Great Circle Associates Majordomo-Users
(May 1997)
 

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Subject: Re: Possible race condition in Majordomo 1.94.1 causing bounces
From: Dave Wolfe <dwolfe @ risc . sps . mot . com>
Date: Thu, 1 May 1997 11:25:53 -0500 (CDT)
To: pettern @ thule . no (Petter Nilsen)
Cc: Majordomo-users @ GreatCircle . COM
In-reply-to: <881.7060T1079T178@thule.no> from "Petter Nilsen" at May 1, 97 05:59:03 pm
Reply-to: Dave Wolfe <david_wolfe @ risc . sps . mot . com>

[ Petter Nilsen writes: ]
> 
> In article <199705011522.KAA14948@miaow.risc.sps.mot.com>,
> dwolfe@risc.sps.mot.com (Dave Wolfe) wrote:
> 
> > It's true that there's no locking of the list between Mj and the MTA (do
> > any MTAs even attempt to lock included files?). In fact I noted this
> > awhile back (see the thread starting with:
> 
> Ok, I just joined this list yesterday.  Thanks for the patch, it should fix
> the problem although I still prefer a lock-file approach to solving this.
> IMHO, it would offer a more "clean" solution to this problem.

Since locks, particularly lock-file locks, are purely advisory on Unix
systems, such an approach would require the cooperation of all possible
MTAs, which seems unlikely considering approximately none of them know
or care about Mj in the first place. Why do you think that approach is
"cleaner" than never allowing the window in the first place? Obviously,
I disagree.

-- 
 Dave Wolfe


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