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=-0.9 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 A1704C43441 for ; Fri, 16 Nov 2018 12:26:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6895C2087A for ; Fri, 16 Nov 2018 12:26:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="dwiPEPyv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6895C2087A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727997AbeKPWie (ORCPT ); Fri, 16 Nov 2018 17:38:34 -0500 Received: from mail-it1-f173.google.com ([209.85.166.173]:38954 "EHLO mail-it1-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727772AbeKPWie (ORCPT ); Fri, 16 Nov 2018 17:38:34 -0500 Received: by mail-it1-f173.google.com with SMTP id m15so34001587itl.4 for ; Fri, 16 Nov 2018 04:26:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=UmLbCqHsWgLG32iUK9ZIb5/RhyicknCSe+PO5jlk9l0=; b=dwiPEPyvpIXfxzLaE+DHKE+EjFUUlQOCNpXweiiCy0uZ5x87G/NVKdYPCo78s6wxuT 1TWdql5U+b2vmom/whktp7YF/gWjyKLffVctQ/wR5SDOiKDpRvO094y7OkhuXBs+7Y2f ANxw1mbUK7+FWV+B0zvbV/AmgETPm2Leyj/EPHwy9r7cSyJrVkj1VS6he1fQO9DR1V3H ms3d8tPrRSW32aNZuPlEZcsPhFMmmy0QW/w+Bv4pHdx9+U/fIaHRQD8ZLNLUSTIDq1jT kM4dDQVKAPVqSCHNWVkyHY0D4gM3BF9F3AvxAT+78Im0uijqhfV/a4MRtFNUASIkjLJ3 5kHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=UmLbCqHsWgLG32iUK9ZIb5/RhyicknCSe+PO5jlk9l0=; b=ZM9dde3UsZGcehqinc6ch5cWFMEnnwobk9IlE00DV193rzd1BOZ1jPeiwskfNtUN9E 4JiDOqgUpUWl8NM29WQPLvYcmVSESSchaT7uiBDNVtZ1K3qEHjdSd5tfdXAme2jEI+T4 P3zswuXE3UcTMs8JnfD1lhJRkIDc2WRDVMDTFsjitmjQmc64zPeV5Bmr5IvDxlvmQ6Zs zqtQ2LckTQaGu5G3MYL+i/y5wMKMX8hgT4tXpf9HwTDkSVpViEU1BJiIjHbD3INcNbc2 zgVnY4GYGX0ShU9mlpU8OQgfNcb0nBvmBDwZnJ5/DfGk5oZBIkExFPRcYlUr6sOYmTz9 AAjw== X-Gm-Message-State: AGRZ1gKhOgvBppXcCJmZNFyCEx3xwHspvB9v/VIAyB0CC2hOycTXnlWA x3rpg6ZpkRQe+xa2BlJmH0UBVU7L8vI= X-Google-Smtp-Source: AFSGD/WOVAEgaiqX2wXujQf2SrEhPT3zDDqpduLi+UfSV+yWKT4nqL9/+48FzGO49rvp6IsCJC2G9A== X-Received: by 2002:a24:2c1:: with SMTP id 184-v6mr9311696itu.7.1542371183343; Fri, 16 Nov 2018 04:26:23 -0800 (PST) Received: from [191.9.209.46] (rrcs-70-62-41-24.central.biz.rr.com. [70.62.41.24]) by smtp.gmail.com with ESMTPSA id c21sm5562589iob.22.2018.11.16.04.26.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Nov 2018 04:26:22 -0800 (PST) Subject: Re: BTRFS on production: NVR 16+ IP Cameras To: jacirez@rdcsafety.com, linux-btrfs@vger.kernel.org References: From: "Austin S. Hemmelgarn" Message-ID: <0bafdbb4-82bf-5b28-b9bd-0fa1a4c2cb2b@gmail.com> Date: Fri, 16 Nov 2018 07:26:19 -0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 2018-11-15 13:39, Juan Alberto Cirez wrote: > Is BTRFS mature enough to be deployed on a production system to underpin > the storage layer of a 16+ ipcameras-based NVR (or VMS if you prefer)? For NVR, I'd say no. BTRFS does pretty horribly with append-only workloads, even if they are WORM style. It also does a really bad job with most relational database systems that you would likely use for indexing. If you can suggest your reasoning for wanting to use BTRFS though, I can probably point you at alternatives that would work more reliably for your use case.