On Tue, Aug 21, 2018 at 9:12 AM Dietmar Rieder
<dietmar.rieder@xxxxxxxxxxx> wrote:
>
> On 08/20/2018 05:36 PM, Ilya Dryomov wrote:
> > On Mon, Aug 20, 2018 at 4:52 PM Dietmar Rieder
> > <dietmar.rieder@xxxxxxxxxxx> wrote:
> >>
> >> Hi Cephers,
> >>
> >>
> >> I wonder if the cephfs client in RedHat/CentOS 7.5 will be updated to
> >> luminous?
> >> As far as I see there is some luminous related stuff that was
> >> backported, however,
> >> the "ceph features" command just reports "jewel" as release of my cephfs
> >> clients running CentOS 7.5 (kernel 3.10.0-862.11.6.el7.x86_64)
> >>
> >>
> >> {
> >> "mon": {
> >> "group": {
> >> "features": "0x3ffddff8eea4fffb",
> >> "release": "luminous",
> >> "num": 3
> >> }
> >> },
> >> "mds": {
> >> "group": {
> >> "features": "0x3ffddff8eea4fffb",
> >> "release": "luminous",
> >> "num": 3
> >> }
> >> },
> >> "osd": {
> >> "group": {
> >> "features": "0x3ffddff8eea4fffb",
> >> "release": "luminous",
> >> "num": 240
> >> }
> >> },
> >> "client": {
> >> "group": {
> >> "features": "0x7010fb86aa42ada",
> >> "release": "jewel",
> >> "num": 23
> >> },
> >> "group": {
> >> "features": "0x3ffddff8eea4fffb",
> >> "release": "luminous",
> >> "num": 4
> >> }
> >> }
> >> }
> >>
> >>
> >> This prevents me to run ceph balancer using the upmap mode.
> >>
> >>
> >> Any idea?
> >
> > Hi Dietmar,
> >
> > All luminous features are supported in RedHat/CentOS 7.5, but it shows
> > up as jewel due to a technicality. Just do
> >
> > $ ceph osd set-require-min-compat-client luminous --yes-i-really-mean-it
> >
> > to override the safety check.
> >
> > See https://www.spinics.net/lists/ceph-users/msg45071.html for details.
> > It references an upstream kernel, but both the problem and the solution
> > are the same.
> >
>
> Hi Ilya,
>
> thank you for your answer.
>
> Just to make sure:
> The thread you are referring to, is about kernel 4.13+, is this also
> true for the "official" RedHat/CentOS 7.5 kernel 3.10
> (3.10.0-862.11.6.el7.x86_64) ?
Yes, it is.
Thanks,
Ilya
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