[GH-ISSUE #2071] df command shows wrong values (Used=0) #1046

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opened 2026-03-04 01:50:56 +03:00 by kerem · 3 comments

kerem commented

2026-03-04 01:50:56 +03:00

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Originally created by @Framsfex on GitHub (Nov 30, 2022).
Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/2071

Version of s3fs being used (`s3fs --version`)

V1.86 (commit:unknown)

Version of fuse being used (`pkg-config --modversion fuse`, `rpm -qi fuse` or `dpkg -s fuse`)

2.9.9-3

Kernel information (`uname -r`)

5.4.0-132-generic

GNU/Linux Distribution, if applicable (`cat /etc/os-release`)

Ubuntu 20.04.5

How to run s3fs, if applicable

s3fs s3fs-test /S3 -o passwd_file=/root/.passwd-s3fs -o url=https://s3.tik.uni-stuttgart.de -o use_path_request_style

Details about issue

root@obertux:/S3# mount | grep S3
s3fs on /S3 type fuse.s3fs (rw,nosuid,nodev,relatime,user_id=0,group_id=0)

root@obertux:/S3# df -TH .
Filesystem Type Size Used Avail Use% Mounted on
s3fs fuse.s3fs 282T 0 282T 0% /S3

root@obertux:/S3# du -sh
41G .

root@obertux:/S3# find . | wc -l
108

==> df shows Used=0 but there IS at least 41 GB of file data!

Originally created by @Framsfex on GitHub (Nov 30, 2022). Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/2071 #### Version of s3fs being used (`s3fs --version`) V1.86 (commit:unknown) #### Version of fuse being used (`pkg-config --modversion fuse`, `rpm -qi fuse` or `dpkg -s fuse`) 2.9.9-3 #### Kernel information (`uname -r`) 5.4.0-132-generic #### GNU/Linux Distribution, if applicable (`cat /etc/os-release`) Ubuntu 20.04.5 #### How to run s3fs, if applicable s3fs s3fs-test /S3 -o passwd_file=/root/.passwd-s3fs -o url=https://s3.tik.uni-stuttgart.de -o use_path_request_style ### Details about issue root@obertux:/S3# mount | grep S3 s3fs on /S3 type fuse.s3fs (rw,nosuid,nodev,relatime,user_id=0,group_id=0) root@obertux:/S3# df -TH . Filesystem Type Size Used Avail Use% Mounted on s3fs fuse.s3fs 282T 0 282T 0% /S3 root@obertux:/S3# du -sh 41G . root@obertux:/S3# find . | wc -l 108 ==> df shows Used=0 but there IS at least 41 GB of file data!

kerem closed this issue

2026-03-04 01:50:56 +03:00

kerem commented

2026-03-04 01:50:57 +03:00

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@gaul commented on GitHub (Dec 1, 2022):

s3fs cannot support space used via statvfs since it does not/cannot store the number of bytes used and S3 does not provide it. You need to use du instead of df.

@gaul commented on GitHub (Dec 1, 2022): s3fs cannot support space used via `statvfs` since it does not/cannot store the number of bytes used and S3 does not provide it. You need to use `du` instead of `df`.

kerem commented

2026-03-04 01:50:57 +03:00

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@Framsfex commented on GitHub (Dec 1, 2022):

Please look at my report: I have used df! THIS IS the problem! df reports wrong numbers!

@Framsfex commented on GitHub (Dec 1, 2022): Please look at my report: I have used df! THIS IS the problem! df reports wrong numbers!

kerem commented

2026-03-04 01:50:57 +03:00

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@gaul commented on GitHub (Dec 1, 2022):

I corrected my comment. Again, this is not something s3fs will ever support since S3 does not provide this information and it is expensive to calculate.

@gaul commented on GitHub (Dec 1, 2022): I corrected my comment. Again, this is not something s3fs will ever support since S3 does not provide this information and it is expensive to calculate.