From: Chris Mason <mason@suse.com>
To: "Patrick J. LoPresti" <patl@curl.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [ANNOUNCE] Ext3 vs Reiserfs benchmarks
Date: 15 Jul 2002 17:14:36 -0400 [thread overview]
Message-ID: <1026767676.4751.499.camel@tiny> (raw)
In-Reply-To: <s5gsn2kst2j.fsf@egghead.curl.com>
On Mon, 2002-07-15 at 15:13, Patrick J. LoPresti wrote:
> > 1) that newly grown file is someone's inbox, and the old contents of the
> > new block include someone else's private message.
> >
> > 2) That newly grown file is a control file for the application, and the
> > application expects it to contain valid data within (think sendmail).
>
> In a correctly-written application, neither of these things can
> happen. (See my earlier message today on fsync() and MTAs.) To get a
> file onto disk reliably, the application must 1) flush the data, and
> then 2) flush a "validity" indicator. This could be a sequence like:
>
> create temp file
> flush data to temp file
> rename temp file
> flush rename operation
Yes, most mtas do this for queue files, I'm not sure how many do it for
the actual spool file. mail server authors are more than welcome to
recommend the best safety/performance combo for their product, and to
ask the FS guys which combinations are safe.
-chris
next prev parent reply other threads:[~2002-07-15 21:11 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20020712162306$aa7d@traf.lcs.mit.edu>
[not found] ` <mit.lcs.mail.linux-kernel/20020712162306$aa7d@traf.lcs.mit.edu>
2002-07-15 15:22 ` [ANNOUNCE] Ext3 vs Reiserfs benchmarks Patrick J. LoPresti
2002-07-15 17:31 ` Chris Mason
2002-07-15 18:33 ` Matthias Andree
[not found] ` <20020715173337$acad@traf.lcs.mit.edu>
[not found] ` <mit.lcs.mail.linux-kernel/20020715173337$acad@traf.lcs.mit.edu>
2002-07-15 19:13 ` Patrick J. LoPresti
2002-07-15 20:55 ` Matthias Andree
2002-07-15 21:23 ` Patrick J. LoPresti
2002-07-15 21:38 ` Thunder from the hill
2002-07-16 12:31 ` Matthias Andree
2002-07-16 15:53 ` Thunder from the hill
2002-07-16 19:26 ` Matthias Andree
2002-07-16 19:38 ` Thunder from the hill
2002-07-16 23:22 ` close return value (was Re: [ANNOUNCE] Ext3 vs Reiserfs benchmarks) Zack Weinberg
2002-07-17 1:03 ` Alan Cox
2002-07-16 23:52 ` close return value David S. Miller
2002-07-17 1:35 ` Alan Cox
2002-07-17 0:20 ` David S. Miller
2002-07-17 1:05 ` Linus Torvalds
2002-07-17 1:05 ` David S. Miller
2002-07-17 1:23 ` Linus Torvalds
2002-07-17 11:51 ` Matthias Andree
2002-07-17 17:23 ` Andries Brouwer
2002-07-20 8:00 ` Florian Weimer
2002-07-20 16:45 ` Linus Torvalds
2002-07-26 0:06 ` EFAULT vs. SIGSEGV [was Re: close return value] Pavel Machek
2002-07-26 14:01 ` (no subject) Alexis Deruelle
[not found] ` <mailman.1026868201.10433.linux-kernel2news@redhat.com>
2002-07-18 0:01 ` close return value Pete Zaitcev
2002-07-18 0:10 ` Thunder from the hill
[not found] ` <mit.lcs.mail.linux-kernel/200207180001.g6I015f02681@devserv.devel.redhat.com>
2002-07-18 14:42 ` Patrick J. LoPresti
2002-07-18 15:13 ` Richard B. Johnson
2002-07-18 15:32 ` Sandy Harris
2002-07-18 23:47 ` Albert D. Cahalan
2002-07-19 16:12 ` Patrick J. LoPresti
2002-07-19 16:24 ` Joseph Malicki
2002-07-19 18:48 ` Patrick J. LoPresti
2002-07-19 19:25 ` Lars Marowsky-Bree
2002-07-19 19:30 ` Arnaldo Carvalho de Melo
2002-07-19 19:45 ` Joseph Malicki
2002-07-19 19:55 ` Arnaldo Carvalho de Melo
2002-07-20 18:25 ` Bernd Eckenfels
2002-07-20 23:06 ` Sandy Harris
2002-07-20 14:42 ` Andries Brouwer
2002-07-18 20:09 ` Hildo.Biersma
2002-07-18 23:55 ` Pete Zaitcev
2002-07-19 11:31 ` Hildo.Biersma
