不爲也 比不能也

From Elasticsearch 5.0 on all settings are validated before they are applied. Node level and default index level settings are validated on node startup, dynamic cluster and index setting are validated before they are updated/added to the cluster state.Elasticsearch 5.0 부터 모든 설정의 적용되기 전에 유효성을 검사한다. node level과 index level 설정은 시작 시에 유효성이 검사되고, 동적 cluster 및 index 설정은 cluster state에 업데이트/추가되기 전에 유효성..

Bind to localhosteditElasticsearch 2.x will only bind to localhost by default. It will try to bind to both 127.0.0.1 (IPv4) and [::1] (IPv6), but will work happily in environments where only IPv4 or IPv6 is available. This change prevents Elasticsearch from trying to connect to other nodes on your network unless you specifically tell it to do so. When moving to production you should configure th..