From owner-freebsd-hackers Wed Jan 3 4:23:35 2001 From owner-freebsd-hackers@FreeBSD.ORG Wed Jan 3 04:23:30 2001 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mail.wgate.com (mail.wgate.com [38.219.83.4]) by hub.freebsd.org (Postfix) with ESMTP id A2B3F37B400 for ; Wed, 3 Jan 2001 04:23:20 -0800 (PST) Received: from way95.eng.tvol.net ([10.32.1.145]) by mail.wgate.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2650.21) id YMS254B2; Wed, 3 Jan 2001 07:23:25 -0500 Received: from kway by way95.eng.tvol.net with local (Exim 3.20 #1 (Debian)) id 14Dmwp-0004r0-00; Wed, 03 Jan 2001 07:23:19 -0500 Date: Wed, 3 Jan 2001 07:23:19 -0500 From: Kevin Way To: Gerhard Sittig Cc: freebsd-hackers@freebsd.org Subject: Re: how to test out cron.c changes? (was: cvs commit: src/etc crontab) Message-ID: <20010103072319.B18615@way95.eng.tvol.net> References: <200011191816.KAA81473@freefall.freebsd.org> <20001119214008.Z27042@speedy.gsinet> <20001120143658.B4415@netmode.ece.ntua.gr> <20001120193326.C27042@speedy.gsinet> <20001205225656.Z27042@speedy.gsinet> <20001220211548.T253@speedy.gsinet> <3A513799.75EAB470@FreeBSD.org> <20010102133239.V253@speedy.gsinet> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="wac7ysb48OaltWcw" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010102133239.V253@speedy.gsinet>; from Gerhard.Sittig@gmx.net on Tue, Jan 02, 2001 at 01:32:39PM +0100 Organization: WorldGate Communications [www.wgate.com] Sender: Kevin Way Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG --wac7ysb48OaltWcw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I like these changes. I'm definitely in favor of code that corrects for the DST handling=20 oddities that sysadmins have to deal with. This would be especially=20 valuable for companies which might have deployments in 25 different=20 time zones globally, which for reasons that are out of scope can't be converted to UTC. The argument that the sysadmin should know the=20 results of putting a cronjob at a certain time become much weaker in=20 that scenario. =20 Additionally, the fact of the matter is that most DST crossovers occur during low-usage periods for typical servers. Given a choice of performing resource-intensive daily chores at a time of low usage, or wasting three hours each night, because twice a year there's a clock jump, I'll take the fully utilized server please. The one thing that has me giving some amount of hesitation, though=20 it's trivial, is the fact that this patch is based solely on clock skew. My initial reaction is that I'd like the patch to check if the skew has been caused by a time zone shift, though honestly, I can't think of another scenario where a properly running server's clock would jump. I'll gladly retract my endorsement of this type of change if somebody can note scenarios where this could have negative effects equal to or greater than the negative effects of the current system. --=20 kevin way worldgate communications software engineer +1 215 354 5287 --wac7ysb48OaltWcw Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6Uxm3kHXCCwlJQwURAgneAJ4yMSejmX9z4vm4hMJM4wgi5VHxqwCcDs34 n+E9QS5RtneoCc9VM9BPTqA= =MGll -----END PGP SIGNATURE----- --wac7ysb48OaltWcw-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message