From owner-freebsd-fs@freebsd.org Thu Jun 14 20:25:03 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 76AFE10013A0 for ; Thu, 14 Jun 2018 20:25:03 +0000 (UTC) (envelope-from Albert.Shih@obspm.fr) Received: from mx-p1.obspm.fr (mx-p1.obspm.fr [145.238.193.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "*.obspm.fr", Issuer "TERENA SSL CA 3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 08CC680001 for ; Thu, 14 Jun 2018 20:25:02 +0000 (UTC) (envelope-from Albert.Shih@obspm.fr) Received: from io.chezmoi.fr (vpn.obspm.fr [145.238.186.39]) (authenticated bits=0) by mx-p1.obspm.fr (8.14.4/8.14.4/DIO Observatoire de Paris - 15/04/10) with ESMTP id w5EKOqPZ045641 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 Jun 2018 22:24:55 +0200 Date: Thu, 14 Jun 2018 22:25:11 +0200 From: Albert Shih To: Mike Tancsa Cc: freebsd-fs@freebsd.org Subject: Re: ZFS send problem Message-ID: <20180614202511.GA2636@io.chezmoi.fr> References: <20180614175445.GA1781@io.chezmoi.fr> <5428a0a5-1bbf-80e5-16b2-992b10b0a20c@sentex.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5428a0a5-1bbf-80e5-16b2-992b10b0a20c@sentex.net> User-Agent: Mutt/1.10.0 (2018-05-17) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.11 (mx-p1.obspm.fr [145.238.193.20]); Thu, 14 Jun 2018 22:24:55 +0200 (CEST) X-Virus-Scanned: clamav-milter 0.99.3 at mx-p1.obspm.fr X-Virus-Status: Clean X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jun 2018 20:25:03 -0000 Le 14/06/2018 à 16:09:05-0400, Mike Tancsa a écrit > On 6/14/2018 1:54 PM, Albert Shih wrote: > > Hi, > > > > I still got a very serious problem with zfs send (not recv). > > > > If I set le vfs.zfs.arc_max at half of the RAM ( = 96Go) I can see thought > > zfs-stats the arc come to 100.3% and empty to 98-99% and raise again. > > Either way the zfs command not really freeze totally but take lot of time > > to answer (~10-20 seconds when normally it's < 1sec). > > What version of FreeBSD are you running ? Also, have you tried doing a FreeBSD 11.1-p10 (last one). > scrub on the pool to make sure there are no errors ? I take it zpool I do that now. > status shows all is ok ? Yes. > > Is this a straight up send or incremental ? Is it recursive or just part > of the pool ? Not sure because the problem is erratic but It seem I got much more problem with the straight up send, the incremental seem to work a little better. Knowing I don't get a big incremental (~100Mo-few Go). Thanks for your help. Regards. -- Albert SHIH DIO bâtiment 15 Observatoire de Paris xmpp: jas@obspm.fr Heure local/Local time: Thu Jun 14 22:22:29 CEST 2018