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【云知易】Elasticsearch服务入门 01 快速开始使用ES

阅识风云发表于 2017/10/24 11:45:37 2017/10/24

9.2k+ 0 2

【摘要】本文为大家科普下使用Elasticsearch服务的具体过程。

前言
对于新上手的用户，可能还不太清楚如何使用Elasticsearch服务，今天就为大家科普下使用Elasticsearch服务的具体过程，在此之前，先讲下使用Elasticsearch服务搜索数据的基本流程，如下所示：

第一步：新建集群
第二步：接入集群
第三步：定义数据
第四步：加载数据建立索引
第五步：搜索数据
第六步：删除集群

为了方便大家了解使用过程，我们以如下业务场景来模拟用户的需求场景和使用场景。

场景描述
某服装品牌在电商网站上经营业务，主要销售适合春夏秋冬四季穿戴的男装和女装。为了更好地了解商品的销售状况，该店铺开始使用Elasticsearch服务来进行商品月销量查询、商品价格查询、商品名称查询等，通过查询结果来充分了解目前的经营状况，进而更准确地进行决策和管理。
店铺提供的商品数据（JSON格式，文件名为“products.json”）部分内容如下所示：

[{"_id":"1","price":"100","productID":"XHDK-A-1293-#fJ3","time":"2017-09-01","level":"2","productName":"2017秋装新款文艺衬衫女装","productType1":"象牙白","productType2":"M","monthlySales":"328","commentTime":"2017-09-04","commentNum":"715","commentConetnt":"衣服真的超级好看"}, 
{"_id":"2","price":"205","productID":"KDKE-B-9947-#kL5","time":"2017-09-01","level":"2","productName":"2017秋装新款文艺针织毛衫女装"","productType1":"玫瑰红","productType2":"L","monthlySales":"584","commentTime":"2017-09-05","commentNum":"406","commentConetnt":"卖家包装精致"}, 
{"_id":"3","price":"300","productID":"JODL-X-1937-#pV7","time":"2017-09-01","level":"2","productName":"2017秋装新款文艺T恤男装","productType1":"午夜黑","productType2":"XL","monthlySales":"1245","commentTime":"2017-09-03","commentNum":"502","commentConetnt":"衣服质量不错啊"}, 
{"_id":"4","price":"310","productID":"QQPX-R-3956-#aD8","time":"2017-09-02","level":"2","productName":"2017秋装新款文艺风衣外套女装","productType1":"宝石蓝","productType2":"L","monthlySales":"411","commentTime":"2017-09-05","commentNum":"436","commentConetnt":"关注店家很久了"}, 
{"_id":"5","price":"150","productID":"ABEF-C-1820-#mC6","time":"2017-09-03","level":"2","productName":"2017秋装新款文艺牛仔裤女装","productType1":"海军蓝","productType2":"M","monthlySales":"1223","commentTime":"2017-09-06","commentNum":"1200","commentConetnt":"买到真的很惊喜"}, 
{"_id":"6","price":"200","productID":"BCQP-E-2365-#qE4","time":"2017-09-04","level":"2","productName":"2017秋装新款文艺休闲裤男装","productType1":"海军蓝","productType2":"L","monthlySales":"997","commentTime":"2017-09-10","commentNum":"301","commentConetnt":"打开包装，衣服没有异味"}, 
{"_id":"7","price":"250","productID":"EABE-D-1476-#oB1","time":"2017-09-10","level":"2","productName":"2017秋装新款文艺连衣裙女装","productType1":"青绿色","productType2":"S","monthlySales":"841","commentTime":"2017-09-15","commentNum":"299","commentConetnt":"很喜欢的衣服"}, 
{"_id":"8","price":"108","productID":"CDXK-F-1527-#pL2","time":"2017-09-11","level":"2","productName":"2017秋装新款文艺半身群女装","productType1":"棕色","productType2":"M","monthlySales":"85","commentTime":"2017-09-14","commentNum":"22","commentConetnt":"衣服买小了"}, 
{"_id":"9","price":"450","productID":"MMCE-H-4728-#nP9","time":"2017-09-11","level":"2","productName":"2017秋装新款文艺羽绒服女装","productType1":"白色","productType2":"M","monthlySales":"114","commentTime":"2017-09-14","commentNum":"22","commentConetnt":"衣服超厚，今年冬天好过了"}, 
