Dear Ilya, thanks for the quick response. Good to know that it is harmless. It is very irritating though. I did maintenance some time ago adding lots of new disks and restarting the MDSses and the system got a bit stressed. These messages started to run over the root console with such a frequency that I could hardly type commands and read output. Would be great if you could push this patch to the latest stable kernel. Thanks and best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 ________________________________________ From: Ilya Dryomov <idryomov@gmail.com> Sent: 24 February 2021 16:47:38 To: Frank Schilder Cc: ceph-users@ceph.io; Jeff Layton Subject: Re: [ceph-users] kernel: ceph: mdsmap_decode got incorrect state(up:standby-replay) On Wed, Feb 24, 2021 at 4:09 PM Frank Schilder <frans@dtu.dk> wrote:

Hi all,

I get these log messages all the time, sometimes also directly to the terminal:

kernel: ceph: mdsmap_decode got incorrect state(up:standby-replay)

The cluster is healthy and the MDS complaining is actually both, configured and running as a standby-replay daemon. These messages show up at least every hour, but sometimes with much higher frequency. The cluster seems healthy though.

A google search did not bring up anything useful.

Can anyone shed some light on what this message means?

Hi Frank, It should be harmless. This warning was removed in kernel 5.11. Jeff, we should probably push that patch to stable kernels. Thanks, Ilya