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) ?
Best
Dietmar
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