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Cluster information:
Kubernetes version:1.16.2
Cloud being used: Openstack
Installation method: Kubeadm
Host OS: Ubuntu
CNI and version: Calico 3.2
CRI and version: Docker 18.9
ubuntu@-data-master-3:~$ curl -k https://10.192.1.24:6443/readyz
[+]ping ok
[+]log ok
[+]etcd ok
[-]informer-sync failed: reason withheld
[+]poststarthook/start-kube-apiserver-admission-initializer ok
[+]poststarthook/generic-apiserver-start-informers ok
[+]poststarthook/priority-and-fairness-config-consumer ok
[+]poststarthook/priority-and-fairness-filter ok
[+]poststarthook/start-apiextensions-informers ok
[+]poststarthook/start-apiextensions-controllers ok
[+]poststarthook/crd-informer-synced ok
[+]poststarthook/bootstrap-controller ok
[+]poststarthook/rbac/bootstrap-roles ok
[+]poststarthook/scheduling/bootstrap-system-priority-classes ok
[+]poststarthook/priority-and-fairness-config-producer ok
[+]poststarthook/start-cluster-authentication-info-controller ok
[+]poststarthook/aggregator-reload-proxy-client-cert ok
[+]poststarthook/start-kube-aggregator-informers ok
[+]poststarthook/apiservice-registration-controller ok
[+]poststarthook/apiservice-status-available-controller ok
[+]poststarthook/kube-apiserver-autoregistration ok
[+]autoregister-completion ok
[+]poststarthook/apiservice-openapi-controller ok
[+]shutdown ok
readyz check failed
kubectl describe pod
Warning Unhealthy 3m18s (x4315492 over 49d) kubelet Readiness probe failed: HTTP probe failed with statuscode: 500