[상황] elasticsearch 설치 후, kibana 실행 시 오류 발생 (버전 7.17.0) [오류로그] path: /_template/kibana_index_template*, params: {name=kibana_index_template*} org.elasticsearch.discovery.MasterNotDiscoveredException: null at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction$2.onTimeout(TransportMasterNodeAction.java:297) [elasticsearch-7.17.0.jar:7.17.0] at org.elasticsearch.clus..