Groups > comp.lang.python > #197011

Re: FileNotFoundError thrown due to file name in file, rather than file itself

From	Greg Ewing <greg.ewing@canterbury.ac.nz>
Newsgroups	comp.lang.python
Subject	Re: FileNotFoundError thrown due to file name in file, rather than file itself
Date	2024-11-13 14:04 +1300
Message-ID	<lpic93Fi985U1@mid.individual.net> (permalink)
References	(1 earlier) <CAJQBtg=UOiOmmHa25EUZtrZO19F1O0_VxCO6gWjZ5ebAMHnXCA@mail.gmail.com> <mailman.92.1731341107.4695.python-list@python.org> <875xosyfr0.fsf@zedat.fu-berlin.de> <CAJQBtg=nr+KC5iz_WY7nqkGK+YBEWAPq40ksaWJCAOT_+=pHxg@mail.gmail.com> <mailman.100.1731438669.4695.python-list@python.org>

Show all headers | View raw

On 13/11/24 8:10 am, Left Right wrote:
> since logs are designed to grow indefinitely, the natural
> response to this design property is log rotation.

I don't see how writing logs to stderr solves that problem in any way.
Whatever stderr is sent to still has a potentially unlimited amount
of data to deal with.

> But, it's
> impossible to reliably rotate a log file.  There's always a chance
> that during the rotation some log entries will be written to the file
> past the point of rotation, but prior to the point where the next logs
> volume starts.

Not sure I follow you there. You seem to be thinking of a particular
way of rotating log files, where an external process tries to swap
the program's log file out from under it without its knowledge. That
could be vulnerable to race conditions. But if the program doing the
logging handles the rotation itself, there's no reason it has to
lose data.

-- 
Greg

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

Thread

FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-11 15:05 +0100
  Re: FileNotFoundError thrown due to file name in file, rather than file itself Left Right <olegsivokon@gmail.com> - 2024-11-11 17:04 +0100
    Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-12 10:15 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Left Right <olegsivokon@gmail.com> - 2024-11-12 20:10 +0100
        Re: FileNotFoundError thrown due to file name in file, rather than file itself Greg Ewing <greg.ewing@canterbury.ac.nz> - 2024-11-13 14:04 +1300
          Re: FileNotFoundError thrown due to (Posting On Python-List Prohibited) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-13 02:13 +0000
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Mats Wichmann <mats@wichmann.us> - 2024-11-12 13:28 -0700
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Chris Angelico <rosuav@gmail.com> - 2024-11-13 07:34 +1100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-13 08:11 +0100
        Re: FileNotFoundError thrown due to file name in file, rather than file itself Barry <barry@barrys-emacs.org> - 2024-11-14 16:01 +0000
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Roel Schroeven <roel@roelschroeven.net> - 2024-11-13 10:12 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Michael Torrie <torriem@gmail.com> - 2024-11-13 21:07 -0700
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Left Right <olegsivokon@gmail.com> - 2024-11-14 08:03 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Chris Angelico <rosuav@gmail.com> - 2024-11-14 19:13 +1100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself D'Arcy Cain <darcy@VybeNetworks.com> - 2024-11-13 06:37 -0700
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Ethan Furman <ethan@stoneleaf.us> - 2024-11-14 09:32 -0800
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Michael Torrie <torriem@gmail.com> - 2024-11-14 08:44 -0700
        Re: FileNotFoundError thrown due to file name in file, rather than file itself Jon Ribbens <jon+usenet@unequivocal.eu> - 2024-11-14 18:12 +0000
  Re: FileNotFoundError thrown due to file name in file, rather than file itself dieter.maurer@online.de - 2024-11-11 18:24 +0100
  Re: FileNotFoundError thrown due to (Posting On Python-List Prohibited) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-11 21:05 +0000
  Re: FileNotFoundError thrown due to file name in file, rather than file itself Chris Angelico <rosuav@gmail.com> - 2024-11-12 12:17 +1100
    Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-12 10:00 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself dieter.maurer@online.de - 2024-11-13 19:36 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Kushal Kumaran <kushal@locationd.net> - 2024-11-13 14:40 -0800
    Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-12 10:03 +0100

csiph-web