{"_id":"10","price":"260","productID":"OCDA-G-2817-#bD3","time":"2017-09-12","level":"2","productName":"2017秋装新款文艺毛呢外套女装","productType1":"灰色","productType2":"L","monthlySales":"2004","commentTime":"2017-09-15","commentNum":"826","commentConetnt":"这样的价格很划算"}, 
{"_id":"11","price":"980","productID":"ZKDS-J-5490-#cW4","time":"2017-09-13","level":"2","productName":"2017秋装新款文艺棉服女装","productType1":"白色","productType2":"M","monthlySales":"112","commentTime":"2017-09-16","commentNum":"219","commentConetnt":"衣服穿着很舒服"}, 
{"_id":"12","price":"98","productID":"FKQB-I-2564-#dA5","time":"2017-09-15","level":"2","productName":"2017秋装新款文艺打底裤女装","productType1":"黑色","productType2":"M","monthlySales":"4345","commentTime":"2017-09-18","commentNum":"5473","commentConetnt":"这条裤子买了两条"}, 
{"_id":"13","price":"150","productID":"DMQY-K-6579-#eS6","time":"2017-09-21","level":"2","productName":"2017秋装新款文艺女鞋","productType1":"白色","productType2":"37","monthlySales":"2840","commentTime":"2017-09-25","commentNum":"5831","commentConetnt":"鞋子很好穿"}, 
{"_id":"14","price":"200","productID":"GKLW-l-2897-#wQ7","time":"2017-09-22","level":"2","productName":"2017秋装新款文艺男鞋","productType1":"白色","productType2":"39","monthlySales":"5879","commentTime":"2017-09-25","commentNum":"7200","commentConetnt":"鞋子很舒服"}, 
{"_id":"15","price":"300","productID":"HWEC-L-2531-#xP8","time":"2017-09-23","level":"2","productName":"2017秋装新款阔腿裤女装","productType1":"黑色","productType2":"M","monthlySales":"403","commentTime":"2017-09-26","commentNum":"607","commentConetnt":"款型很好看"}, 
{"_id":"16","price":"100","productID":"IQPD-M-3214-#yQ1","time":"2017-09-24","level":"2","productName":"2017秋装新款配雪纺衫","productType1":"乳白色","productType2":"M","monthlySales":"3045","commentTime":"2017-09-27","commentNum":"5021","commentConetnt":"卖家服务态度真好"}, 
{"_id":"17","price":"350","productID":"LPEC-N-4572-#zX2","time":"2017-09-25","level":"2","productName":"2017秋装新款皮衣女装","productType1":"黑色","productType2":"M","monthlySales":"239","commentTime":"2017-09-28","commentNum":"407","commentConetnt":"好评，价格实惠"}, 
{"_id":"18","price":"110","productID":"NQAB-O-3768-#sM3","time":"2017-09-26","level":"2","productName":"2017秋装新款内衣女装","productType1":"白色","productType2":"S","monthlySales":"6089","commentTime":"2017-09-29","commentNum":"7021","commentConetnt":"颜色很好，做工也不错"}, 
{"_id":"19","price":"210","productID":"HWNB-P-7879-#tN4","time":"2017-09-27","level":"2","productName":"2017秋装新款内衣男装","productType1":"白色","productType2":"L","monthlySales":"3201","commentTime":"2017-09-30","commentNum":"4059","commentConetnt":"我很喜欢，质量也不错"}, 
{"_id":"20","price":"230","productID":"JKHU-Q-8865-#uO5","time":"2017-09-29","level":"2","productName":"2017秋装新款文艺牛仔裤男装","productType1":"天蓝色","productType2":"M","monthlySales":"2056","commentTime":"2017-10-02","commentNum":"3842","commentConetnt":"衣服穿了几天了，洗过一次，好像没缩水"}]

新建集群
在使用Elasticsearch服务正式搜索数据之前，需要店铺使用者新建一个Elasticsearch集群，新建一个名称为“Sample-ESCluster”的集群。

