[ceph-users] feature set mismatch CEPH_FEATURE_MON_GV kernel 5.0?

[Philippe D'Anjou]

So it seems like for some reason librados is used now instead of kernel module, 
and this produces the error. But we have all latest Nautilus repos installed on 
the clients...so why would librados throw a compatiblity issue?Client 
compatiblity level is set to Luminous.
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[ceph-users] feature set mismatch CEPH_FEATURE_MON_GV kernel 5.0?

[Philippe D'Anjou]

Hi,
we're on v14.2.4 and nothing but that. All clients and servers run kernel 
ubuntu 18.04 LTS 5.0.0-20.
We're seeing this error:
    MountVolume.WaitForAttach failed for volume 
"pvc-45a86719-edb9-11e9-9f38-02000a030111" : fail to check rbd image status 
with: (exit status 110), rbd output: (2019-10-31 06:17:53.295823 7ff74ecea700 0 
-- 10.3.3.56:0/2361280277 >> 10.3.2.3:6789/0 pipe(0x561d0ab0 sd=3 :51770 
s=1 pgs=0 cs=0 l=1 c=0x561d0888a5f0).connect protocol feature mismatch, my 
27ffefdfbfff < peer 27fddff8efacbfff missing 20 2019-10-31 
06:17:53.295884 7ff74ecea700 0 -- 10.3.3.56:0/2361280277 >> 10.3.2.3:6789/0 
pipe(0x561d0ab0 sd=3 :51770 s=1 pgs=0 cs=0 l=1
Following 
https://ceph.io/geen-categorie/feature-set-mismatch-error-on-ceph-kernel-client/
 this means (it's very old but the only info I found)


CEPH_FEATURE_MON_GV is missing? But that makes no sense. 

Can someone enlighten me please? Client compatiblity is set to Luminous to use 
upmap for pg balancer.
Thanks



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