[pve-devel] question about pve-qemu && librbd

[Alexandre DERUMIER]

>>there might be some yet undiscovered incompatibility when mixing versions like
>>that (there are other ceph libraries with reverse-dependencies to
>>consider as well)

But proxmox 5.0 ceph-server only support luminous, right ?
so, I think it shouldn't be a problem ?


and from client side, librbd is backward compatible to connect on older cluster (I have tested lirbd luminous to jewel && hammer cluster without any problem)


----- Mail original -----
De: "Fabian Grünbichler" <f.gruenbichler at proxmox.com>
À: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Lundi 25 Septembre 2017 08:15:37
Objet: Re: [pve-devel] question about pve-qemu && librbd

On Mon, Sep 25, 2017 at 07:22:27AM +0200, Alexandre DERUMIER wrote: 
> I have tested pve-qemu-kvm builded with last librbd-dev, and it's working fine also with jewel cluster. 
> 
> 
> Could we bump dependencies && dev dependencies of debian pve-qemu package to last librbd ? 
> 
> (maybe put tha last librbd in proxmox main repo, as currently it's only in proxmox ceph repo ?) 

yes, all of our PVE packages are built with stock Debian Stretch + PVE 
repositories, but without the optional ceph-luminous repository. I am 
not sure about moving librbd1 (and librbd-dev) to the PVE repo, there 
might be some yet undiscovered incompatibility when mixing versions like 
that (there are other ceph libraries with reverse-dependencies to 
consider as well), and then we'd have to move more and more packages to 
work around that.. 

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