Re: Erasure coded pools and 'feature set mismatch' issue

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On Mon, Nov 9, 2015 at 10:44 AM, Bogdan SOLGA <bogdan.solga@xxxxxxxxx> wrote:
> Hello Adam!
>
> Thank you very much for your advice, I will try setting the tunables to
> 'firefly'.

Won't work.  OS Recommendations page clearly states that firefly
tunables are supported starting with 3.15.  3.13, which came out
5 months (and was frozen 7 months) before firefly release, cannot
possibly support it.

>
> As there seem to be a few features which would require the 4.1 kernel... is
> there any 'advised' Linux distribution on which Ceph is known to work best?
> According to this page... it seems to be most tested on Ubuntu 14.04 and
> CentOS 7, although both are on the 3.1x kernel.
>
> Sorry if this topic was previously discussed, I might have missed it.

You can install an ubuntu kernel from a newer ubuntu release, or pretty
much any mainline kernel from kernel-ppa.

Thanks,

                Ilya
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