Not showing mount point for merged drives

[sek0n]

Type: Bug Report

Your Environment

• Version used:
  • Docker 0.0.0-master.2b652f8
• Operating system and version: Linux
• Torrent client and version: qBittorrent 4.5.5

Summary

Disk usage not showing mount point for drives that are combined via mergerfs

Current Behavior

When trying to add '/media' (int1:s1d1:s1d2:s2d1) to the 'Disk Usage' setting, it doesn't show up.

df -h shows:

❯ docker exec --user node -it flood df -h
Filesystem                Size      Used Available Use% Mounted on
overlay                 226.7G     34.4G    180.8G  16% /
tmpfs                    64.0M         0     64.0M   0% /dev
shm                      64.0M         0     64.0M   0% /dev/shm
/dev/nvme0n1p2          226.7G     34.4G    180.8G  16% /config
/dev/nvme0n1p2          226.7G     34.4G    180.8G  16% /downloads
int1:s1d1:s1d2:s2d1      12.4T     10.2T      2.2T  82% /media
/dev/nvme0n1p2          226.7G     34.4G    180.8G  16% /home/liam
/dev/nvme0n1p2          226.7G     34.4G    180.8G  16% /etc/resolv.conf
/dev/nvme0n1p2          226.7G     34.4G    180.8G  16% /etc/hostname
/dev/nvme0n1p2          226.7G     34.4G    180.8G  16% /etc/hosts
tmpfs                     7.7G         0      7.7G   0% /proc/asound
tmpfs                     7.7G         0      7.7G   0% /proc/acpi
tmpfs                    64.0M         0     64.0M   0% /proc/kcore
tmpfs                    64.0M         0     64.0M   0% /proc/keys
tmpfs                    64.0M         0     64.0M   0% /proc/timer_list
tmpfs                     7.7G         0      7.7G   0% /sys/firmware

What's shown in Flood:

Context

If you don't know what mergerfs is, it basically combines multiple mount points into one, while still being able to access the drives individually from their original mounts.

I have it mounted and visible in docker, as you can see from the df -h. I even added another non-merged drive just to test, and it worked (/test in the screenshot), but nothing seems to work to show the /media mount.

It's added in docker as:
/home/USER/media:/media

[AVCaridi]

Having the same issue here 😕

[trim21]

can you run df -T and paste output here？

[AVCaridi]

[trim21]

do you have any watchMountPoints config?

[trim21]

also please provide a full version of output of this command (in text) so I can test it locally

[AVCaridi]

do you have any watchMountPoints config?

I don't believe so.

[AVCaridi]

also please provide a full version of output of this command (in text) so I can test it locally

Run the command in the container or host?

[trim21]

also please provide a full version of output of this command (in text) so I can test it locally

Run the command in the container or host?

in the container

[AVCaridi]

Filesystem           Type       1K-blocks      Used Available Use% Mounted on
overlay              overlay    479079112  22319568 432350152   5% /
tmpfs                tmpfs          65536         0     65536   0% /dev
shm                  tmpfs          65536         0     65536   0% /dev/shm
/dev/sda2            ext4       479079112  22319568 432350152   5% /config
/dev/sda2            ext4       479079112  22319568 432350152   5% /mnt
mergerfs             fuse.mergerfs
                                30879676668 25583157172 3733670076  87% /mnt/mfsPool
/dev/sdg1            ext4       3844549616 2461483184 1187699216  67% /mnt/.mfsd6
/dev/sdd1            ext4       3844549616 3258721948 390460452  89% /mnt/.mfsd4
/dev/sdf1            ext4       3844549616 2708084452 941097948  74% /mnt/.mfsd5
/dev/sdb1            ext4       3844549616 3591697904  57484496  98% /mnt/.mfsd3
/dev/sdc1            ext4       5813176856 5442319624  77814800  99% /mnt/.mfsd2
/dev/sde1            ext4       9688301348 8120850060 1079113164  88% /mnt/.mfsd1
/dev/sda2            ext4       479079112  22319568 432350152   5% /etc/resolv.conf
/dev/sda2            ext4       479079112  22319568 432350152   5% /etc/hostname
/dev/sda2            ext4       479079112  22319568 432350152   5% /etc/hosts
tmpfs                tmpfs        3894804         0   3894804   0% /proc/asound
tmpfs                tmpfs        3894804         0   3894804   0% /proc/acpi
tmpfs                tmpfs          65536         0     65536   0% /proc/kcore
tmpfs                tmpfs          65536         0     65536   0% /proc/keys
tmpfs                tmpfs          65536         0     65536   0% /proc/timer_list
tmpfs                tmpfs        3894804         0   3894804   0% /proc/scsi
tmpfs                tmpfs        3894804         0   3894804   0% /sys/firmware
tmpfs                tmpfs        3894804         0   3894804   0% /sys/devices/virtual/powercap

[trim21]

are you sure you parse right output here? info of mergerfs are splited in to 2 lines?

[trim21]

consider use df -T | tee output.txt are parse file here

[AVCaridi]

Hmm yeah comes up as 1 line on the host but 2 in the container.

/ $ df -T | tee output.txt
tee: output.txt: Permission denied

[AVCaridi]

Could it just be the name length?

[trim21]

df -T | tee /config/output.txt and find file on /config (which is the mounted path in the container, find real path in host)

[trim21]

Could it just be the name length?

no. I have longger mount path and they works fine.

[AVCaridi]

Same result in the output.txt

[trim21]

can you paste file?

[AVCaridi]

output.txt

[trim21]

OK, so I should consider using some API to get info of filesystem instead os parsing text...

[trim21]

please try master branch.

[AVCaridi]

[trim21]

oops

[AVCaridi]

Haha that's all good

[trim21]

can you run df --exclude-type=devtmpfs --exclude-type=squashfs --exclude-type=tmpfs --exclude-type=overlay command and paste output here?

[AVCaridi]

Host or container?

[trim21]

inside container, always

[AVCaridi]

df: unrecognized option: exclude-type=devtmpfs
BusyBox v1.36.1 (2024-05-21 13:38:37 UTC) multi-call binary.

Usage: df [-PkmhTai] [-B SIZE] [-t TYPE] [FILESYSTEM]...

Print filesystem usage statistics

	-P	POSIX output format
	-k	1024-byte blocks (default)
	-m	1M-byte blocks
	-h	Human readable (e.g. 1K 243M 2G)
	-T	Print filesystem type
	-t TYPE	Print only mounts of this type
	-a	Show all filesystems
	-i	Inodes
	-B SIZE	Blocksize

[trim21]

ok, so some old version df doesn't have --exclude-type......

[trim21]

are you using jesec/flood?

[AVCaridi]

yeah still using the master

[trim21]

should work fine this time.

[AVCaridi]

Working! Thank you 🙏