我正在运行massconnect.py模块以模拟打开许多并行的Web套接字连接，但是当我尝试打开15000个连接（在massconnect json中指定）一段时间后，我收到以下错误消息：< / p>
Unhandled Error
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\twisted\python\log.py", line 88, in callWithLogger
return callWithContext({"system": lp}, func, *args, **kw)
File "C:\Python27\lib\site-packages\twisted\python\log.py", line 73, in callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
File "C:\Python27\lib\site-packages\twisted\python\context.py", line 118, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "C:\Python27\lib\site-packages\twisted\python\context.py", line 81, in callWithContext
return func(*args,**kw)
--- <exception caught here> ---
File "C:\Python27\lib\site-packages\twisted\internet\iocpreactor\reactor.py", line 120, in _callEventCallback
evt.callback(rc, bytes, evt)
File "C:\Python27\lib\site-packages\twisted\internet\iocpreactor\tcp.py", line 285, in cbConnect
self.socket.setsockopt(
exceptions.AttributeError: 'Client' object has no attribute 'socket'
打开Web套接字连接被中断，我得到了这个例外。
我调整了massconnect.py模块以确认应用程序的Web套接字身份验证。我正在测试，以便每次分配客户端时都会发送一条唯一的身份验证消息。
我已经在注册表中将MaxUserPort设置为65534.我认为这个问题可能会导致内存不足，但在使用不同的机器检查后，我意识到这不是原因。
这可能是一个已知的python /扭曲问题吗？
@Glyph：
这是massconnect.py源代码：
'''
Created on Jan 29, 2013
@author: boro.petrovic
'''
###############################################################################
##
## Copyright 2011,2012 Tavendo GmbH
##
## Licensed under the Apache License, Version 2.0 (the "License");
## you may not use this file except in compliance with the License.
## You may obtain a copy of the License at
##
## http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
##
###############################################################################
import sys
import time
from twisted.internet import reactor
from twisted.internet import error
from twisted.internet.defer import Deferred, returnValue, inlineCallbacks
from twisted.internet.interfaces import IReactorTime
from autobahn.websocket import connectWS
from autobahn.websocket import WebSocketClientFactory, WebSocketClientProtocol
import time
f='start'
class MassConnectProtocol(WebSocketClientProtocol):
def sendHello(self, message):
#self.sendMessage("Hello from Python!")
self.sendMessage(payload=message)
#reactor.callLater(2, self.sendHello(message='test'))
def onOpen(self):
global f
wstoken = f.readline().rstrip()
message = 'messagecontent'+wstoken
self.factory.test.onConnected()
self.sendHello(message)
self.wstoken = wstoken
def onMessage(self, msg, binary):
print "Got message from wstoken " + self.wstoken + " :" + msg
class MassConnectFactory(WebSocketClientFactory):
def clientConnectionFailed(self, connector, reason):
if self.test.onFailed():
reactor.callLater(float(self.retrydelay)/1000., connector.connect)
def clientConnectionLost(self, connector, reason):
if self.test.onLost():
reactor.callLater(float(self.retrydelay)/1000., connector.connect)
class MassConnect:
def __init__(self, name, uri, connections, batchsize, batchdelay, retrydelay):
self.name = name
self.uri = uri
self.batchsize = batchsize
self.batchdelay = batchdelay
self.retrydelay = retrydelay
self.failed = 0
self.lost = 0
self.targetCnt = connections
self.currentCnt = 0
self.actual = 0
def run(self):
self.d = Deferred()
self.started = time.clock()
self.connectBunch()
return self.d
def onFailed(self):
self.failed += 1
return True
def onLost(self):
self.lost += 1
return True
def onConnected(self):
#sprint "connect"
self.actual += 1
if self.actual % self.batchsize == 0:
sys.stdout.write(".")
if self.actual == self.targetCnt:
self.ended = time.clock()
duration = self.ended - self.started
print " connected %d clients to %s at %s in %s seconds (retries %d = failed %d + lost %d)" % (self.currentCnt, self.name, self.uri, duration, self.failed + self.lost, self.failed, self.lost)
try:
reactor.run()
except twisted.internet.error.ReactorAlreadyRunning:
pass
result = {'name': self.name,
'uri': self.uri,
'connections': self.targetCnt,
'retries': self.failed + self.lost,
'lost': self.lost,
'failed': self.failed,
'duration': duration}
self.d.callback(result)
def connectBunch(self):
if self.currentCnt + self.batchsize < self.targetCnt:
c = self.batchsize
redo = True
else:
c = self.targetCnt - self.currentCnt
redo = False
for i in xrange(0, c):
factory = MassConnectFactory(self.uri, origin=None, protocols=[("myprotocol")])
factory.test = self
factory.retrydelay = self.retrydelay
factory.protocol = MassConnectProtocol
factory.setProtocolOptions(version=13)
factory.setSessionParameters(url="myurl", origin=None, protocols=["myprotocol"])
connectWS(factory)
self.currentCnt += 1
if redo:
reactor.callLater(float(self.batchdelay)/1000., self.connectBunch)
class MassConnectTest:
def __init__(self, spec):
global f
f = open("C:/tokens.txt", "r")
self.spec = spec
@inlineCallbacks
def run(self):
global f
res = []
for s in self.spec['servers']:
t = MassConnect(s['name'],
s['uri'],
self.spec['options']['connections'],
self.spec['options']['batchsize'],
self.spec['options']['batchdelay'],
self.spec['options']['retrydelay'])
r = yield t.run()
res.append(r)
returnValue(res)
f.close()
在脚本中，我用虚拟字符串替换机密数据。
来自token.txt文件我正在读取15000个用户中的每一个的身份验证令牌，我通过web-socket连接到测试中的应用程序。 这样我模拟了许多不同用户的连接，并为每个用户提供了有效的独立Web套接字连接。
不幸的是，我没有达到建立所有15000个连接的程度，因为在运行脚本（建立连接）时，我收到了未处理错误消息。
答案 0 :(得分：0)
如果您将massconnect.py缩减为won't work in IE9-会很有帮助。但是，如果问题仅在数千个并发连接的级别上出现，则可能是文件描述符不足（对不起，Twisted的错误信息不是很好）。
有关在操作系统中更改此参数的一些信息，请参阅SSCCE。