Re: Avoiding competing process (was Re: indexes)

From: Kent Landfield <kent_at_hypermail-project.org>
Date: Wed, 7 Oct 1998 13:52:39 -0500 (CDT)
Message-Id: <199810071852.NAA21475_at_landfield.com>

# Byron C. Darrah <bdarr_at_sse.FU.HAC.COM> wrote:

# > For example, what I do at my site (and I would not be surprised to learn
# > that a lot of other people do too) is direct incoming mail for an archive
# > to an mbox file instead of piping it to hypermail. Then, at periodic
# > intervals a cron job runs a Makefile that runs hypermail if and only
# > if there are any new messages to be added to the archive.
# >
# > Of course, you would set the cron job's period to something greater than
# > the amount of time it takes for your computer to update the hypermail
# > archive to gurantee that two hypermail processes wont compete.

The latest version I'm cleaning up now has locking in it to avoid the timing problems associated with very busy lists. This is an FYI since Byron's use of make is very appropriate for very high traffic lists. I have found that for those types of lists, running hypermail hourly is much more "system friendly" and most list users don't care as long as it gets there in a reasonable fashion.  

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Kent Landfield                        Phone: 1-817-545-2502             
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Received on Wed 07 Oct 1998 08:52:58 PM GMT