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Created on 2011-01-24 10:51 by tanakorn, last changed 2022-04-11 14:57 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| ssl.py.patch | tanakorn, 2011-01-24 10:51 | ssl.py patch for SSLSocket close method | ||
| zombiesocket.py | tanakorn, 2011-01-24 12:47 | test case file | ||
| Messages (7) | |||
|---|---|---|---|
| msg126919 - (view) | Author: Tanakorn Leesatapornwongsa (tanakorn) | Date: 2011-01-24 10:51 | |
With this code on python 2.6, I found that HTTPSConnection does not close connection properly.
from httplib import HTTPSConnection
for i in range(1000):
https = HTTPSConnection("google.com")
https.connect()
https.request("GET", "/")
response = https.getresponse()
response.close()
https.close()
print i
After searching python library, I guess that in ssl.py, implementation of close() method of SSLSocket is wrong.
socket.close(self) should not be called when self._makefile_refs < 1 but should be call when self._makefile_refs == 1, isn't it?
I modified the code, made the patch and attached it with this issue.
|
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| msg126922 - (view) | Author: Senthil Kumaran (orsenthil) *  |
Date: 2011-01-24 11:59 | |
Can you provide a test case which actually illustrates that zombie socket connections present after the HTTPS Connection and Close? I see the logic in your patch. But I don't see no left over unclosed connections upon ssl.close either. |
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| msg126923 - (view) | Author: Tanakorn Leesatapornwongsa (tanakorn) | Date: 2011-01-24 12:47 | |
I ran this attached file on my FreeBSD. After it printed "loop finished", I ran command `sockstat | grep python` and it showed korn python 58627 3 tcp4 10.0.2.15:28858 64.233.183.99:443 korn python 58627 4 tcp4 10.0.2.15:23579 64.233.183.147:443 korn python 58627 5 tcp4 10.0.2.15:52398 64.233.183.106:443 korn python 58627 6 tcp4 10.0.2.15:18764 64.233.183.105:443 korn python 58627 7 tcp4 10.0.2.15:46159 64.233.183.104:443 korn python 58627 8 tcp4 10.0.2.15:36906 64.233.183.103:443 korn python 58627 9 tcp4 10.0.2.15:45537 64.233.183.99:443 korn python 58627 10 tcp4 10.0.2.15:24578 64.233.183.103:443 korn python 58627 11 tcp4 10.0.2.15:26374 64.233.183.147:443 korn python 58627 12 tcp4 10.0.2.15:57399 64.233.183.106:443 korn python 58627 13 tcp4 10.0.2.15:12670 64.233.183.105:443 korn python 58627 14 tcp4 10.0.2.15:56306 64.233.183.104:443 korn python 58627 15 tcp4 10.0.2.15:42741 64.233.183.103:443 korn python 58627 16 tcp4 10.0.2.15:16112 64.233.183.99:443 korn python 58627 17 tcp4 10.0.2.15:25839 64.233.183.147:443 korn python 58627 18 tcp4 10.0.2.15:59310 64.233.183.106:443 korn python 58627 19 tcp4 10.0.2.15:35349 64.233.183.105:443 korn python 58627 20 tcp4 10.0.2.15:31881 64.233.183.104:443 korn python 58627 21 tcp4 10.0.2.15:21328 64.233.183.103:443 korn python 58627 22 tcp4 10.0.2.15:61880 64.233.183.99:443 korn python 58627 23 tcp4 10.0.2.15:47151 64.233.183.147:443 korn python 58627 24 tcp4 10.0.2.15:12796 64.233.183.106:443 korn python 58627 25 tcp4 10.0.2.15:57142 64.233.183.105:443 korn python 58627 26 tcp4 10.0.2.15:17930 64.233.183.104:443 korn python 58627 27 tcp4 10.0.2.15:13166 64.233.183.103:443 korn python 58627 28 tcp4 10.0.2.15:43557 64.233.183.99:443 korn python 58627 29 tcp4 10.0.2.15:39800 64.233.183.147:443 korn python 58627 30 tcp4 10.0.2.15:17364 64.233.183.106:443 korn python 58627 31 tcp4 10.0.2.15:50822 64.233.183.105:443 korn python 58627 32 tcp4 10.0.2.15:59156 64.233.183.104:443 korn python 58627 33 tcp4 10.0.2.15:41756 64.233.183.103:443 korn python 58627 34 tcp4 10.0.2.15:18008 64.233.183.99:443 korn python 58627 35 tcp4 10.0.2.15:44461 64.233.183.147:443 This should not be happend because I call https.close() in every loop iteration. And after I killed this python process, `sockstat | grep python` did not show anything. Is this test case that you want? |
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| msg126924 - (view) | Author: Antoine Pitrou (pitrou) * |
Date: 2011-01-24 12:56 | |
Can you try with either 2.6.6 or 2.7.1? |
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| msg126932 - (view) | Author: Senthil Kumaran (orsenthil) * |
Date: 2011-01-24 17:00 | |
I think, we are facing a platform specific bug here. I had tried similar program earlier and I tried your attached snippet with python 2.6.6 and release27-maint branch and I dont see the zombie sockets on Ubuntu 10.10. |
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| msg126933 - (view) | Author: Antoine Pitrou (pitrou) * |
Date: 2011-01-24 17:02 | |
Rather than labelling it a platform-specific issue, I'd like the OP to test with the latest bugfix releases (2.6.6 and 2.7.1). Some things have definitely been fixed recently. |
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| msg126991 - (view) | Author: Tanakorn Leesatapornwongsa (tanakorn) | Date: 2011-01-25 07:07 | |
I have tested it on python 2.7.1 already. It quite works. Thank you. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:11 | admin | set | github: 55202 |
| 2011-01-25 07:08:19 | tanakorn | set | status: open -> closed nosy: orsenthil, pitrou, dstanek, tanakorn resolution: fixed |
| 2011-01-25 07:07:32 | tanakorn | set | nosy:
orsenthil, pitrou, dstanek, tanakorn messages: + msg126991 |
| 2011-01-24 17:02:08 | pitrou | set | nosy:
orsenthil, pitrou, dstanek, tanakorn messages: + msg126933 |
| 2011-01-24 17:00:07 | orsenthil | set | nosy:
orsenthil, pitrou, dstanek, tanakorn messages: + msg126932 |
| 2011-01-24 15:37:37 | dstanek | set | nosy:
+ dstanek |
| 2011-01-24 12:56:22 | pitrou | set | nosy:
+ pitrou messages: + msg126924 |
| 2011-01-24 12:47:28 | tanakorn | set | files:
+ zombiesocket.py messages: + msg126923 |
| 2011-01-24 11:59:31 | orsenthil | set | files: - unnamed |
| 2011-01-24 11:59:04 | orsenthil | set | files:
+ unnamed messages: + msg126922 nosy: + orsenthil |
| 2011-01-24 10:51:43 | tanakorn | create | |