ElasticSearch to MySQL ETL준비curl : Http 기반 ElasticSearch Query (SQL)jq : ElasticSearch 결과 JSON 변환 (NDJSON)mysql-shell : MySQL 데이터 Bulk Insert (Json 타입의 Table)ElasticSearch Query curl쿼리 후, 해당 내용 JSON 저장 $ curl -s -XPOST -H 'content-type: application/json' \ -d '{"query" : "select timestamp, activesession, loadavg, processor from \"mysql-perf-*\" limit 100"}' \ 'http://elasticsearch-server:..