Re: hammer -> jewel 10.2.8 upgrade and setting sortbitwise

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Hi Dan,

I've enabled it in a couple of big-ish clusters and had the same
experience - a few seconds disruption caused by a peering process
being triggered, like any other crushmap update does. Can't remember
if it triggered data movement, but I have a feeling it did...



On Mon, Jul 10, 2017 at 3:17 PM, Dan van der Ster <dan@xxxxxxxxxxxxxx> wrote:
> Hi all,
>
> With 10.2.8, ceph will now warn if you didn't yet set sortbitwise.
>
> I just updated a test cluster, saw that warning, then did the necessary
>   ceph osd set sortbitwise
>
> I noticed a short re-peering which took around 10s on this small
> cluster with very little data.
>
> Has anyone done this already on a large cluster with lots of objects?
> It would be nice to hear that it isn't disruptive before running it on
> our big production instances.
>
> Cheers, Dan
> _______________________________________________
> ceph-users mailing list
> ceph-users@xxxxxxxxxxxxxx
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