Charles-Francois Natali neolo...@free.fr added the comment:
As explained by Jean-Paul, it's due to the fact that the closed TCP sockets
spend some time in TIME-WAIT state before being deallocated.
On Linux, this issue can be more or less worked-around using sysctl
Alice Bevan-McGregor al...@gothcandy.com added the comment:
Agreed; I'm now certain it's a local tuning issue. My first attempt to alter
the file descriptor limits for local testing resulted in catastrophic system
failure, though, so I have no clue as to the correct method to alter the
Changes by Terry J. Reedy tjre...@udel.edu:
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nosy: -terry.reedy
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Python tracker rep...@bugs.python.org
http://bugs.python.org/issue8771
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Python-bugs-list
Terry J. Reedy tjre...@udel.edu added the comment:
This needs to be re-verified on a current version.
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nosy: +terry.reedy
versions: +Python 2.7, Python 3.2 -Python 2.5, Python 2.6
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Python tracker rep...@bugs.python.org
Jean-Paul Calderone exar...@twistedmatrix.com added the comment:
Have you looked at the number of TIME_WAIT sockets you have on the system when
your benchmark gets to the 16000 request mark?
This looks exactly like a regular TCP limitation to me. You'll find the limit
on any platform, not
New submission from Alice Bevan-McGregor al...@gothcandy.com:
Using the wsgiref simple HTTP server or any other capable of 2000
requests/sec. demonstrates an issue with Macintosh sockets.
Mac OS X Version: 10.6.3 (Build 10D573)
Python Version: 2.6.1 (32-bit)
The minimal application needed to
Alice Bevan-McGregor al...@gothcandy.com added the comment:
I can confirm this issue also effecting 2.5.4 on my Mac.
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versions: +Python 2.5
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Python tracker rep...@bugs.python.org
http://bugs.python.org/issue8771
R. David Murray rdmur...@bitdance.com added the comment:
Why do you think this is a bug in Python? I'm not yet saying it isn't, but
we'll need additional information to show that it is. Given that it works on
Linux, it seems like the most likely case would be that it is an issue with the
OS
Alice Bevan-McGregor al...@gothcandy.com added the comment:
Unfortunately, unless I can get instructions on how to properly diagnose socket
libraries, I've exhausted my ability to debug this. I used to be a C
programmer, but that was 12 years ago.
I'm hoping to a) confirm the problem exists
