Question

我正在尝试编写一个包含多个进程的python代码，其结构和流程是这样的：

import multiprocessing
import ctypes
import time
import errno
m=multiprocessing.Manager()
mylist=m.list()
var1=m.Value('i',0)
var2=m.Value('i',1)
var3=m.Value('i',2)
var4=m.Value(ctypes.c_char_p,"a")
var5=m.Value(ctypes.c_char_p,"b")
var6=3
var7=4
var8=5
var9=6
var10=7
def func(var1,var2,var4,var5,mylist):
    i=0
    try:
        if var1.value==0:
            print var2.value,var4.value,var5.value
            mylist.append(time.time())
        elif var1.value==1:
            i=i+2
            print var2.value+2,var4.value,var5.value
            mylist.append(time.time())
    except IOError as e:
        if e.errno==errno.EPIPE:
            var3.value=var3.value+1
            print "Error"
def work():
    for i in range(var3.value):
        print i,var6,var7,va8,var9,var10
        p=multiprocessing.Process(target=func,args=(var1,var2,var4,var5,mylist))
        p.start()
work()

当我运行此代码时，有时它可以正常工作，有时它不会针对精确的循环计数运行，有时我会遇到以下错误：

0
1
Process Process-2:
Traceback (most recent call last):
  File "/usr/lib64/python2.6/multiprocessing/process.py", line 232, in _bootstrap
    self.run()
  File "/usr/lib64/python2.6/multiprocessing/process.py", line 88, in run
    self._target(*self._args, **self._kwargs)
  File "dummy.py", line 19, in func
    if var1.value==0:
  File "/usr/lib64/python2.6/multiprocessing/managers.py", line 1005, in get
    return self._callmethod('get')
  File "/usr/lib64/python2.6/multiprocessing/managers.py", line 722, in _callmethod
    self._connect()
  File "/usr/lib64/python2.6/multiprocessing/managers.py", line 709, in _connect
    conn = self._Client(self._token.address, authkey=self._authkey)
  File "/usr/lib64/python2.6/multiprocessing/connection.py", line 149, in Client
    answer_challenge(c, authkey)
  File "/usr/lib64/python2.6/multiprocessing/connection.py", line 383, in answer_challenge
    message = connection.recv_bytes(256)         # reject large message
EOFError

这个错误是什么意思？我在这做什么错？这个错误表明了什么？请引导我走正确的道路。我正在使用CentOS 6.5。我也在堆栈溢出here中提出了同样的问题，但没有得到任何令人满意的解决方案

Python多处理过程出错

0 个答案: