From: "David Schwartz" <davids@webmaster.com>
To: <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] Time-based RFC 4122 UUID generator
Date: Mon, 19 Nov 2007 13:56:04 -0800 [thread overview]
Message-ID: <MDEHLPKNGKAHNMBLJOLKCECCIFAC.davids@webmaster.com> (raw)
In-Reply-To: <fhqbkn$ttt$1@ger.gmane.org>
> > I use libuuid and I assume libuuid uses some uuid generator support
> > from the kernel.
>
> No, it does not. It's pure userspace and may produce double UUIDs.
>
> > libuuid comes from a package that Ted's maintain IIRC.
> >
> > I (my company) use uuid to uniquely identify objects in a distributed
> > database.
> > [Proprietary closed source stuff].
>
> Same here.
>
> Helge
Any UUID generator that can produce duplicate UUIDs with probability
significantly less than purely random UUIDs is so badly broken that it
should not ever be used. Anyone who finds such a UUID generator should
immediately either fix it or throw it on the junk heap. Anyone who knowingly
uses such a UUID generator should be publically shamed.
Rather than (or at the very least, in addition to) adding a new UUID
generator, let's fix the one(s) we have.
DS
next prev parent reply other threads:[~2007-11-19 21:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-18 19:38 Helge Deller
2007-11-18 21:05 ` Andrew Morton
2007-11-18 21:34 ` Sam Ravnborg
2007-11-18 21:43 ` Helge Deller
2007-11-19 21:56 ` David Schwartz [this message]
2007-11-19 22:58 ` Alan Cox
2007-11-20 6:44 ` H. Peter Anvin
2007-11-20 22:58 ` Helge Deller
2007-11-21 0:20 ` Alan Cox
2007-11-18 21:40 ` Helge Deller
2007-11-20 6:31 ` Matt Mackall
2007-11-20 21:59 ` Helge Deller
2007-11-20 22:55 ` Matt Mackall
2007-11-20 23:11 ` Helge Deller
2007-11-20 23:34 ` Matt Mackall
2007-11-20 23:00 ` Theodore Tso
2007-11-20 23:30 ` Helge Deller
2007-12-10 5:36 ` [e2fsprogs PATCH] Userspace solution to time-based UUID without duplicates Theodore Tso
2007-12-16 21:53 ` Helge Deller
2007-12-17 0:07 ` Theodore Tso
2007-11-20 6:15 ` [PATCH] Time-based RFC 4122 UUID generator Andrew Morton
2007-11-20 22:40 ` Helge Deller
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