From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94404C169C4 for ; Fri, 8 Feb 2019 18:57:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 65C4A2177B for ; Fri, 8 Feb 2019 18:57:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="NMii35hm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726864AbfBHS5W (ORCPT ); Fri, 8 Feb 2019 13:57:22 -0500 Received: from mail-it1-f196.google.com ([209.85.166.196]:38335 "EHLO mail-it1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726747AbfBHS5W (ORCPT ); Fri, 8 Feb 2019 13:57:22 -0500 Received: by mail-it1-f196.google.com with SMTP id z20so11499719itc.3; Fri, 08 Feb 2019 10:57:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=/+XEXrpHdjeiKozFIidOEWIAKiHLAd/1csOs9KR6CUs=; b=NMii35hm9xcOORPknhA7/Wpr+Cdknfyah8kPC4f6ya0tmpMtoVD/wZyuHNDjWBcYy3 /dA3rxWIZcY02T3lBVg3UNPil63gkbilBz+vdAnyFy0YxDvOGlD7eRIipvOmLKqIVrP3 YlgQpnc6IYGjmJKglDRNNuoNgCVv6gb7dR4aLeQ1qYP2q3jRMfIjrYX1LpNI058TIVg1 Sf7goBjbxuJ+wPilSbZqSA8sC/fyMedKYBEb1qQKMrgbMHZr7TlEbR7xCeVhY97d7nzI vQb4NBlBer8h2zKzNZCRn7DYitCyd+HqFq4n1C9DddFdPduGLfZRcdbNbo6z/D7XPiJ5 IwfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=/+XEXrpHdjeiKozFIidOEWIAKiHLAd/1csOs9KR6CUs=; b=eX3tY++UyDxsET2qy9UxWw/aEN27JTMhnA00v1GFChQ+5Mb1BE9+cAYXrNr9b21eQj K+hoKE16OZLJN3r8rJ7FHfVocgVwiChZxIKXSF/6wZjAx7sTOIZxvHbsSU+EB9uqPHGf GBdQUwB0oYpUEGPXFMqVCy0Pi+L62NgDoMPglCoFGVWOkekJXWi0/H5doRoT26qa4ntT 7myBY6nmv88jjG03FShM2DsLozipxPe4AtnBBeutObMVxsqYisc2FMPoMUiWLeZ//nL2 7qqFFLEGREpMa1uFxVlHs8+KHOqFfIGLm26zW8mHJmqk0CRAuv2dhGHb25zqIuToMv5f P8JQ== X-Gm-Message-State: AHQUAuZ2PqE9BI1f20cCbpddNXEmLrTbFIgkAqKcK8BXGZ2mCYj5BENz SD5qauNeJDbXuZBeSc9nOuM= X-Google-Smtp-Source: AHgI3IbkykJ6tQChJi9XGOX7O/opyyMplOqcU49E54DAuuSR3+RRLAPxrLMZbY+Wkt1OojmLcIv1lA== X-Received: by 2002:a6b:acc5:: with SMTP id v188mr11843305ioe.20.1549652241003; Fri, 08 Feb 2019 10:57:21 -0800 (PST) Received: from anon-dhcp-171.1015granger.net (c-68-61-232-219.hsd1.mi.comcast.net. [68.61.232.219]) by smtp.gmail.com with ESMTPSA id s10sm1244651ioc.21.2019.02.08.10.57.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 08 Feb 2019 10:57:18 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.2 \(3445.102.3\)) Subject: Re: [LSF/MM TOPIC] Network and Cluster File System Pain Points From: Chuck Lever In-Reply-To: Date: Fri, 8 Feb 2019 13:57:17 -0500 Cc: lsf-pc@lists.linux-foundation.org, samba-technical , CIFS , linux-fsdevel Content-Transfer-Encoding: 7bit Message-Id: <6B4781D8-1A16-4A83-B082-87DD664EAFA9@gmail.com> References: To: Steve French X-Mailer: Apple Mail (2.3445.102.3) Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org > On Feb 8, 2019, at 10:59 AM, Steve French wrote: > > There are various topics particularly important to network and cluster > file systems: > - additional metadata on files, directories, mount points (statx, > enhancements to the mount API, ACLs etc.) > - performance related features (leases/delegation, RDMA > integration, reflink/clone extensions, handling sideeffects of long > latency network connections on common fs operations by better > aggregating series of related operations together) > - security features > - mapping features available in various network and cluster FS > protocols to Linux > > (in the past we also have discussed richacl, and a few features that > would help Samba server). I would prefer to focus on just one or two specific topics rather than walking down a laundry list of items that we've visited in previous years. Are there one or two particular new issues where you need some group decision-making? Eg, the file utilities topic seems like a specific topic, interesting for interoperation with cloud provider file systems that are typically large distributed block stores, and thus are slow at doing metadata updates but capable of great aggregate update bandwidth. -- Chuck Lever chucklever@gmail.com