We are using 1.13.1 Kubernetes and etcd 3.3.9. As we are doing negative testing for production readiness. During the test we observed that whenever etcd leader goes down abruptly, all the calls coming to nginx which we are running on K8 are failing. After some time the all the calls are flowing fine.
During that time we are not able to execute “kubectl get pods” commad as well. APIserver was freezed for few seconds. Is this expected behaviour with apiserver when etcd leader goes down. ?
Can some one help on this issue.
etcd - 3 node cluster
K8 - 6 node cluster.