rbd mapで feature set mismatch, my 106b84a842a42 < server's 40106b84a842a42, missing 400000000000000 missing required protocol features となったら ceph osd crush tunables hammer 結果の確認は ceph osd crush show-tunables で { "choose_local_…

mapした時に RBD image feature set mismatch. You can disable features unsupported by the kernel with "rbd feature disable". が出たら rbd create samplerbd --size 250 --image-feature layering でcreateしてからやってみる。

kubeadm init で "systemd" is different from docker cgroup driver: "cgroupfs". が表示された際の対応メモ kind: ClusterConfiguration apiVersion: kubeadm.k8s.io/v1beta3 apiServer: certSANs: - "kubernetes-api.local" controlPlaneEndpoint: "kuber…