Hi all, I have recently setup a Ceph cluster and on request using CephFS (MDS version: ceph version 13.2.5 (cbff874f9007f1869bfd3821b7e33b2a6ffd4988) mimic (stable)) as a backend for NFS-Ganesha. I have successfully tested a direct mount with CephFS to read/write files, however I’m perplexed as to NFS mounting as read-only despite setting the RW flags. [root@mon02 mnt]# touch cephfs/test.txt touch: cannot touch âcephfs/test.txtâ: Read-only file system Configuration of Ganesha is below: NFS_CORE_PARAM { Enable_NLM = false; Enable_RQUOTA = false; Protocols = 4; } NFSv4 { Delegations = true; RecoveryBackend = rados_ng; Minor_Versions = 1,2; } CACHEINODE { Dir_Chunk = 0; NParts = 1; Cache_Size = 1; } EXPORT { Export_ID = 15; Path = "/"; Pseudo = "/cephfs/"; Access_Type = RW; NFS_Protocols = "4"; Squash = No_Root_Squash; Transport_Protocols = TCP; SecType = "none"; Attr_Expiration_Time = 0; Delegations = R; FSAL { Name = CEPH; User_Id = "ganesha"; Filesystem = "cephfs"; Secret_Access_Key = "<key here>"; } } Provided mount parameters: mount -t nfs -o nfsvers=4.1,proto=tcp,rw,noatime,sync 172.16.32.15:/ /mnt/cephfs I have tried stripping much of the config and altering mount options, but so far completely unable to decipher the cause. Also seems I’m not the only one who has been caught on this: https://www.spinics.net/lists/ceph-devel/msg41201.html Thanks in advance, Thomas |
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