On Tue, 18 Dec 2018, Igor Fedotov wrote:
>
> On 12/17/2018 6:23 PM, Alfredo Deza wrote:
> > On Mon, Dec 17, 2018 at 9:20 AM Igor Fedotov <ifedotov@xxxxxxx> wrote:
> > > Hi All,
> > >
> > > Got a question while playing with ceph-volume
> > >
> > > Are --block.db and --block.wal options mandatory for 'ceph-volume lvm
> > > prepare --bluestore' command?
> > These are not mandatory (per the bluestore spec). Bluestore has 4 ways
> > of deploying an OSD:
> >
> > 1) with a data (block) device only
> > 2) with a data device and a block.db
> > 3) with a data device and a wal.db
> > 4) with a data device, block.db, and wal.db
> >
> > There is no enforcement for a specific one, any of the above is valid.
> > > No formal syntax error is provided if omitted but OSD isn't prepared
> > > with the following output:
> ...
> > Would help here to see what the actual ceph-volume call was (can't
> > tell by looking at ceph-osd output)
> >
> > Looks like you tried several times to deploy for the same OSD? Do you
> > think you can provide a way to replicate how you got here?
>
> This is 100% reproducible for fresh "vstart" cluster:
>
> ../src/vstart -n
>
> chmod 777 /tmp/<asok-file>
>
> chmod 777 ./dev
>
> chmod 777 ./out
>
> ceph auth add client.bootstrap-osd mon 'allow profile bootstrap-osd'
>
> ceph auth export -i ./keyring > /var/lib/ceph/bootstrap-osd/ceph.keyring
>
> CEPH_CONF=ceph.conf /usr/local/bin/ceph-volume lvm prepare --data nvme/data
> --bluestore
vstart's ceph.conf debugs a bunch of bluestore_* options that normal users
generally don't need/use.. maybe that is affecting things?
bluestore fsck on mount = true
bluestore block create = true
bluestore block db path = /home/sage/src/ceph/build/dev/osd$id/block.db.file
bluestore block db size = 67108864
bluestore block db create = true
bluestore block wal path = /home/sage/src/ceph/build/dev/osd$id/block.wal.file
bluestore block wal size = 1048576000
bluestore block wal create = true
sage
>
>
> Thanks,
>
> Igor
>
>
