From owner-freebsd-hackers@freebsd.org Mon May 22 14:09:56 2017 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 643C8D78220 for ; Mon, 22 May 2017 14:09:56 +0000 (UTC) (envelope-from asomers@gmail.com) Received: from mail-yw0-x22b.google.com (mail-yw0-x22b.google.com [IPv6:2607:f8b0:4002:c05::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 16FFC16F0 for ; Mon, 22 May 2017 14:09:56 +0000 (UTC) (envelope-from asomers@gmail.com) Received: by mail-yw0-x22b.google.com with SMTP id b68so60299027ywe.3 for ; Mon, 22 May 2017 07:09:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=Hh/sJI4i1lmAJygdR6tM0Inj2bW10X/U0+DhN1HckBE=; b=Y7PATuCHpLyoxADfWNu+OLgsMdGxJvRmHV4nRrEq30+r9IaacTFhk+PM1HC/3Vil/+ bziEeZ6txoMI3Q1o7OntTCnN414WiVnHP+TancpeGQLgdygF8pdII92ViayG0BwPId0Y 8+3r79wNaxdkLD61V6PQ6E6LpQ3ULy7rTBzXuSFSUEAXERIziA/cZIaQFcDXvFiO7M5f NzSaDiV5L6l0+1dZ5cbuoceBnz1PzukPQWZNiDEYCNk9qGcjNuUhaidpmTDcAkaCwltG WbSSa3nALpzdRi0V5iMIDkIvlFQ8iL0gG4boAMV0RbugI/d/GDcmVr9KCWHn7h55s85p QhTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=Hh/sJI4i1lmAJygdR6tM0Inj2bW10X/U0+DhN1HckBE=; b=fC3dQxKOwy7gj6OddXG67v0ykeiUZgww9YWb2may/INuW7fCeY8BaTPK7pG+gBaJPb q3g2iekc+fBvHie3lzrHZ4EDJ4d3X/LDKy2vicPgwnpPsUfAQrma7bra4ghR+hJBmW4m DuDDWun958Wvpa/SKPOz+E9x/hVepmTAUyhcNR14rsy4b8w01RaK2K4LBSygjDIE6AGQ tA256wjdkumqP5Hc8aKwbxVH3tLyEEsP/YvTYnGIfEIgzcgqNcMZTHNOJE9q6AanIJmA raL4OsNPIBShBBEvV37vJkJNRlRg3wKWExJtGxh78mzjqONPhuv5KmEUK+X09kwq1S1u gB0g== X-Gm-Message-State: AODbwcC/bmIqgrzkAfEStxdxV4NcpwQnxIjGTKG8MY/Rnj68kDDjuvqc AxUZgimHLq0d+cFMKvtlS4Xm+IqEYg== X-Received: by 10.129.75.72 with SMTP id y69mr21531714ywa.123.1495462195121; Mon, 22 May 2017 07:09:55 -0700 (PDT) MIME-Version: 1.0 Sender: asomers@gmail.com Received: by 10.13.206.199 with HTTP; Mon, 22 May 2017 07:09:54 -0700 (PDT) In-Reply-To: <20170522143102.70035d8d@gumby.homeunix.com> References: <20170522125307.76c9de6d@gumby.homeunix.com> <1104C7A7-5893-4602-9E34-5C212D987DAE@webweaving.org> <20170522143102.70035d8d@gumby.homeunix.com> From: Alan Somers Date: Mon, 22 May 2017 08:09:54 -0600 X-Google-Sender-Auth: qQHaHQC7jHM553ckWfpagrGumk8 Message-ID: Subject: Re: anti-dog-piling and ntpd leap files To: RW Cc: "freebsd-hackers@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 May 2017 14:09:56 -0000 On Mon, May 22, 2017 at 7:31 AM, RW via freebsd-hackers wrote: > On Mon, 22 May 2017 07:04:27 -0600 > Alan Somers wrote: > > >> >>> Just wondering - how is the new ntpd leapfile fetching supposed to >> >>> work. I spot a dead normal entry: > >> >> BTW, in 11.1 the sleeps will all be < 1 hour and they won't be >> backgrounded anymore. > > That doesn't sound like a good idea. If they aren't backgrounded > they'll block the rest of periodic daily for up to an hour. Not much of > a problem on a server, but it would be when periodic is run from anacron > at boot time. Actually, there are already many periodic scripts from ports that include foreground sleeps, mostly notably 410.pkg-audit. Do those cause problems for anacron? I wouldn't think so, because anacron knows to restart a job that didn't complete the last time it was run.