考虑以下代码:
import socket
store = []
scount = 0
while True:
scount+=1
print "Creating socket %d" % (scount)
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
store.append(s)
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给出以下结果:
Creating socket 1
Creating socket 2
...
Creating socket 253
Creating socket 254
Traceback (most recent call last):
File "test_sockets.py", line 9, in <module>
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/socket.py", line 159, in __init__
socket.error: (24, 'Too many open files')
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检查sysctl允许的打开文件数量给出:
$ sysctl -A |grep maxfiles
kern.maxfiles = 12288
kern.maxfilesperproc = 10240
kern.maxfiles: 12288
kern.maxfilesperproc: 10240
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这比我能成功打开的253个插座要多......
有人可以帮助我将这个数字提高到500以上吗?我试图使用真正的套接字(要求)模拟对等网络,每个只有50个模拟节点和5个传出连接和5个传入连接,将给出500个所需套接字的数量.
顺便说一句,在Linux下运行相同的代码给了我大约1020个套接字,这更像我喜欢的方式.