2002-07-19 16:16 ` Pete Zaitcev
2002-07-23 22:19 ` Bill Davidsen
2002-07-17 0:10 ` close return value (was Re: [ANNOUNCE] Ext3 vs Reiserfs benchmarks) Zack Weinberg
2002-07-17 1:45 ` Alan Cox
2002-07-17 18:24 ` Zack Weinberg
2002-07-22 16:42 ` Rogier Wolff
2002-07-17 8:00 ` Lars Marowsky-Bree
2002-07-17 15:49 ` Thunder from the hill
2002-07-17 2:22 ` Elladan
2002-07-17 2:54 ` Thunder from the hill
2002-07-17 3:00 ` Elladan
2002-07-17 3:10 ` Thunder from the hill
2002-07-17 3:31 ` Elladan
2002-07-17 4:17 ` Stevie O
2002-07-17 4:38 ` Elladan
2002-07-17 14:39 ` Andreas Schwab
2002-07-17 16:49 ` Elladan
2002-07-17 17:43 ` Linus Torvalds
2002-07-17 22:07 ` Elladan
2002-07-18 9:48 ` Ketil Froyn
2002-07-17 17:17 ` Andries Brouwer
2002-07-17 17:51 ` Richard Gooch
2002-07-17 7:34 ` close return value (was Re: [ANNOUNCE] Ext3 vs Reiserfs benchmarks Kai Henningsen
2002-07-15 21:59 ` Ketil Froyn
2002-07-15 23:08 ` Matti Aarnio
2002-07-16 12:33 ` Matthias Andree
2002-07-15 22:55 ` Alan Cox
2002-07-15 21:58 ` Matthias Andree
2002-07-15 21:14 ` Chris Mason [this message]
2002-07-15 21:31 ` Patrick J. LoPresti
2002-07-15 22:12 ` Richard A Nelson
2002-07-16 1:02 ` Lawrence Greenfield
[not found] ` <mit.lcs.mail.linux-kernel/200207160102.g6G12BiH022986@lin2.andrew.cmu.edu>
2002-07-16 1:43 ` Patrick J. LoPresti
2002-07-16 1:56 ` Thunder from the hill
2002-07-16 12:47 ` Matthias Andree
2002-07-16 21:09 ` James Antill
2002-07-16 12:35 ` Matthias Andree
2002-07-16 7:07 ` Dax Kelson
2002-07-12 16:21 Dax Kelson
2002-07-12 17:05 ` Andreas Dilger
2002-07-12 17:26 ` kwijibo
2002-07-12 17:36 ` Andreas Dilger
2002-07-12 20:34 ` Chris Mason
2002-07-13 4:44 ` Daniel Phillips
2002-07-14 20:40 ` Dax Kelson
2002-07-15 8:26 ` Sam Vilain
2002-07-15 12:30 ` Alan Cox
2002-07-15 12:02 ` Sam Vilain
2002-07-15 13:23 ` Alan Cox
2002-07-15 13:40 ` Chris Mason
2002-07-15 19:40 ` Andrew Morton
2002-07-15 15:12 ` Andrea Arcangeli
2002-07-15 16:03 ` Andreas Dilger
2002-07-15 16:12 ` Daniel Phillips
2002-07-15 17:48 ` Sam Vilain
2002-07-15 18:47 ` Mathieu Chouquet-Stringer
2002-07-15 19:26 ` Sam Vilain
2002-07-16 8:18 ` Stelian Pop
2002-07-16 12:22 ` Gerhard Mack
2002-07-16 12:49 ` Stelian Pop
2002-07-16 15:11 ` Gerhard Mack
2002-07-16 15:22 ` Andrea Arcangeli
2002-07-16 15:39 ` Stelian Pop
2002-07-16 19:45 ` Matthias Andree
2002-07-16 20:04 ` Shawn
2002-07-16 20:11 ` Mathieu Chouquet-Stringer
2002-07-16 20:22 ` Shawn
2002-07-16 20:27 ` Mathieu Chouquet-Stringer
2002-07-17 11:45 ` Matthias Andree
2002-07-17 19:02 ` Andreas Dilger
2002-07-18 9:29 ` Matthias Andree
2002-07-19 8:29 ` Matthias Andree
2002-07-19 16:39 ` Andreas Dilger
2002-07-19 20:01 ` Shawn
2002-07-19 20:47 ` Andreas Dilger
2002-07-15 21:14 ` Andreas Dilger
2002-07-17 18:41 ` bill davidsen
2002-07-16 8:15 ` Stelian Pop
2002-07-16 12:27 ` Matthias Andree
2002-07-16 12:43 ` Stelian Pop
2002-07-16 12:53 ` Matthias Andree
2002-07-16 13:05 ` Christoph Hellwig
2002-07-16 19:38 ` Matthias Andree
2002-07-16 19:49 ` Andreas Dilger
2002-07-16 20:11 ` Thunder from the hill
2002-07-16 21:06 ` Matthias Andree
2002-07-16 21:23 ` Andreas Dilger
2002-07-16 21:38 ` Thunder from the hill
2002-07-17 11:47 ` Matthias Andree
2002-07-18 14:50 ` Bill Davidsen
2002-07-18 15:09 ` Rik van Riel
2002-07-17 18:51 ` bill davidsen
2002-07-18 9:32 ` Matthias Andree
2002-07-15 12:09 ` Matti Aarnio
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1026767676.4751.499.camel@tiny \
--to=mason@suse.com \
--cc=linux-kernel@vger.kernel.org \
--cc=patl@curl.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).