1. 登录ES管理控制台。
2. 在“总览”或者“集群管理”页面，单击“创建搜索集群”，进入新建集群页面。
3. 在“基本信息”区域，输入“集群名称”，选择“可用区域”和“搜索引擎版本”。
4. 在“主机规格”区域，指定"节点数量"、“节点规格”、“存储类型”和“存储空间”。
5. 在“网络”区域，指定“虚拟私有云”、“子网”和“安全组”。
6. 单击“立即申请”，进入规格确认界面。
7. 规格确认完成后，勾选“我已经阅读并接受《公测免费使用服务条款协议》”，然后单击“提交申请”开始创建集群。
8. 系统将自动跳转到集群列表页面，您创建的集群将展现在集群列表中。且集群状态为“创建中”，耐心等待几分钟，创建成功后集群状态会变为“服务中”。

如果集群创建失败，请根据界面提示，重新创建集群。

集群新建完成后，通过集群列表，查看“Sample-ESCluster”的集群内网访问地址。如下图所示，集群内网访问地址包含集群IP和端口号，如集群IP为192.168.0.138，访问Elasticsearch需要使用端口9200，访问Kibana请使用端口5601。

接入集群
在集群创建完成后，需要申请一台弹性云主机接入集群，进行后续操作。
请访问此链接申请一台Windows操作系统的弹性云主机，http://www.huaweicloud.com/product/ecs.html。
新申请的弹性云主机需满足如下要求：

1. 操作系统为Windows。
2. 与上文创建的集群，在相同的可用区域（AZ）、相同网段、相同虚拟私有云（VPC）以及相同安全组。
3. 请按照界面指导，为此弹性云服务器申请弹性IP。
4. 按照弹性云主机的操作指导，为弹性云主机申请支持“密码方式登录Windows弹性云服务器”。

下面介绍如何使用新申请的弹性云主机访问集群。

1. 在本地使用mstsc和弹性IP远程登录此弹性云主机，或者在华为云弹性云主机的管理控制台，在此弹性云主机行中单击“远程登录”直接访问此弹性云主机。
2. 从互联网下载一个浏览器，只要浏览器满足这些版本：Chrome（36.0及以上版本）、FireFox（35.0及以上版本）、IE（11.0及以上版本，不支持IE9）。
3. 打开新安装的浏览器，直接在浏览器地址中输入Kibana的访问路径。即http://{Cluster Internal access address}。{Cluster Internal access address}为访问Elasticsearch集群的内网访问地址，包含集群IP和访问Kibana的端口号，其中，集群IP为集群内网访问地址，端口号为5601。如http://192.168.0.187:5601。

这样，您就通过弹性云主机，接入了Elasticsearch集群，您可以通过kibana进行后续操作。

定义数据
为了方便后续操作顺利进行，需要店铺使用者为“products.json”文件中的数据进行数据定义。

1. 上个步骤申请的弹性云主机中，打开浏览器，输入http://{Cluster Internal access address}打开Kibana。
{Cluster Internal access address}为访问Elasticsearch集群的内网访问地址，包含集群IP和访问Kibana的端口号，其中，集群IP为集群内网访问地址，端口号为5601。如http://192.168.0.187:5601。
2. 在“Kibana Dev Tools”界面，单击“Get to work”，进入Console界面。
3. 在Console界面，如图所示。执行如下命令，创建索引“my_store”，并指定自定义映射来定义数据类型，设置无需对精确值字段进行分析。

PUT /my_store 
{ 
  "mappings": { 
    "products": { 
      "properties": { 
        "productID": { 
          "type": "text", 
          "index": "not_**yzed" 
        }, 
        "_id": { 
          "type": "integer", 
          "index": "not_**yzed" 
        }, 
        "level": { 
          "type": "text", 
          "index": "not_**yzed" 
        }, 
        "productName": { 
          "type": "text", 
          "index": "not_**yzed" 
        }, 
        "price": { 
          "type": "integer", 
          "index": "not_**yzed" 
        }, 
        "productType1": { 
          "type": "text", 
          "index": "not_**yzed" 
        }, 
        "productType2": { 
          "type": "text", 
          "index": "not_**yzed" 
        }, 
        "monthlySales": { 
          "type": "integer", 
          "index": "not_**yzed" 
        }, 
        "commentTime": { 
          "type": "date", 
          "index": "not_**yzed" 
        }, 
        "commentNum": { 
          "type": "integer", 
          "index": "not_**yzed" 
        }, 
        "commentContent": { 
          "type": "text", 
          "index": "not_**yzed" 
        }, 
        "time": { 
          "type": "date", 
          "index": "not_**yzed" 
        } 
      } 
    } 
  } 
}

