Re: Permission denied closing file when accessing GlusterFS via NFS

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Hi,

Gilberto, sorry I didn't realise those were server options. After adding them to the /etc/exports entry and restarting nfsd the same problem still occurs.

Strahil, I ran "gluster volume set help | egrep -i 'acl|xlator'" on the GlusterFS node/FUSE client and got the following results. Is one of them the option you mention?
Description: inode-read fops happen only on one of the bricks in replicate. Afr will prefer the one specified using this option if it is not stale. Option value must be one of the xlator names of the children. Ex: <volname>-client-0 till <volname>-client-<number-of-bricks - 1>
Description: Cache samba metadata (user.DOSATTRIB, security.NTACL xattr)
Description: maximum size of cache consumed by readdir-ahead xlator. This value is global and total memory consumption by readdir-ahead is capped by this value, irrespective of the number/size of directories cached

Could the issue be anything to do with the FUSE client mount options? The output of "mount | grep glusterfs" gives:
gfs1:/gvol0 on /mnt/glusterfs type fuse.glusterfs (rw,noatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)

Thanks again.


On Thu, 12 Aug 2021 at 01:25, Gilberto Ferreira <gilberto.nunes32@xxxxxxxxx> wrote:
Those options you need put it in the NFS server options, generally in /etc/exports
---
Gilberto Nunes Ferreira
(47) 99676-7530 - Whatsapp / Telegram






Em ter., 10 de ago. de 2021 às 18:24, David Cunningham <dcunningham@xxxxxxxxxxxxx> escreveu:
Hi Strahil and Gilberto,

Thanks very much for your replies. SELinux is disabled on the NFS server (and the client too), and both have the same UID and GID for the user who owns the files.

On the NFS mount we had options "rw,noatime,hard,bg,intr,vers=4". I added "async" which did not solve the problem, and the NFS client mount gave an error when trying to use "no_root_squash" or "no_subtree_check". Gilberto, is there a specific reason why you suggested those options?

Thanks again.


On Wed, 11 Aug 2021 at 03:55, Gilberto Ferreira <gilberto.nunes32@xxxxxxxxx> wrote:
HOw about the NFS options?
(rw,async,no_root_squash,no_subtree_check)
---
Gilberto Nunes Ferreira
(47) 99676-7530 - Whatsapp / Telegram






Em ter., 10 de ago. de 2021 às 12:46, Strahil Nikolov <hunter86_bg@xxxxxxxxx> escreveu:
Hey David,

can you give the volume info ?

Also, I assume SELINUX is in permissive/disabled state.

What about the uod of the user on the nfs client and the nfs server ? Is it the same ?

Best Regards,
Strahil Nikolov

On Tue, Aug 10, 2021 at 5:52, David Cunningham
Hello,

We have a GlusterFS node which also uses the FUSE client to mount the filesystem. The same GlusterFS node server also runs an NFS server which exports the FUSE client mount, and another machine NFS mounts it.

When the NFS client writes data to the mounted filesystem we are seeing "Permission denied" errors like this:

cp: closing `/var/lib/gfs/company/david/1075/Copyrec/1628448189883606-203-17184805327-out-08-08-21-14~43~10-203.mp3': Permission denied

The file mentioned in the error is actually created on the GlusterFS filesystem, but has zero size, so the problem is not a normal Linux filesystem permission one.

In the brick log nodirectwritedata-gluster-gvol0.log on the GlusterFS node we see an error as follows. Would anyone have a suggestion on what the problem might be? Thank you in advance!

[2021-08-10 02:30:20.359159] I [MSGID: 139001] [posix-acl.c:262:posix_acl_log_permit_denied] 0-gvol0-access-control: client: CTX_ID:8f69363a-f0f4-44e1-84e9-69dfa77a8164-GRAPH_ID:0-PID:2657-HOST:gfs1.company.com-PC_NAME:gvol0-client-0-RECON_NO:-0, gfid: f70b1cd6-745a-4ea6-b0a5-1fcfef960f15, req(uid:106,gid:111,perm:2,ngrps:0), ctx(uid:106,gid:111,in-groups:1,perm:000,updated-fop:SETATTR, acl:-) [Permission denied]
[2021-08-10 02:30:20.359187] E [MSGID: 115070] [server-rpc-fops_v2.c:1502:server4_open_cbk] 0-gvol0-server: 5554927: OPEN /company/david/1075/Copyrec/1628448189883606-203-17184805327-out-08-08-21-14~43~10-203.mp3 (f70b1cd6-745a-4ea6-b0a5-1fcfef960f15), client: CTX_ID:8f69363a-f0f4-44e1-84e9-69dfa77a8164-GRAPH_ID:0-PID:2657-HOST:gfs1.company.com-PC_NAME:gvol0-client-0-RECON_NO:-0, error-xlator: gvol0-access-control [Permission denied]

--
David Cunningham, Voisonics Limited
http://voisonics.com/
USA: +1 213 221 1092
New Zealand: +64 (0)28 2558 3782
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Community Meeting Calendar:

Schedule -
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Bridge: https://meet.google.com/cpu-eiue-hvk
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
https://lists.gluster.org/mailman/listinfo/gluster-users


--
David Cunningham, Voisonics Limited
http://voisonics.com/
USA: +1 213 221 1092
New Zealand: +64 (0)28 2558 3782


--
David Cunningham, Voisonics Limited
http://voisonics.com/
USA: +1 213 221 1092
New Zealand: +64 (0)28 2558 3782
________



Community Meeting Calendar:

Schedule -
Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC
Bridge: https://meet.google.com/cpu-eiue-hvk
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
https://lists.gluster.org/mailman/listinfo/gluster-users

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