On Tue, Apr 7, 2020 at 3:36 AM alean Huang <woal...@gmail.com> wrote:
>
> hi,
>    i am appreciate you work very much, there is a problem about ceph mds i 
> meet.
>    ceph version: luminous
>    the mds cache grow to 20G and limit is 4G after 'stat *'  from client 
> which mount by kernel(centos7 , 4.14).
>    there are 1000w files in this dir. mds log show recall_client_state does 
> not work after recall some caps.
>
>    log is like this:
>    2020-04-07 17:08:36.841304 7f23ddd15700 10 mds.2.server 
> recall_client_state: session client.2366013 172.16.200.20:0/4162573294 caps 
> 6801282, leases 0
>    2020-04-07 17:08:36.841323 7f23ddd15700 15 mds.2.server   session recall 
> threshold (16384) hit at 0; skipping!
>    2020-04-07 17:08:36.841326 7f23ddd15700  7 mds.2.server recalled 
> (throttled) 0 client caps.
>
>    mds_recall_max_decay_rate = 2.5

It looks like your setting for mds_recall_max_caps is larger than
mds_recall_max_decay_threshold. Are you changing these configurations?
If so, why?

-- 
Patrick Donnelly, Ph.D.
He / Him / His
Senior Software Engineer
Red Hat Sunnyvale, CA
GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
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