Update: setting "ceph fs set-default CEPH-FS-NAME" allows to do a kernel fs
mount without providing the mds_namespace mount option, but the vfs_ceph module still
fails with either
cephwrap_connect: [CEPH] Error return: Operation not permitted
or
cephwrap_connect: [CEPH] Error return: Operation not supported
depending on whether I use
ceph:user_id = USER-NAME
or
ceph:user_id = client.USER-NAME
I guess the second user spec is correct as the first error message indicates an auth
problem. On the client side I see the same message in both cases:
tree connect failed: NT_STATUS_UNSUCCESSFUL
Best regards,
=================
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
________________________________________
From: Frank Schilder <frans(a)dtu.dk>
Sent: 23 September 2020 11:00:50
To: ceph-users
Subject: [ceph-users] samba vfs_ceph: client_mds_namespace not working?
Dear all,
maybe someone has experienced this before. We are setting up a SAMBA gateway and would
like to use the vfs_ceph module. In case of several file systems one needs to choose an
mds namespace. There is an option in ceph.conf:
client mds namespace = CEPH-FS-NAME
Unfortunately, it seems not to work. I tried it in all possible versions, in [global] and
[client], with and without "client" at the beginning, to no avail. I either get
a time out or an error. I also found the libcephfs function
ceph_select_filesystem(cmount, CEPH-FS-NAME)
added it to vfs_ceph.c just before the ceph_mount with the same result, I get an error
(operation not permitted). Does anyone know how to get this to work? And, yes, I tested an
ordinary kernel fs mount with the credentials for the ceph client without problems.
I can't access any documentation on the libcephfs api, I always get a page not found
error.
My last resort is now to
ceph fs set-default CEPH-FS-NAME
to the fs to be used and live with the implied restrictions and ugliness.
Best regards,
=================
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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