Bug #68453: mds: Failed to create a file on a path eventhough mds auth caps has 'rw' on the path - CephFS - Ceph

Actions

Copy link

Bug #68453

closed

mds: Failed to create a file on a path eventhough mds auth caps has 'rw' on the path

Added by Kotresh Hiremath Ravishankar over 1 year ago. Updated 9 months ago.

Status:

Resolved

Priority:

Normal

Assignee:

Kotresh Hiremath Ravishankar

Category:

Target version:

% Done:

100%

Source:

Backport:

reef,quincy

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Component(FS):

Labels (FS):

Pull request ID:

54381

Tags (freeform):

backport_processed

Merge Commit:

38d614c85df9f9690c896b072a86aa618e23b213

Fixed In:

v19.0.0-678-g38d614c85df9

Released In:

v19.2.0~928

Upkeep Timestamp:

Description

Also seen in the https://bugzilla.redhat.com/show_bug.cgi?id=2316919

[root@ceph-amk-top-bh9z9m-node8 ~]# ceph fs subvolume getpath cephfs subvol_1
/volumes/_nogroup/subvol_1/33a3d82f-93b9-470d-b937-e2b20552deb8
[root@ceph-amk-top-bh9z9m-node8 ~]# ceph fs authorize cephfs client.test_auth / r /volumes/_nogroup/subvol_1/33a3d82f-93b9-470d-b937-e2b20552deb8/ rw
[client.test_auth]
key = AQC......
[root@ceph-amk-top-bh9z9m-node8 ~]# ceph auth get client.test_auth -o /etc/ceph/ceph.client.test_auth.keyring
[root@ceph-amk-top-bh9z9m-node8 ~]# mkdir /mnt/cephfuse
[root@ceph-amk-top-bh9z9m-node8 ~]# ceph-fuse -n client.test_auth /mnt/cephfuse/ -r / --client_fs cephfs
2024-10-07T04:37:07.430-0400 7fd06d40b480 -1 init, newargv = 0x7fd05c004bd0 newargc=15
ceph-fuse⁶⁵⁵²: starting ceph client
ceph-fuse⁶⁵⁵²: starting fuse
[root@ceph-amk-top-bh9z9m-node8 ~]# ceph auth get ceph-fuse -n client.test_auth /mnt/cephfuse/ -r / --client_fs cephfs ^C
[root@ceph-amk-top-bh9z9m-node8 ~]# ^C
[root@ceph-amk-top-bh9z9m-node8 ~]# ceph auth get client.test_auth
[client.test_auth]
key = AQC.......
caps mds = "allow r fsname=cephfs, allow rw fsname=cephfs path=/volumes/_nogroup/subvol_1/33a3d82f-93b9-470d-b937-e2b20552deb8/"
caps mon = "allow r fsname=cephfs"
caps osd = "allow rw tag cephfs data=cephfs"
[root@ceph-amk-top-bh9z9m-node8 ~]# cd /mnt/cephfuse/
[root@ceph-amk-top-bh9z9m-node8 cephfuse]# touch auth_test_file
touch: cannot touch 'auth_test_file': Permission denied
[root@ceph-amk-top-bh9z9m-node8 cephfuse]# cd volumes/_nogroup/subvol_1/33a3d82f-93b9-470d-b937-e2b20552deb8/
[root@ceph-amk-top-bh9z9m-node8 33a3d82f-93b9-470d-b937-e2b20552deb8]#
[root@ceph-amk-top-bh9z9m-node8 33a3d82f-93b9-470d-b937-e2b20552deb8]# touch auth_test_file
touch: cannot touch 'auth_test_file': Permission denied