From owner-freebsd-bugs@freebsd.org Fri Nov 17 17:33:56 2017 Return-Path: Delivered-To: freebsd-bugs@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 59DFFDDF466 for ; Fri, 17 Nov 2017 17:33:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (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 483286E771 for ; Fri, 17 Nov 2017 17:33:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id vAHHXtOa001039 for ; Fri, 17 Nov 2017 17:33:56 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 178473] gmultipath(8) needs to be smarter about errors Date: Fri, 17 Nov 2017 17:33:55 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 10.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: rkunert@wisc.edu X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Nov 2017 17:33:56 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D178473 Richard Kunert changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rkunert@wisc.edu --- Comment #4 from Richard Kunert --- I think what is needed is a gmultipath equivalent to the no_path_retry sett= ing in DM Multipath on Linux, which allows specifying the number of retries bef= ore the queue is released and the I/O fails. I assume that would allow ZFS to realize that something is wrong. Retrying forever is not always a rational = or useful behavior. no_path_retry: A numeric value for this attribute specifies the number of times the system should attempt to use a failed path before disabling queuing. A value of fail indicates immediate failure, without queuing. A value of queue indicates that queuing should not stop until the path is fixed. I just set up a new FreeBSD server with dual HBAs, dual SAS expander backplanes, etc., using gmultipath. I am on the verge of migrating the serv= er to Ubuntu and ZFS on Linux just to avoid this issue - particularly seeing t= hat it was reported years ago and there has been no movement. --=20 You are receiving this mail because: You are the assignee for the bug.=