Hi Tony.
I assume they used a size constraint instead of rotational. So if all your SSD's are 1TB or less , and all HDD's are more than that you could use:
spec:
objectstore: bluestore
data_devices:
rotational: true
filter_logic: AND
db_devices:
size: ':1TB'
It was usable in my test environment, and seems to work.
Regards
Jens
-----Original Message-----
From: Tony Liu <tonyliu0592@xxxxxxxxxxx>
Sent: 9. februar 2021 02:09
To: David Orman <ormandj@xxxxxxxxxxxx>
Cc: ceph-users@xxxxxxx
Subject: Re: db_devices doesn't show up in exported osd service spec
Hi David,
Could you show me an example of OSD service spec YAML to workaround it by specifying size?
Thanks!
Tony
________________________________________
From: David Orman <ormandj@xxxxxxxxxxxx>
Sent: February 8, 2021 04:06 PM
To: Tony Liu
Cc: ceph-users@xxxxxxx
Subject: Re: Re: db_devices doesn't show up in exported osd service spec
Adding ceph-users:
We ran into this same issue, and we used a size specification to workaround for now.
Bug and patch:
https://tracker.ceph.com/issues/49014
https://github.com/ceph/ceph/pull/39083
Backport to Octopus:
https://github.com/ceph/ceph/pull/39171
On Sat, Feb 6, 2021 at 7:05 PM Tony Liu <tonyliu0592@xxxxxxxxxxx<mailto:tonyliu0592@xxxxxxxxxxx>> wrote:
Add dev to comment.
With 15.2.8, when apply OSD service spec, db_devices is gone.
Here is the service spec file.
==========================================
service_type: osd
service_id: osd-spec
placement:
hosts:
- ceph-osd-1
spec:
objectstore: bluestore
data_devices:
rotational: 1
db_devices:
rotational: 0
==========================================
Here is the logging from mon. The message with "Tony" is added by me in mgr to confirm. The audit from mon shows db_devices is gone.
Is there anything in mon to filter that out based on host info?
How can I trace it?
==========================================
audit 2021-02-07T00:45:38.106171+0000 mgr.ceph-control-1.nxjnzz (mgr.24142551) 4020 : audit [DBG] from='client.24184218 -' entity='client.admin' cmd=[{"prefix": "orch apply osd", "target": ["mon-mgr", ""]}]: dispatch cephadm 2021-02-07T00:45:38.108546+0000 mgr.ceph-control-1.nxjnzz (mgr.24142551) 4021 : cephadm [INF] Marking host: ceph-osd-1 for OSDSpec preview refresh.
cephadm 2021-02-07T00:45:38.108798+0000 mgr.ceph-control-1.nxjnzz (mgr.24142551) 4022 : cephadm [INF] Saving service osd.osd-spec spec with placement ceph-osd-1 cephadm 2021-02-07T00:45:38.108893+0000 mgr.ceph-control-1.nxjnzz (mgr.24142551) 4023 : cephadm [INF] Tony: spec: <bound method ServiceSpec.to_json of DriveGroupSpec(name=osd-spec->placement=PlacementSpec(hosts=[HostPlacementSpec(hostname='ceph-osd-1', network='', name='')]), service_id='osd-spec', service_type='osd', data_devices=DeviceSelection(rotational=1, all=False), db_devices=DeviceSelection(rotational=0, all=False), osd_id_claims={}, unmanaged=False, filter_logic='AND', preview_only=False)> audit 2021-02-07T00:45:38.109782+0000 mon.ceph-control-3 (mon.2) 25 : audit [INF] from='mgr.24142551 10.6.50.30:0/2838166251<http://10.6.50.30:0/2838166251>' entity='mgr.ceph-control-1.nxjnzz' cmd=[{"prefix":"config-key set","key":"mgr/cephadm/spec.osd.osd-spec","val":"{\"created\": \"2021-02-07T00:45:38.108810\", \"spec\": {\"plac
