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Re: No more space left on device issue
From: |
Ludovic Courtès |
Subject: |
Re: No more space left on device issue |
Date: |
Mon, 19 Dec 2016 14:52:10 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) |
Hi Maxim,
Maxim Cournoyer <address@hidden> skribis:
> I've had this issue before but couldn't understand what was happening at
> the time. At that time, I simply resized my filesystem then ran the
> garbage collector.
>
> $ touch /tmp/test.txt
> touch: cannot touch '/tmp/test.txt': No space left on device
>
> $ df -h
> Filesystem Size Used Avail Use% Mounted on
> none 1.9G 0 1.9G 0% /dev
> /dev/sda1 37G 25G 11G 71% /
> tmpfs 1.9G 0 1.9G 0% /dev/shm
> cgroup 1.9G 0 1.9G 0% /sys/fs/cgroup
> none 1.9G 12K 1.9G 1% /run/systemd
> none 1.9G 0 1.9G 0% /run/user
> tmpfs 376M 0 376M 0% /run/user/1000
>
> In the #guix channel, jmd suggested that this might be an inode issue:
>
> $ sudo tune2fs -l /dev/sda1
> Password:
> tune2fs 1.42.13 (17-May-2015)
> Filesystem volume name: my-root
> Last mounted on: /
> Filesystem UUID: 2b2b35a6-8f47-4fc2-9700-bda7fc1044cd
> Filesystem magic number: 0xEF53
> Filesystem revision #: 1 (dynamic)
> Filesystem features: has_journal ext_attr resize_inode dir_index
> filetype needs_recovery extent 64bit flex_bg sparse_super large_file
> huge_file dir_nlink extra_isize
> Filesystem flags: signed_directory_hash
> Default mount options: user_xattr acl
> Filesystem state: clean
> Errors behavior: Continue
> Filesystem OS type: Linux
> Inode count: 2445984
> Block count: 9764864
> Reserved block count: 488242
> Free blocks: 3183059
> Free inodes: 23
> First block: 0
> Block size: 4096
> Fragment size: 4096
> Group descriptor size: 64
> Reserved GDT blocks: 1024
> Blocks per group: 32768
> Fragments per group: 32768
> Inodes per group: 8208
> Inode blocks per group: 513
> Flex block group size: 16
> Filesystem created: Tue Nov 1 08:38:50 2016
> Last mount time: Sun Dec 18 10:47:37 2016
> Last write time: Sun Dec 18 10:47:37 2016
> Mount count: 20
> Maximum mount count: -1
> Last checked: Tue Nov 1 08:38:50 2016
> Check interval: 0 (<none>)
> Lifetime writes: 146 GB
> Reserved blocks uid: 0 (user root)
> Reserved blocks gid: 0 (group root)
> First inode: 11
> Inode size: 256
> Required extra isize: 32
> Desired extra isize: 32
> Journal inode: 8
> Default directory hash: half_md4
> Directory Hash Seed: 330c34f4-9c29-4b59-bb21-d8d00770e2e7
> Journal backup: inode blocks
>
>
> It does seem like it is; the "Free inodes" count is very low at 23 and
> this is only refreshed at the time the filesystem is mounted (since I
> last booted).
Indeed, it’s low on free inodes. :-)
That said, 37 G is not that much (my laptop’s root partition, which
includes the store, is 64 G, and I expect most users are in this
ballpark). So I wonder if there might be something else consuming
inodes on this file system. Any ideas?
My root partition has different settings though (it’s really ext3):
--8<---------------cut here---------------start------------->8---
$ sudo tune2fs -l /dev/sda2
tune2fs 1.42.13 (17-May-2015)
Filesystem volume name: root
Last mounted on: /
Filesystem UUID: c5307e6b-d1ba-499d-89c5-cb0b143577c4
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype
needs_recovery sparse_super large_file
--8<---------------cut here---------------end--------------->8---
Could it be that one of these explains the difference?
FWIW mirror.hydra.gnu.org and hydra.gnu.org both have a 1.5TB /gnu as ext4.
In the past we had issues where the directory index of /gnu/store/.links
(used for deduplication) would be full (that’s really the directory
index, not a lack of inodes), which was fixed in
12b6c951cf5ca6055a22a2eec85665353f5510e5.
Ludo’.