The hosts got put there because OSDs started for the first time on a server
with that name. If you name the new servers identically to the failed ones,
the new osds will just place themselves under the host in the crush map and
everything will be fine. There shouldn't be any problems with that based on
what you've said of the situation.
On Fri, Dec 22, 2017, 9:00 PM Brent Kennedy wrote:
> Been looking around the web and I cant find a what seems to be “clean way”
> to remove an OSD host from the “ceph osd tree” command output. I am
> therefore hesitant to add a server with the same name, but I still see the
> removed/failed nodes from the list. Anyone know how to do that? I found
> an article here, but it doesn’t seem to be a clean way:
> https://arvimal.blog/2015/05/07/how-to-remove-a-host-from-a-ceph-cluster/
>
>
>
> Regards,
>
> -Brent
>
>
>
> Existing Clusters:
>
> Test: Jewel with 3 osd servers, 1 mon, 1 gateway
>
> US Production: Firefly with 4 osd servers, 3 mons, 3 gateways behind
> haproxy LB
>
> UK Production: Hammer with 5 osd servers, 3 mons, 3 gateways behind
> haproxy LB
>
>
>
>
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>
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