Thanks! However, I still don't really understand why I am seeing this. The first time I had this, one of the clients was a remote user dialling in via VPN, which could indeed be laggy. But I am also seeing it from neighbouring hosts that are on the same physical network with reliable ping times way below 1ms. How is that considered laggy? On 18/09/2023 18:07, Laura Flores wrote:
Hi Janek,
There was some documentation added about it here: https://docs.ceph.com/en/pacific/cephfs/health-messages/
There is a description of what it means, and it's tied to an mds configurable.
On Mon, Sep 18, 2023 at 10:51 AM Janek Bevendorff <janek.bevendorff@uni-weimar.de> wrote:
Hey all,
Since the upgrade to Ceph 16.2.14, I keep seeing the following warning:
10 client(s) laggy due to laggy OSDs
ceph health detail shows it as:
[WRN] MDS_CLIENTS_LAGGY: 10 client(s) laggy due to laggy OSDs mds.***(mds.3): Client *** is laggy; not evicted because some OSD(s) is/are laggy more of this...
When I restart the client(s) or the affected MDS daemons, the message goes away and then comes back after a while. ceph osd perf does not list any laggy OSDs (a few with 10-60ms ping, but overwhelmingly < 1ms), so I'm on a total loss what this even means.
I have never seen this message before nor was I able to find anything about it. Do you have any idea what this message actually means and how I can get rid of it?
Thanks Janek
_______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
--
Laura Flores
She/Her/Hers
Software Engineer, Ceph Storage <https://ceph.io>
Chicago, IL
lflores@ibm.com | lflores@redhat.com <mailto:lflores@redhat.com> M: +17087388804 <tel:+17087388804>
-- Bauhaus-Universität Weimar Bauhausstr. 9a, R308 99423 Weimar, Germany Phone: +49 3643 58 3577 www.webis.de