From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from meiko.romanrm.net ([195.154.92.155]:53686 "EHLO meiko.romanrm.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750844AbcBHLYN (ORCPT ); Mon, 8 Feb 2016 06:24:13 -0500 Date: Mon, 8 Feb 2016 16:24:10 +0500 From: Roman Mamedov To: Tomasz Chmielewski Cc: linux-btrfs Subject: Re: 4.4.0 - no space left with >1.7 TB free space left Message-ID: <20160208162410.58cb2b4a@natsu> In-Reply-To: <0c19f800da3013f22f2ab0d77d5a9efb@admin.virtall.com> References: <0c19f800da3013f22f2ab0d77d5a9efb@admin.virtall.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; boundary="Sig_/5ZAoMkpj=EYtFrZHSESR/+b"; protocol="application/pgp-signature" Sender: linux-btrfs-owner@vger.kernel.org List-ID: --Sig_/5ZAoMkpj=EYtFrZHSESR/+b Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Mon, 08 Feb 2016 18:22:34 +0900 Tomasz Chmielewski wrote: > Linux 4.4.0 - btrfs is mainly used to host lots of test containers,=20 > often snapshots, and at times, there is heavy IO in many of them for=20 > extended periods of time. btrfs is on HDDs. >=20 >=20 > Every few days I'm getting "no space left" in a container running mongo=20 > 3.2.1 database. Interestingly, haven't seen this issue in containers=20 > with MySQL. All databases have chattr +C set on their directories. Hello, Do you snapshot the parent subvolume which holds the databases? Can you correlate that perhaps ENOSPC occurs at the time of snapshotting? If yes, t= hen you should try the patch https://patchwork.kernel.org/patch/7967161/ (Too bad this was not included into 4.4.1.) --=20 With respect, Roman --Sig_/5ZAoMkpj=EYtFrZHSESR/+b Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAla4etoACgkQTLKSvz+PZwitWACdFq942EmVkH0EyPHCN5g1x3eO 4KAAoIEs2R2LBHtaY27yC8lDZR3P6m1t =FJZr -----END PGP SIGNATURE----- --Sig_/5ZAoMkpj=EYtFrZHSESR/+b--