1.命令
curl -X POST "192.168.1.111:9200/mytest/_forcemerge?pretty"
https://blog.csdn.net/MEIYOUDAO_JIUSHIDAO/article/details/103579343
https://www.elastic.co/guide/en/elasticsearch/reference/6.8/indices-forcemerge.html
https://blog.csdn.net/sinat_16658263/article/details/90444038 原理
原文：https://www.cnblogs.com/hixiaowei/p/12550675.html