I tried the same operation in Nautilus, without success
from ceph-bluestore-tool documentation
-
if source list has slow volume only - operation isn’t permitted,
requires explicit allocation via new-db/new-wal command.
so i tried
ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-${OSD}
bluefs-bdev-new-db --dev-target /dev/bluesfs_db/db-osd${OSD} then
ceph-bluestore-tool --path /dev/osd1/ --devs-source dev/osd1/block
--dev-target dev/osd1/block.db bluefs-bdev-migrate
(and many others syntax combinations)
but i always get "too many positional options have been specified on the
command line"
Maybe "bluefs-bdev-new-db" is sufficient to have "slow's integrated
rocksdb" migrated?
Regards
Flavio
Il giorno ven 17 dic 2021 alle ore 18:57 Anthony D'Atri <
anthony.datri@xxxxxxxxx> ha scritto:
> Or incrementally destroy and redeploy the OSDs, which will be slower and
> entail a lot of data movement.
>
> >
> > Hey Flavio,
> >
> > I think there are no options other then either upgrade the cluster or
> backport the relevant bluefs migration code to Lumnous and make a custom
> build.
> >
> >
> > Thanks,
> >
> > Igor
> >
> > On 12/17/2021 4:43 PM, Flavio Piccioni wrote:
> >> Hi all,
> >> in a Luminous+Bluestore cluster, I would like to migrate rocksdb
> (including
> >> wal) to nvme (lvm).
> >>
> >> (output comes from test env. with minimum sized hdd to test procedures)
> >> ceph-bluestore-tool show-label --path /var/lib/ceph/osd/ceph-0
> >> infering bluefs devices from bluestore path
> >> {
> >> "/var/lib/ceph/osd/ceph-0/block": {
> >> "osd_uuid": "399e7751-d791-4493-9f53-caf1650573ed",
> >> "size": 107369988096,
> >> "btime": "2021-12-16 16:24:32.412358",
> >> "description": "main",
> >> "bluefs": "1",
> >> "ceph_fsid": "uuid",
> >> "kv_backend": "rocksdb",
> >> "magic": "ceph osd volume v026",
> >> "mkfs_done": "yes",
> >> "osd_key": "mykey",
> >> "ready": "ready",
> >> "require_osd_release": "\u000e",
> >> "whoami": "0"
> >> }
> >> }
> >> rocksdb and wal are integrated in slowfs, so there is no rock.db o .wal
> >> entry
> >>
> >> In Luminous and Mimic, there is no bluefs-bdev-new-db option for
> >> ceph-bluestore-tool.
> >> How can this dump+migration be archived in old versions?
> >>
> >> Regards
> >> _______________________________________________
> >> ceph-users mailing list -- ceph-users@xxxxxxx
> >> To unsubscribe send an email to ceph-users-leave@xxxxxxx
> >
> > --
> > Igor Fedotov
> > Ceph Lead Developer
> >
> > Looking for help with your Ceph cluster? Contact us at https://croit.io
> >
> > croit GmbH, Freseniusstr. 31h, 81247 Munich
> > CEO: Martin Verges - VAT-ID: DE310638492
> > Com. register: Amtsgericht Munich HRB 231263
> > Web: https://croit.io | YouTube: https://goo.gl/PGE1Bx
> >
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> > ceph-users mailing list -- ceph-users@xxxxxxx
> > To unsubscribe send an email to ceph-users-leave@xxxxxxx
>
>
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