너구리의 IT 잡동사니

자바 데이터 타입 Type size Default Min Max byte 8-bit 0 -128 127 short 16-bit 0 -32,768 32,767 int 32-bit 0 2-31 231-1 long 64-bit 0L -263 264-1 float 32-bit 0.0f double 64-bit 0.0d boolean isn't precisely defined. false char 16-bit '\u0000' '\u0000' '\uffff' 참고자료 - https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

템플릿 설정 api PUT http://localhost:9200/_template/my-log-index header Content-type: application/json body { "order": 0, "index_patterns": [ "my-log-index-*" ], "settings": { "index": { "number_of_shards": "20", "number_of_replicas": "0", "refresh_interval": "30s", "lifecycle": { "name": "my-log-index" } } }, "mappings": { "properties": { "user_number": { "type": "long" }, "user_name": { "type": "ke..