Re: Luminous : 3 clients failing to respond to cache pressure

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>> I have a luminous (12.2.1) cluster with 3 nodes for cephfs (no rbd or rgw) and we hit the "X clients failing to respond to cache pressure" message.
>> I have 3 mds servers active.
> 
> What type of client? Kernel? FUSE?
> 
> If it's a kernel client, what kernel are you running?

kernel client, version 4.10.0-35-generic, it's for kubernetes environment

https://kubernetes.io/docs/concepts/storage/volumes/#cephfs
https://github.com/kubernetes/examples/tree/master/staging/volumes/cephfs/

containers use this yaml template :

https://github.com/kubernetes/examples/blob/master/staging/volumes/cephfs/cephfs.yaml

-- 
Yoann Moulin
EPFL IC-IT
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