加载数据建立索引
在Kibana Console输入如下命令，为文档建立products类型的索引“my_store”。

POST /my_store/products/_bulk 
{ 
  "index": { 
    "_id": 1 
  } 
} 
{ 
  "price": 100, 
  "productID": "XHDK-A-1293-#fJ3", 
  "time": "2017-09-01", 
  "level": "A", 
  "productName": "2017秋装新款文艺衬衫女装", 
  "productType1": "象牙白", 
  "productType2": "M", 
  "monthlySales": 328, 
  "commentTime": "2017-09-04", 
  "commentNum": 715, 
  "commentConetnt": "衣服真的超级好看" 
} 
{ 
  "index": { 
    "_id": 2 
  } 
} 
{ 
  "price": 205, 
  "productID": "KDKE-B-9947-#kL5", 
  "time": "2017-09-01", 
  "level": "A", 
  "productName": "2017秋装新款文艺针织毛衫女装", 
  "productType1": "玫瑰红", 
  "productType2": "L", 
  "monthlySales": 584, 
  "commentTime": "2017-09-05", 
  "commentNum": 406, 
  "commentConetnt": "卖家包装精致" 
} 
{ 
  "index": { 
    "_id": 3 
  } 
} 
{ 
  "price": 300, 
  "productID": "JODL-X-1937-#pV7", 
  "time": "2017-09-01", 
  "level": "A", 
  "productName": "2017秋装新款文艺T恤男装", 
  "productType1": "午夜黑", 
  "productType2": "XL", 
  "monthlySales": "1245", 
  "commentTime": "2017-09-03", 
  "commentNum": 502, 
  "commentConetnt": "衣服质量不错啊" 
} 
{ 
  "index": { 
    "_id": 4 
  } 
} 
{ 
  "price": 310, 
  "productID": "QQPX-R-3956-#aD8", 
  "time": "2017-09-02", 
  "level": "B", 
  "productName": "2017秋装新款文艺风衣外套女装", 
  "productType1": "宝石蓝", 
  "productType2": "L", 
  "monthlySales": 411, 
  "commentTime": "2017-09-05", 
  "commentNum": 436, 
  "commentConetnt": "关注店家很久了" 
} 
{ 
  "index": { 
    "_id": 5 
  } 
} 
{ 
"price": 150, 
"productID": "ABEF-C-1820-#mC6", 
"time": "2017-09-03", 
"level": "B", 
"productName": "2017秋装新款文艺牛仔裤女装", 
"productType1": "海军蓝", 
"productType2":"M", 
"monthlySales":1223, 
"commentTime":"2017-09-06", 
"commentNum":1200, 
"commentConetnt":"买到真的很惊喜" } 
{ 
  "index": { 
    "_id": 6 
  } 
} 
{ 
  "price": 200, 
  "productID": "BCQP-E-2365-#qE4", 
  "time": "2017-09-04", 
  "level": "B", 
  "productName": "2017秋装新款文艺休闲裤男装", 
  "productType1": "海军蓝", 
  "productType2": "L", 
  "monthlySales": "997", 
  "commentTime": "2017-09-10", 
  "commentNum": "301", 
  "commentConetnt": "打开包装，衣服没有异味" 
} 
{ 
  "index": { 
    "_id": 7 
  } 
} 
{ 
  "price": 250, 
  "productID": "EABE-D-1476-#oB1", 
  "time": "2017-09-10", 
  "level": "A", 
  "productName": "2017秋装新款文艺连衣裙女装", 
  "productType1": "青绿色", 
  "productType2": "S", 
  "monthlySales": 841, 
  "commentTime": "2017-09-15", 
  "commentNum": 299, 
  "commentConetnt": "很喜欢的衣服" 
} 
{ 
  "index": { 
    "_id": 8 
  } 
} 
{ 
  "price": 108, 
  "productID": "CDXK-F-1527-#pL2", 
  "time": "2017-09-11", 
