6.6/lib/python3.6/http/client.py", line 964, in send

self.connect()

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/connection.py", line 181, in connect

conn = self._new_conn()

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/connection.py", line 168, in _new_conn

self, "Failed to establish a new connection: %s" % e)

urllib3.exceptions.NewConnectionError: : Failed to establish a new connection: [Errno -2] Name or service not known

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "/opt/python/python3.6.6/lib/python3.6/site-packages/requests/adapters.py", line 449, in send

timeout=timeout

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 638, in urlopen

_stacktrace=sys.exc_info()[2])

File "/opt/python/python3.6.6/lib/python3.6/site-packages/urllib3/util/retry.py", line 398, in increment

raise MaxRetryError(_pool, url, error or ResponseError(cause))

urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='server', port=80): Max retries exceeded with url: /?id=456 (Caused by NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "/opt/python/python3.6.6/lib/python3.6/threading.py", line 916, in _bootstrap_inner

self.run()

File "/opt/python/python3.6.6/lib/python3.6/threading.py", line 1182, in run

self.function(*self.args, **self.kwargs)

File "tmp.py", line 35, in responses_routine

headers=headers_json,

File "/opt/python/python3.6.6/lib/python3.6/site-packages/requests/api.py", line 116, in post

return request('post', url, data=data, json=json, **kwargs)

File "/opt/python/python3.6.6/lib/python3.6/site-packages/requests/api.py", line 60, in request

return session.request(method=method, url=url, **kwargs)

File "/opt/python/python3.6.6/lib/python3.6/site-packages/requests/sessions.py", line 533, in request

resp = self.send(prep, **send_kwargs)

File "/opt/python/python3.6.6/lib/python3.6/site-packages/requests/sessions.py", line 646, in send

r = adapter.send(request, **kwargs)

File "/opt/python/python3.6.6/lib/python3.6/site-packages/requests/adapters.py", line 516, in send

raise ConnectionError(e, request=request)

requests.exceptions.ConnectionError: HTTPConnectionPool(host='server', port=80): Max retries exceeded with url: /?id=456 (Caused by NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',))

它在Redhat 6.6上失败。 我正在使用带有请求2.22和响应0.10.6的Python 3.6.6(它在2.7中也失败，具有类似的堆栈)。

就像当主线程退出时，所有响应的 “句柄”都丢失了……有任何线索吗？