Re: Py2.7/FreeBSD: maximum number of open files

Path	csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!newsfeed.eweka.nl!eweka.nl!feeder3.eweka.nl!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path	<lists@cheimes.de>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.000
X-Spam-Evidence	'H': 1.00; 'S': 0.00; 'bug': 0.02; '2.7': 0.04; 'api.': 0.05; 'implements': 0.05; 'pointer': 0.05; 'python': 0.08; 'descriptor': 0.09; 'subject:files': 0.09; 'anyway': 0.09; 'api': 0.09; 'cc:addr:python-list': 0.15; 'abi': 0.16; 'descriptors.': 0.16; 'libc': 0.16; 'luckily': 0.16; 'open()': 0.16; 'pointers': 0.16; 'posix': 0.16; 'released.': 0.16; 'tobias': 0.16; "doesn't": 0.23; 'header:In-Reply-To:1': 0.23; 'library.': 0.24; 'cc:2**0': 0.25; 'guess': 0.25; '(in': 0.26; "i'm": 0.26; 'compile': 0.28; 'fix': 0.29; 'cc:addr:python.org': 0.29; '3.x': 0.30; 'subject:number': 0.30; 'thanks': 0.31; 'break': 0.32; "can't": 0.32; "won't": 0.32; "i've": 0.33; 'instead': 0.33; 'there': 0.33; 'header:User-Agent:1': 0.33; 'subject:/': 0.35; 'file': 0.36; '...': 0.36; 'but': 0.37; 'issue': 0.37; 'using': 0.37; 'received:org': 0.37; 'subject:: ': 0.39; 'schrieb': 0.84
Date	Mon, 14 Nov 2011 18:13:12 +0100
From	Christian Heimes <lists@cheimes.de>
User-Agent	Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1
MIME-Version	1.0
To	Tobias Oberstein <tobias.oberstein@tavendo.de>
Subject	Re: Py2.7/FreeBSD: maximum number of open files
References	<634914A010D0B943A035D226786325D42D0C264772@EXVMBX020-12.exch020.serverdata.net> <j9rfda$mfs$1@dough.gmane.org> <634914A010D0B943A035D226786325D42D0C2647C8@EXVMBX020-12.exch020.serverdata.net> <4EC1470B.90403@cheimes.de> <634914A010D0B943A035D226786325D42D0C2647EB@EXVMBX020-12.exch020.serverdata.net>
In-Reply-To	<634914A010D0B943A035D226786325D42D0C2647EB@EXVMBX020-12.exch020.serverdata.net>
X-Enigmail-Version	1.4a1pre
Content-Type	text/plain; charset=ISO-8859-1
Content-Transfer-Encoding	7bit
Cc	"python-list@python.org" <python-list@python.org>
X-BeenThere	python-list@python.org
X-Mailman-Version	2.1.12
Precedence	list
List-Id	General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe	<http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive	<http://mail.python.org/pipermail/python-list>
List-Post	<mailto:python-list@python.org>
List-Help	<mailto:python-list-request@python.org?subject=help>
List-Subscribe	<http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups	comp.lang.python
Message-ID	<mailman.2706.1321290793.27778.python-list@python.org> (permalink)
Lines	23
NNTP-Posting-Host	2001:888:2000:d::a6
X-Trace	1321290793 news.xs4all.nl 6909 [2001:888:2000:d::a6]:36850
X-Complaints-To	abuse@xs4all.nl
Xref	x330-a1.tempe.blueboxinc.net comp.lang.python:15678

Show key headers only | View raw

Am 14.11.2011 18:03, schrieb Tobias Oberstein:
> This is unbelievable.
> 
> I've just tested: the bug (in libc) is still there on FreeBSD 8.2 p3 ... both on i386
> _and_ amd64.
> 
> Now I'm f***d;(
> 
> A last chance: is it possible to compile Python for not using libc fopen(),
> but the Posix open()?
> 
> Thanks anyway for this hint!

A fix would break the ABI compatibility. I guess that you won't see a
fix for the issue until FreeBSD 9.0 is released.

And no, you can't re-compile Python to use the open() API instead of
fopen(). The built-in file type is developed around the file pointer
API, not the file descriptor API. Luckily Python 2.7 has a backport of
Python 3.x new IO library. The new IO API doesn't use file pointers at
all and implements its own layer around file descriptors. Good luck!

Christian

Back to comp.lang.python | Previous | Next | Find similar | Unroll thread

Thread

Re: Py2.7/FreeBSD: maximum number of open files Christian Heimes <lists@cheimes.de> - 2011-11-14 18:13 +0100

csiph-web