也可以看我写的下面的博客
Elasticsearch之curl删除
Elasticsearch之curl删除索引库
删除，某一条数据，如下
[hadoop@master elasticsearch-2.4.]$ curl -XDELETE http://master:9200/zhouls/user/1
{"found":true,"_index":"zhouls","_type":"user","_id":"","_version":,"_shards":{"total":,"successful":,"failed":}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
得到
如果我们想要删除的文档存在，则found属性值为true，_version属性的值+1。
如果我们想要删除的文档不存在，found属性值false，但是_version属性的值依然会+1，这个就是内部管理的一部分，它保证了我们在多个节点间的不同操作的顺序都被正确标记了。
比如，如下，是我们在上面已经删除了的文档，可见，它依然还是+1。
[hadoop@master elasticsearch-2.4.]$ curl -XDELETE http://master:9200/zhouls/user/1
{"found":true,"_index":"zhouls","_type":"user","_id":"","_version":,"_shards":{"total":,"successful":,"failed":}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$ curl -XDELETE http://master:9200/zhouls/user/1
{"found":false,"_index":"zhouls","_type":"user","_id":"","_version":,"_shards":{"total":,"successful":,"failed":}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$ curl -XDELETE http://master:9200/zhouls/user/1
{"found":false,"_index":"zhouls","_type":"user","_id":"","_version":,"_shards":{"total":,"successful":,"failed":}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$ curl -XDELETE http://master:9200/zhouls/user/1
{"found":false,"_index":"zhouls","_type":"user","_id":"","_version":,"_shards":{"total":,"successful":,"failed":}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$ curl -XDELETE http://master:9200/zhouls/user/1
{"found":false,"_index":"zhouls","_type":"user","_id":"","_version":,"_shards":{"total":,"successful":,"failed":}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
注意：删除一个文档不会立即生效，它只是被标记成已删除。es将会在你之后添加更多索引的时候才会在后台进行删除内容的清理。
官网
https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-delete.html