On 08/21/2018 02:22 PM, Ilya Dryomov wrote:
> 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
Dietmar
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