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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 48E84C3A5A8 for ; Wed, 4 Sep 2019 17:36:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1D29121883 for ; Wed, 4 Sep 2019 17:36:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=colorremedies-com.20150623.gappssmtp.com header.i=@colorremedies-com.20150623.gappssmtp.com header.b="wbOTFPEa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731676AbfIDRgV (ORCPT ); Wed, 4 Sep 2019 13:36:21 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:37257 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727809AbfIDRgU (ORCPT ); Wed, 4 Sep 2019 13:36:20 -0400 Received: by mail-wr1-f66.google.com with SMTP id z11so22175674wrt.4 for ; Wed, 04 Sep 2019 10:36:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=colorremedies-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=d44qtIqdHRg7B2Giu7yG0QxOK6Knn2kRmBFh+A/9fTM=; b=wbOTFPEageldGTsbCglpapdUoFlsrz+h1H4BXdO0e7aMQQeF/LzC+itdBf5a43njCl z/8BVAPN/whY+PsyGxeFKlXJZ0Dywq4mXEQltlJdUHmrWNU3T8GLRg8vy+tQfw/0uHhp dxtNe2i9B6kgmq1ZZQbLqv/GnSBbW5TwIrmtkFgkXXha+110Tgi/DiCHFJXBziwrSpX6 Q8HGsbs5tm7gFdMdJxBXHS/9LvQtlhcvbFrbnGMIQZLVT2JuSHgX11gzYHOpb/Vy6z5B 80FTpoSliZTPQZSflycbj2puVnGZyGB9XV7KQ3MIqPdSAncGy64SYMiJeLIk5WZ8ZhE5 DVTg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=d44qtIqdHRg7B2Giu7yG0QxOK6Knn2kRmBFh+A/9fTM=; b=tfH302UhGer5QLAbEbLVVDAE4fOg0bDKiDYhnBnQXBIbwxSimgMshg6C1OX33+PQs+ MPlchF6MWzVRhAoOGM5/MMbWzcIrCOVT9fB9B+60zY3ORVW9CNCHlLw9YNTIIZR3AtNn MWWvFcoY96IxBLiDX8aBcOc18e85hll7yBo/ZTlwHQ+EMSuOavUn1HyvhRY/AhyqHP94 2XyjLBuhgwIBtVjcFew5XbKsXdqiFaAKhX/+QV/8nizINRb5aEg+aKrxbVoYCjbZFAm2 gnDikQKxrsA5rsXwK4QYj6f+F6cKoaFWrdDpm/3QhoQnFsSL77UHBhUg7qK0KREs8C7y kc1A== X-Gm-Message-State: APjAAAVN5RV02WAtR5zFI+1+j7MbZgEEi0iVCSHoyhEV3B69ycwUyZJp YGRdTFa07mVv4RXIR6DIzBtL5mRAkvqmsgNDq1MNqJmZBhY= X-Google-Smtp-Source: APXvYqw8l9JOPzL9+zzHw7vlADaviRX+QMjpGr8Rv4kEn6JvZ9NDrMGZpjtg/K3fe7b/x7RQ0uFyqh53TrAx4DukvKY= X-Received: by 2002:a5d:46cb:: with SMTP id g11mr3150068wrs.268.1567618578587; Wed, 04 Sep 2019 10:36:18 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Chris Murphy Date: Wed, 4 Sep 2019 11:36:07 -0600 Message-ID: Subject: Re: No files in snapshot To: Thomas Schneider <74cmonty@gmail.com> Cc: Chris Murphy , Btrfs BTRFS Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Wed, Aug 28, 2019 at 8:45 AM Thomas Schneider <74cmonty@gmail.com> wrote: > > Hi, > > I was thinking of this, too. But it does not apply. > root@ld5507:~# btrfs su list -to /var/lib > ID gen top level path > -- --- --------- ---- > root@ld5507:~# btrfs su list -to /var > ID gen top level path > -- --- --------- ---- > > And there are files in other directories: > root@ld5507:~# ls -l /.snapshots/158/snapshot/var/lib/ceph/mgr/ceph-ld5507/ > insgesamt 4 > -rw-r--r-- 1 ceph ceph 61 Mai 28 14:33 keyring > > root@ld5507:~# ls -l /.snapshots/158/snapshot/var/lib/ceph/mon/ceph-ld5507/ > insgesamt 12 > -rw------- 1 ceph ceph 77 Mai 28 14:33 keyring > -rw-r--r-- 1 ceph ceph 8 Mai 28 14:33 kv_backend > -rw-r--r-- 1 ceph ceph 3 Aug 23 09:41 min_mon_release > drwxr-xr-x 1 ceph ceph 244 Aug 26 18:37 store.db > > Only this directories > /.snapshots/158/snapshot/var/lib/ceph/osd/ceph-/ are empty: > root@ld5507:~# ls -l /.snapshots/158/snapshot/var/lib/ceph/osd/ceph-219/ > insgesamt 0 > > To create a snapshot I run this command: > snapper create --type single --description "validate > /var/lib/ceph/osd/ceph-" > I don't really know how snapper works. The way 'btrfs subvolume snapshot' works, you must point it to a subvolume. It won't snapshot a regular directory and from what you posted above, there are no subvolumes in /var or /var/lib which means trying to snapshot /var/lib/ceph/osd/ceph-.... would fail. So maybe it's failing but snapper doesn't show the error. I'm not really sure. -- Chris Murphy