ELK: KQL学习清单

1. 获取Es所有的索引库 index ：GET _cat/indices
2. 查看集群健康：GET _cluster/health
3. 获取指定 Index 下所有 字段 fields 的 类型 type：GET /ecommerce/_mapping
4. 查询 索引库  index定义：GET /ecommerce
5. 添加数据，自动创建 索引库 ecommerce

   PUT /ecommerce/product/1
   {
       "name" : "gaolujie yagao",
       "desc" :  "gaoxiao meibai",
       "price" :  30,
       "producer" :      "gaolujie producer",
       "tags": [ "meibai", "fangzhu" ]
   }
   PUT /ecommerce/product/2
   {
       "name" : "jiajieshi yagao",
       "desc" :  "youxiao fangzhu",
       "price" :  25,
       "producer" :      "jiajieshi producer",
       "tags": [ "fangzhu" ]
   }
   PUT /ecommerce/product/3
   {
       "name" : "zhonghua yagao",
       "desc" :  "caoben zhiwu",
       "price" :  40,
       "producer" :      "zhonghua producer",
       "tags": [ "qingxin" ]
   }

6. 删除 索引库：DELETE /ecommerce
7.  
8.