On Mon, Aug 20, 2018 at 5:37 PM Ilya Dryomov <idryomov@xxxxxxxxx> 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.
Except rados namespaces, right? Manila CephFS shares are not yet
mountable with 7.5.
Cheers, Dan
-- dan
> 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.
>
> Thanks,
>
> Ilya
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