Ok, but I've kernel 3.19.0-39-generic, so the new version is supposed to work right?, and I'm still getting issues while trying to map the RBD:
$ sudo rbd --cluster cephIB create e60host01vX --size 100G --pool rbd -c /etc/ceph/cephIB.conf
$ sudo rbd -p rbd bench-write e60host01vX --io-size 4096 --io-threads 1 --io-total 4096 --io-pattern rand -c /etc/ceph/cephIB.conf
bench-write io_size 4096 io_threads 1 bytes 4096 pattern random
SEC OPS OPS/SEC BYTES/SEC
elapsed: 0 ops: 1 ops/sec: 29.67 bytes/sec: 121536.32
$ sudo rbd --cluster cephIB map e60host01vX --pool rbd -c /etc/ceph/cephIB.conf
rbd: sysfs write failed
rbd: map failed: (5) Input/output error
$ sudo rbd -p rbd info e60host01vX -c /etc/ceph/cephIB.conf
rbd image 'e60host01vX':
size 102400 MB in 25600 objects
order 22 (4096 kB objects)
block_name_prefix: rbd_data.5f03238e1f29
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
flags:
$ sudo rbd --cluster cephIB create e60host01vX --size 100G --pool rbd -c /etc/ceph/cephIB.conf
$ sudo rbd -p rbd bench-write e60host01vX --io-size 4096 --io-threads 1 --io-total 4096 --io-pattern rand -c /etc/ceph/cephIB.conf
bench-write io_size 4096 io_threads 1 bytes 4096 pattern random
SEC OPS OPS/SEC BYTES/SEC
elapsed: 0 ops: 1 ops/sec: 29.67 bytes/sec: 121536.32
$ sudo rbd --cluster cephIB map e60host01vX --pool rbd -c /etc/ceph/cephIB.conf
rbd: sysfs write failed
rbd: map failed: (5) Input/output error
$ sudo rbd -p rbd info e60host01vX -c /etc/ceph/cephIB.conf
rbd image 'e60host01vX':
size 102400 MB in 25600 objects
order 22 (4096 kB objects)
block_name_prefix: rbd_data.5f03238e1f29
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
flags:
Any other idea of what could be the problem here?
German
2016-03-30 5:15 GMT-03:00 Ilya Dryomov <idryomov@xxxxxxxxx>:
On Wed, Mar 30, 2016 at 3:03 AM, Jason Dillaman <dillaman@xxxxxxxxxx> wrote:
> Understood -- format 2 was promoted to the default image format starting with Infernalis (which not all users would have played with since it isn't LTS). The defaults can be overridden via the command-line when creating new images or via the Ceph configuration file.
>
> I'll let Ilya provide input on which kernels support image format 2, but from a quick peek on GitHub it looks like support was added around the v3.8 timeframe.
Layering (i.e. format 2 with default striping parameters) is supported
starting with 3.10. We don't really support older kernels - backports
are pretty much all 3.10+, etc.
Thanks,
Ilya
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