Elasticsearch 7.2.0: master not discovered or elected yet, an election requires at least X nodes
问题 I'm trying to automate the process of horizontal scale up and scale down of elasticsearch nodes in kubernetes cluster. Initially, I deployed an elasticsearch cluster (3 master, 3 data & 3 ingest nodes) on a Kubernetes cluster. Where, cluster.initial_master_nodes was: cluster.initial_master_nodes: - master-a - master-b - master-c Then, I performed scale down operation, reduced the number of master node 3 to 1 (unexpected, but for testing purpose). While doing this, I deleted master-c , master