Using Ceph v1.14.10, Rook v1.3.8 on k8s 1.16 on-premise. After 10 days without any trouble, we decided to drain some nodes, then, all moved pods cant attach to their PV any more, look like Ceph cluster is broken:
My ConfigMap rook-ceph-mon-endpoints
is referencing 2 missing mon pod IPs:
csi-cluster-config-json: '[{"clusterID":"rook-ceph","monitors":["10.115.0.129:6789","10.115.0.4:6789","10.115.0.132:6789"]}]
But
kubectl -n rook-ceph get pod -l app=rook-ceph-mon -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
rook-ceph-mon-e-56b849775-4g5wg 1/1 Running 0 6h42m 10.115.0.2 XXXX <none> <none>
rook-ceph-mon-h-fc486fb5c-8mvng 1/1 Running 0 6h42m 10.115.0.134 XXXX <none> <none>
rook-ceph-mon-i-65666fcff4-4ft49 1/1 Running 0 30h 10.115.0.132 XXXX <none> <none>
Is it normal or I must run a kind of "reconciliation" task to update the CM with new mon pod IPs ?
(could be related to https://github.com/rook/rook/issues/2262)
I had to manualy update:
- secret rook-ceph-config
- cm rook-ceph-mon-endpoints
- cm rook-ceph-csi-config
As @travisn said: