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From: prj@po.cwru.edu (Paul Jarc)
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Subject: Re: maildir in Gnus vs. clock corrections and PID recycling
Date: Sun, 19 Jan 2003 19:58:50 -0500
Organization: What did you have in mind?  A short, blunt, human pyramid?
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Matthias Andree <ma@dt.e-technik.uni-dortmund.de> wrote:
> It seems that Postfix, Courier and Maildrop will settle on using the
> tmp/* file inode number for the <unique> part in new/, so these
> applications will rename from tmp/time.pid_count.hostname to
> new/time.inode.hostname.

What I saw in the qmail archives was new/time.inode.pid.hostname.
time.inode.hostname is extremely broken, and must not be used: there
might be two delivery programs running at once.  One might be an old
one using pid and the other might be a new one using inode.  If the
old one's pid is the same as the new one's inode, you can get a
collision.  So it should be <time>.i<inode>.<hostname> instead, to
ensure that it cannot be confused with the old format.  Please pass
this on to anyone who is planning to use <time>.<inode>.<hostname>.


paul