Hello all, We have a production cluster running since weeks deployed on centos8 with |cephadm| (3 nodes with 6x12TB HDD each, one |mon| and one |mgr| on each node too). Today, the "master" node (the from on which I run all the setup commands) crashed so I rebooted the server. Now, all ceph commands hangs (|ceph -s| for ex), when I do |cephadm shell| it asks me to specify the FSID (showing me 3 fsid) and in the logs of the unit |ceph-<FSID>@mon.ceph-n-01.service| I get this line looping : |Dec 10 16:13:07 ceph-n-01 bash[36847]: debug 2020-12-10T16:13:07.099+0000 7f9251890700 0 cephx: verify_authorizer could not decrypt ticket info: error: bad magic in decode_decrypt, 924161695680779075 != 18374858748799134293 Dec 10 16:13:10 ceph-n-01 bash[36847]: debug 2020-12-10T16:13:10.288+0000 7f9251890700 1 mon.ceph-n-01@0(probing) e3 handle_auth_request failed to assign global_id | Thanks for all your help :)