Elasticsearch ships with very good defaults, especially when it comes to performance- related settings and options. When in doubt, just leave the settings alone. We have witnessed countless dozens of clusters ruined by errant settings because the administrator thought he could turn a knob and gain 100-fold improvement.Elasticsearch는, 특히 성능과 관련된 설정과 옵션에서, 아주 훌륭한 기본값을 가지고 있다. 확신할 수 없다면, 설정을 그대로 두자..