On Thu, Dec 6, 2018 at 4:22 AM Ashley Merrick <singapore@xxxxxxxxxxxxxx> 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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