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From: Tomasz Chmielewski <mangoo@wpkg.org>
To: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: yet another "out of space" on a filesystem with >100 GB free space, and strange files which exist but don't exist
Date: Wed, 04 Oct 2017 20:13:01 +0900	[thread overview]
Message-ID: <7c6a0bb4ff9b4f09c7ea6f6c7173a994@wpkg.org> (raw)

Kernel: 4.13.4, btrfs RAID-1.

Disk usage more or less like below (yes, I know about btrfs fi df / show 
/ usage):

Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       424G  262G  161G  62% /var/lib/lxd


Balance would exit immediately with "out of space", but continues to run 
after I've removed a few gigabytes from the filesystem.


Now, I'm seeing some files which exist, but don't. Strange, I know.


root@lxd02 /var/lib/lxd/containers/mongo-repl04b/rootfs/var/lib/mongodb 
# ls *set
ls: cannot access 'WiredTiger.turtle.set': No such file or directory

root@lxd02 /var/lib/lxd/containers/mongo-repl04b/rootfs/var/lib/mongodb 
# ls -l|grep set
ls: cannot access 'WiredTiger.turtle.set': No such file or directory
-????????? ? ?      ?                ?            ? 
WiredTiger.turtle.set

root@lxd02 /var/lib/lxd/containers/mongo-repl04b/rootfs/var/lib/mongodb 
# mv WiredTiger.turtle.set WiredTiger.turtle.set.Ghost.File
mv: cannot stat 'WiredTiger.turtle.set': No such file or directory

root@lxd02 /var/lib/lxd/containers/mongo-repl04b/rootfs/var/lib/mongodb 
# rm -v WiredTiger.turtle.set
rm: cannot remove 'WiredTiger.turtle.set': No such file or directory



What is this file, and why does it exist if it doesn't? How do I remove 
it?


Tomasz Chmielewski
https://lxadm.com

             reply	other threads:[~2017-10-04 11:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-04 11:13 Tomasz Chmielewski [this message]
2017-10-04 11:20 ` yet another "out of space" on a filesystem with >100 GB free space, and strange files which exist but don't exist Austin S. Hemmelgarn
2017-10-04 12:46   ` Tomasz Chmielewski
2017-10-04 13:25     ` Dmitrii Tcvetkov

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