If the ceph roadmap is getting rid of named clusters, how will multiple clusters be supported? How (for instance) would `/var/lib/ceph/mon/{name}` directories be resolved?
> On Mar 11, 2020, at 8:29 PM, Brian Topping <brian.topping@xxxxxxxxx> wrote:
>
>> On Mar 11, 2020, at 7:59 PM, Anthony D'Atri <anthony.datri@xxxxxxxxx> wrote:
>>
>>> This is all possible with a single cluster, but this limited node also needs storage.
>>
>> Are you saying that the limited node needs to access Ceph-based storage? Is this some sort of converged architecture?
>
> It is a converged architecture in that all three boxes are running Kubernetes. There is one k8s cluster on each side of the link, let’s call them “primary” and “secondary”:
> * The primary k8s cluster will only access storage from the primary Ceph cluster, secondary k8s only accesses storage from secondary Ceph.
> * Primary Ceph gets monitors on both sides of the link. Secondary Ceph only has monitors on the secondary side.
>
> In a netsplit situation, the primary Ceph will maintain quorum with both nodes on the primary side. The secondary Ceph cluster only exists separately for this netsplit situation and the secondary k8s cluster can continue unaffected.
>
> With this in place, the primary side can continue operating with either primary node downed for maintenance via a suboptimal quorum over the WAN link. I cannot do that today.
>
> I am sacrificing the case where there is a netsplit at the same time I am doing maintenance.
>
> Thanks for your input!
> Brian
>
>
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