Gluster users - Oct 2015 - Importing bricks/datastore into new gluster

On 10/12/2015 05:09 AM, Lindsay Mathieson wrote:
> Contemplating upgrading my proxmox clusterby a major revision, which 
> unfortunately basically involves destroying and recreating each node. 
> A major PITA.
>
> The gluster bricks are all sitting on top of ZFS, so its easy enough 
> to preserve their data across the reinstall, but I will have to 
> reinstall gluster and recreate the setup (peers, datastore etc).
I didn't understand the reason for recreating the setup. Is upgrading 
rpms/debs not enough?

Pranith
>
> Can I safely recreate the bricks on top of the existing datastructure 
> and avoid restoring/resyncing all the data (2.5TB). I'm worried about 
> inadvertently creating a splitbrain problem.
>
> If its risky I can just create a empty gluster datastore, then move 
> the data onto one node and allow it to sync to the others over the 
> weekend, only 1GB Ethernet unfortunately :(
>
> -- 
> Lindsay
>
>
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On 14 October 2015 at 15:17, Pranith Kumar Karampuri <pkarampu at
redhat.com>
wrote:
> I didn't understand the reason for recreating the setup. Is upgrading
> rpms/debs not enough?
>
> Pranith
>
The distro I'm using (Proxmox/Debian) broke backward compatibility with
their latest major upgrade, essentially you have to reinstall. I'm taking
advantage of that to improve my installations as well - switch to ZFS root
etc.

Not going to do it for weeks yet, still in planning stage.

thanks,

-- 
Lindsay
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