ement\": {\"hosts\": [\"ceph-osd-1\"]}, \"service_id\": \"osd-spec\", \"service_name\": \"osd.osd-spec\", \"service_type\": \"osd\", \"spec\": {\"data_devices\": {\"rotational\": 1}, \"filter_logic\": \"AND\", \"objectstore\": \"bluestore\"}}}"}]: dispatch audit 2021-02-07T00:45:38.110133+0000 mon.ceph-control-1 (mon.0) 107 : audit [INF] from='mgr.24142551 ' entity='mgr.ceph-control-1.nxjnzz' cmd=[{"prefix":"config-key set","key":"mgr/cephadm/spec.osd.osd-spec","val":"{\"created\": \"2021-02-07T00:45:38.108810\", \"spec\": {\"placement\": {\"hosts\": [\"ceph-osd-1\"]}, \"service_id\": \"osd-spec\", \"service_name\": \"osd.osd-spec\", \"service_type\": \"osd\", \"spec\": {\"data_devices\": {\"rotational\": 1}, \"filter_logic\": \"AND\", \"objectstore\": \"bluestore\"}}}"}]: dispatch audit 2021-02-07T00:45:38.152756+0000 mon.ceph-control-1 (mon.0) 108 : audit [INF] from='mgr.24142551 ' entity='mgr.ceph-control-1.nxjnzz' cmd='[{"prefix":"config-key set","key":"mgr/cephadm/spec.osd.osd-
spec","val":"{\"created\": \"2021-02-07T00:45:38.108810\", \"spec\": {\"placement\": {\"hosts\": [\"ceph-osd-1\"]}, \"service_id\": \"osd-spec\", \"service_name\": \"osd.osd-spec\", \"service_type\": \"osd\", \"spec\": {\"data_devices\": {\"rotational\": 1}, \"filter_logic\": \"AND\", \"objectstore\": \"bluestore\"}}}"}]': finished ==========================================
Thanks!
Tony
> -----Original Message-----
> From: Jens Hyllegaard (Soft Design A/S)
> <jens.hyllegaard@xxxxxxxxxxxxx<mailto:jens.hyllegaard@xxxxxxxxxxxxx>>
> Sent: Thursday, February 4, 2021 6:31 AM
> To: ceph-users@xxxxxxx<mailto:ceph-users@xxxxxxx>
> Subject: Re: db_devices doesn't show up in exported osd
> service spec
>
> Hi.
>
> I have the same situation. Running 15.2.8 I created a specification
> that looked just like it. With rotational in the data and
> non-rotational in the db.
>
> First use applied fine. Afterwards it only uses the hdd, and not the ssd.
> Also, is there a way to remove an unused osd service.
> I manages to create osd.all-available-devices, when I tried to stop
> the autocreation of OSD's. Using ceph orch apply osd
> --all-available-devices --unmanaged=true
>
> I created the original OSD using the web interface.
>
> Regards
>
> Jens
> -----Original Message-----
> From: Eugen Block <eblock@xxxxxx<mailto:eblock@xxxxxx>>
> Sent: 3. februar 2021 11:40
> To: Tony Liu <tonyliu0592@xxxxxxxxxxx<mailto:tonyliu0592@xxxxxxxxxxx>>
> Cc: ceph-users@xxxxxxx<mailto:ceph-users@xxxxxxx>
> Subject: Re: db_devices doesn't show up in exported osd
> service spec
>
> How do you manage the db_sizes of your SSDs? Is that managed
> automatically by ceph-volume? You could try to add another config and
> see what it does, maybe try to add block_db_size?
>
>
> Zitat von Tony Liu <tonyliu0592@xxxxxxxxxxx<mailto:tonyliu0592@xxxxxxxxxxx>>:
>
> > All mon, mgr, crash and osd are upgraded to 15.2.8. It actually
> > fixed another issue (no device listed after adding host).
> > But this issue remains.
> > ```
> > # cat osd-spec.yaml
> > service_type: osd
> > service_id: osd-spec
> > placement:
> > host_pattern: ceph-osd-[1-3]
> > data_devices:
> > rotational: 1
> > db_devices:
> > rotational: 0
> >
> > # ceph orch apply osd -i osd-spec.yaml Scheduled osd.osd-spec
> > update...
