Re: Can I rebuild object maps while VMs are running ?

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Le 05/03/2016 09:35, Lindsay Mathieson a écrit :
> On 5/03/2016 3:31 AM, Christoph Adomeit wrote:
>> I just updated our ceph-cluster to infernalis and now I want to
>> enable the new image features.
>
>
> Semi related - is there a description of these new features some where?
>

Been there, done that, corrupted RBDs. ;)

I think the object-map rebuild action takes the same exclusive lock you
just added to the RBD.

The disk was unavailable in the VM even once the object-map completed.

Cleanly poweroff your VMs, kids. :)
Only then, operate your open heart surgery on the RBDs.
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