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[英]Differences between BaseHttpServer and wsgiref.simple_server
[英]Strange lag/latency/delay/whatever with wsgiref.simple_server after a couple of request
我有一個惱人的問題。 我有這個簡單的服務器代碼(讓我們說):
#!/usr/bin/env python3
import wsgiref.simple_server
def my_func(env, start_response):
start_response('200 OK', [])
return [''.encode()]
server = wsgiref.simple_server.make_server(
'0.0.0.0',
19891,
my_func,
)
server.serve_forever()
但是,5次嘗試中的1次(因此大約20%的請求)非常慢。 當我在這個巨大延遲到位時中斷服務器處理時,我總是得到以下異常:
Exception happened during processing of request from ('192.168.1.100', 3540)
Traceback (most recent call last):
File "/usr/lib/python3.5/socketserver.py", line 313, in _handle_request_noblock
self.process_request(request, client_address)
File "/usr/lib/python3.5/socketserver.py", line 341, in process_request
self.finish_request(request, client_address)
File "/usr/lib/python3.5/socketserver.py", line 354, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/lib/python3.5/socketserver.py", line 681, in __init__
self.handle()
File "/usr/lib/python3.5/wsgiref/simple_server.py", line 119, in handle
self.raw_requestline = self.rfile.readline(65537)
File "/usr/lib/python3.5/socket.py", line 575, in readinto
return self._sock.recv_into(b)
KeyboardInterrupt
你知道如何避免這種惱人的事情嗎? 或者這種行為背后的原因是什么?
Update1:我嘗試過修改simple_server.py - > WSGIServer-> server_bind函數的TCP_NODELAY,如下所示:
def server_bind(self):
"""Override server_bind to store the server name."""
import socket
self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY,1)
HTTPServer.server_bind(self)
self.setup_environ()
不幸的是沒有變化:(
您使用的是端口號3540,這是“TCP / UDP端口查找器”的默認端口。 您可以在操作系統上與另一個服務/守護程序發生端口沖突。
您可以更改為端口80,8000,8080 ...如果您需要Web服務器。
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