Hello All,
There is a problem to mapping RBD images to ubuntu
16.04(Kernel 4.4.0-22-generic).
All of the ceph solution is based on ubunut 16.04(deploy, monitors, OSDs
and Clients).
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there are some output of my config :
*$ ceph status *
cluster 8f2da78c-89e9-4924-9238-5bf9110664cd
health HEALTH_OK
monmap e1: 3 mons at {mon1=
192.168.0.52:6789/0,mon2=192.168.0.53:6789/0,mon3=192.168.0.54:6789/0}
election epoch 4, quorum 0,1,2 mon1,mon2,mon3
osdmap e50: 9 osds: 9 up, 9 in
flags sortbitwise
pgmap v183: 576 pgs, 2 pools, 306 bytes data, 4 objects
324 MB used, 899 GB / 899 GB avail
576 active+clean
when i want to map testpool/vdisk1(for example) :
*$ sudo rbd map testpool/vdisk1*
rbd: sysfs write failed
RBD image feature set mismatch. You can disable features unsupported by the
kernel with "rbd feature disable".
In some cases useful info is found in syslog - try "dmesg | tail" or so.
rbd: map failed: (6) No such device or address
*$ rbd info testpool/vdisk1 *
rbd image 'vdisk1':
size 4096 MB in 1024 objects
order 22 (4096 kB objects)
block_name_prefix: rbd_data.1064238e1f29
format: 2
features: layering, exclusive-lock, object-map, fast-diff,
deep-flatten
flags:
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But, when i disabled following features, finally i could map my
image(vdisk1).
*exclusive-lock, object-map, fast-diff, deep-flatten*
So, what is the problem ???
Regards
Albert
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