Bug #52531: Quotas smaller than 4MB on subdirs do not have any effect - CephFS - Ceph

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Bug #52531

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Quotas smaller than 4MB on subdirs do not have any effect

Added by Ruben Kerkhof over 2 years ago. Updated almost 2 years ago.

Status:

Triaged

Priority:

Normal

Assignee:

Ramana Raja

Category:

Target version:

% Done:

Source:

Community (user)

Tags:

Backport:

pacific,octopus

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Component(FS):

Client

Labels (FS):

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

This doesn’t work:
root@mon0:~# setfattr -n ceph.quota.max_bytes -v $((4*1024*1024-1)) /mnt/cephfs/
root@mon0:~# getfattr -n ceph.quota.max_bytes /mnt/cephfs/
getfattr: Removing leading '/' from absolute path names

file: mnt/cephfs/
ceph.quota.max_bytes="4194303"

root@mon0:~# df -h /mnt/cephfs/
Filesystem Size Used Avail Use% Mounted on
192.168.42.10:6789,192.168.42.11:6789,192.168.42.12:6789:/subdir 28G 0 28G 0% /mnt/cephfs

The 28GB is the size of the parent fs.

But this does:
root@mon0:~# setfattr -n ceph.quota.max_bytes -v $((4*1024*1024)) /mnt/cephfs/
root@mon0:~# getfattr -n ceph.quota.max_bytes /mnt/cephfs/
getfattr: Removing leading '/' from absolute path names

file: mnt/cephfs/
ceph.quota.max_bytes="4194304"

root@mon0:~# df -h /mnt/cephfs/
Filesystem Size Used Avail Use% Mounted on
192.168.42.10:6789,192.168.42.11:6789,192.168.42.12:6789:/subdir 4.0M 0 4.0M 0% /mnt/cephfs

I did test this in both Octopus and Pacific