不爲也 比不能也

What If..."What if" questions are fun. "What if you had a time machine: when would you visit?" "What if you had one wish and it would come true: what would it be?" They're the types of hypothetical questions you can ask at a dinner party and get insights about what interests and motives somebody has if barriers were broken down. A few years ago at Elastic, we asked ourselves a "what if" that we ..

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..

Use Accept header for specifying response media typeeditPrevious versions of Elasticsearch accepted the Content-type header field for controlling the media type of the response in the cat API. This is in opposition to the HTTP spec which specifies the Accept header field for this purpose. Elasticsearch now uses the Accept header field and support for using the Content-Type header field for this ..