From owner-freebsd-fs@freebsd.org Tue Aug 30 17:40:45 2016 Return-Path: Delivered-To: freebsd-fs@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 0BC5EBC9595 for ; Tue, 30 Aug 2016 17:40:45 +0000 (UTC) (envelope-from wjw@digiware.nl) Received: from smtp.digiware.nl (gtw.digiware.nl [IPv6:2001:4cb8:90:ffff::3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C8F07C9C; Tue, 30 Aug 2016 17:40:44 +0000 (UTC) (envelope-from wjw@digiware.nl) Received: from router.digiware.nl (localhost.digiware.nl [127.0.0.1]) by smtp.digiware.nl (Postfix) with ESMTP id 52398261DA; Tue, 30 Aug 2016 19:40:40 +0200 (CEST) X-Virus-Scanned: amavisd-new at digiware.com Received: from smtp.digiware.nl ([127.0.0.1]) by router.digiware.nl (router.digiware.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tZ0sxkzAAXPu; Tue, 30 Aug 2016 19:40:39 +0200 (CEST) Received: from [192.168.10.10] (asus [192.168.10.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.digiware.nl (Postfix) with ESMTPSA id 65AE9261D9; Tue, 30 Aug 2016 19:40:39 +0200 (CEST) Subject: Re: ZFS + NFS + multiple hosts/mount options ..? To: lev@FreeBSD.org, Julien Cigar , freebsd-fs@freebsd.org References: <20160829211001.GI1779@mordor.lan> <7a508630-3bcc-2e3d-a78e-8d5e0675ab85@FreeBSD.org> <5aee018f-51aa-2aeb-0964-7bfc88b7bf54@FreeBSD.org> From: Willem Jan Withagen Message-ID: Date: Tue, 30 Aug 2016 19:40:37 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <5aee018f-51aa-2aeb-0964-7bfc88b7bf54@FreeBSD.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Aug 2016 17:40:45 -0000 On 30-8-2016 18:46, Lev Serebryakov wrote: > On 30.08.2016 18:31, Willem Jan Withagen wrote: > >>>> Is there a way through the zfs set sharenfs="..." property to share >>>> data/somefs readonly to host "dev.lan" _and_ read/write to host >>>> "duvel.prod.lan" ? Or should I just set sharenfs="off" and use >>>> /etc/exports (I'm using NFS4) ? It seems impossible to have multiple >>>> hosts/options/... when the sharenfs property is used .. >>> No luck here. I've raised this question multiple times withoput any >>> reaction. Here is (very old) PRs with patch, which implements this: >>> >>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=147881 >>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202820 >>> >> >> I'd say, forget about getting any flexible through sharenfs. > WHY?! > >> Did that discussion about 3 years ago, and it boiled down. Don't dare to > I don't see any good reason to not support this, aside "It will not be > compatible with Illumos". I don't buy this, sorry. Any other reasons? > >> change it because the people doing ZFS don't like it. > There is one BIG problem: deep ZFS hierarchies. If I need to export 100 > FSes (100 users' home directories, for example) in one ZFS tree to 4 > networks (2xIPv4, 2xIPv6) I need to add 400 (!!!) lines to /etc/exports > by hands. All these lines will be virtually the same, and good luck to > maintain this mess. > > If "sharenfs" supports multiple hosts/networks, I need to set this > property ONCE (on zpool/home, parent of all FSes in question) and IT'S > ALL! And if I need to change same options, I need to change it ONCE and > re-export ZFS. > > Unfortunately, it is NOT enough to export parent FS :( Hi Lev, I agree with you More or less the arguments I had at that time. (though I don't have that many FSes.) And I gave up. Perhaps that tells more about me than anything else. The discussion I tried to have was cut short with the argument that it would not go in because upstream would not like it, or would not want in the version I submitted. But please do feel free and get something in that would please more. --WjW