> >
> > # ceph orch ls --service_name osd.osd-spec --export
> > service_type: osd
> > service_id: osd-spec
> > service_name: osd.osd-spec
> > placement:
> > host_pattern: ceph-osd-[1-3]
> > spec:
> > data_devices:
> > rotational: 1
> > filter_logic: AND
> > objectstore: bluestore
> > ```
> > db_devices still doesn't show up.
> > Keep scratching my head...
> >
> >
> > Thanks!
> > Tony
> >> -----Original Message-----
> >> From: Eugen Block <eblock@xxxxxx<mailto:eblock@xxxxxx>>
> >> Sent: Tuesday, February 2, 2021 2:20 AM
> >> To: ceph-users@xxxxxxx<mailto:ceph-users@xxxxxxx>
> >> Subject: Re: db_devices doesn't show up in exported
> >> osd service spec
> >>
> >> Hi,
> >>
> >> I would recommend to update (again), here's my output from a 15.2.8
> >> test
> >> cluster:
> >>
> >>
> >> host1:~ # ceph orch ls --service_name osd.default --export
> >> service_type: osd
> >> service_id: default
> >> service_name: osd.default
> >> placement:
> >> hosts:
> >> - host4
> >> - host3
> >> - host1
> >> - host2
> >> spec:
> >> block_db_size: 4G
> >> data_devices:
> >> rotational: 1
> >> size: '20G:'
> >> db_devices:
> >> size: '10G:'
> >> filter_logic: AND
> >> objectstore: bluestore
> >>
> >>
> >> Regards,
> >> Eugen
> >>
> >>
> >> Zitat von Tony Liu <tonyliu0592@xxxxxxxxxxx<mailto:tonyliu0592@xxxxxxxxxxx>>:
> >>
> >> > Hi,
> >> >
> >> > When build cluster Octopus 15.2.5 initially, here is the OSD
> >> > service spec file applied.
> >> > ```
> >> > service_type: osd
> >> > service_id: osd-spec
> >> > placement:
> >> > host_pattern: ceph-osd-[1-3]
> >> > data_devices:
> >> > rotational: 1
> >> > db_devices:
> >> > rotational: 0
> >> > ```
> >> > After applying it, all HDDs were added and DB of each hdd is
> >> > created on SSD.
> >> >
> >> > Here is the export of OSD service spec.
> >> > ```
> >> > # ceph orch ls --service_name osd.osd-spec --export
> >> > service_type: osd
> >> > service_id: osd-spec
> >> > service_name: osd.osd-spec
> >> > placement:
> >> > host_pattern: ceph-osd-[1-3]
> >> > spec:
> >> > data_devices:
> >> > rotational: 1
> >> > filter_logic: AND
> >> > objectstore: bluestore
> >> > ```
> >> > Why db_devices doesn't show up there?
> >> >
> >> > When I replace a disk recently, when the new disk was installed
> >> > and zapped, OSD was automatically re-created, but DB was created
> >> > on HDD, not SSD. I assume this is because of that missing db_devices?
> >> >
> >> > I tried to update service spec, the same result, db_devices
> >> > doesn't show up when export it.
> >> >
> >> > Is this some known issue or something I am missing?
> >> >
> >> >
> >> > Thanks!
> >> > Tony
> >> > _______________________________________________
> >> > ceph-users mailing list --
> >> > ceph-users@xxxxxxx<mailto:ceph-users@xxxxxxx> To unsubscribe send
> >> > an email to
> >> > ceph-users-leave@xxxxxxx<mailto:ceph-users-leave@xxxxxxx>
> >>
> >>
> >> _______________________________________________
> >> ceph-users mailing list --
> >> ceph-users@xxxxxxx<mailto:ceph-users@xxxxxxx> To unsubscribe send
> >> an email to
> >> ceph-users-leave@xxxxxxx<mailto:ceph-users-leave@xxxxxxx>
>
>
> _______________________________________________
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