On Thu, Dec 6, 2018 at 4:22 AM Ashley Merrick <singap...@amerrick.co.uk> wrote:
>
> Hello,
>
> As mentioned earlier the cluster is seperatly running on the latest mimic.
>
> Due to 14.04 only supporting up to Luminous I was running the 12.2.9 version
> of ceph-common for the rbd binary.
>
> This is what was upgraded when I did the dist-upgrade on the VM mounting the
> RBD.
>
> The cluster it self has not changed and has always been running the latest
> point release on mimic.
>
> All that changed was the move of ceph-common and dependencies on the mounting
> VM.
>
> 12.2.9 + 4.12 Kernel was able to mount a Mimic EC backed RBD via KRBD, since
> 12.2.10 I now get the error.
>
> So to me looks like there was a client side change from .9 to .10 as no
> change cluster side.
The error is coming from the kernel, not from "rbd map". "rbd map"
doesn't really do much beyond gathering options and setting up the
keys. I don't think the client side ceph upgrade is the root cause
here.
You didn't answer my other question: what is the output of "ceph osd
get-require-min-compat-client"?
Thanks,
Ilya
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