  "level": "A", 
  "productName": "2017秋装新款文艺半身群女装", 
  "productType1": "棕色", 
  "productType2": "M", 
  "monthlySales": 85, 
  "commentTime": "2017-09-14", 
  "commentNum": 22, 
  "commentConetnt": "衣服买小了" 
} 
{ 
  "index": { 
    "_id": 9 
  } 
} 
{ 
  "price": 450, 
  "productID": "MMCE-H-4728-#nP9", 
  "time": "2017-09-11", 
  "level": "A", 
  "productName": "2017秋装新款文艺羽绒服女装", 
  "productType1": "白色", 
  "productType2": "M", 
  "monthlySales": 114, 
  "commentTime": "2017-09-14", 
  "commentNum": 22, 
  "commentConetnt": "衣服超厚，今年冬天好过了" 
} 
{ 
  "index": { 
    "_id": 10 
  } 
} 
{ 
  "price": 260, 
  "productID": "OCDA-G-2817-#bD3", 
  "time": "2017-09-12", 
  "level": "B", 
  "productName": "2017秋装新款文艺毛呢外套女装", 
  "productType1": "灰色", 
  "productType2": "L", 
  "monthlySales": 2004, 
  "commentTime": "2017-09-15", 
  "commentNum": 826, 
  "commentConetnt": "这样的价格很划算" 
} 
{ 
  "index": { 
    "_id": 11 
  } 
} 
{ 
  "price": 980, 
  "productID": "ZKDS-J-5490-#cW4", 
  "time": "2017-09-13", 
  "level": "B", 
  "productName": "2017秋装新款文艺棉服女装", 
  "productType1": "白色", 
  "productType2": "M", 
  "monthlySales": 112, 
  "commentTime": "2017-09-16", 
  "commentNum": 219, 
  "commentConetnt": "衣服穿着很舒服" 
} 
{ 
  "index": { 
    "_id": 12 
  } 
} 
{ 
  "price": 98, 
  "productID": "FKQB-I-2564-#dA5", 
  "time": "2017-09-15", 
  "level": "B", 
  "productName": "2017秋装新款文艺打底裤女装", 
  "productType1": "黑色", 
  "productType2": "M", 
  "monthlySales": 4345, 
  "commentTime": "2017-09-18", 
  "commentNum": 5473, 
  "commentConetnt": "这条裤子买了两条" 
} 
{ 
  "index": { 
    "_id": 13 
  } 
} 
{ 
  "price": 150, 
  "productID": "DMQY-K-6579-#eS6", 
  "time": "2017-09-21", 
  "level": "A", 
  "productName": "2017秋装新款文艺女鞋", 
  "productType1": "白色", 
  "productType2": "37", 
  "monthlySales": 2840, 
  "commentTime": "2017-09-25", 
  "commentNum": 5831, 
  "commentConetnt": "鞋子很好穿" 
} 
{ 
  "index": { 
    "_id": 14 
  } 
} 
{ 
  "price": 200, 
  "productID": "GKLW-l-2897-#wQ7", 
  "time": "2017-09-22", 
  "level": "A", 
  "productName": "2017秋装新款文艺男鞋", 
  "productType1": "白色", 
  "productType2": "39", 
  "monthlySales": 5879, 
  "commentTime": "2017-09-25", 
  "commentNum": 7200, 
  "commentConetnt": "鞋子很舒服" 
} 
{ 
  "index": { 
    "_id": 15 
  } 
} 
{ 
  "price": 300, 
  "productID": "HWEC-L-2531-#xP8", 
  "time": "2017-09-23", 
  "level": "A", 
  "productName": "2017秋装新款阔腿裤女装", 
  "productType1": "黑色", 
  "productType2": "M", 
  "monthlySales": 403, 
  "commentTime": "2017-09-26", 
  "commentNum": 607, 
  "commentConetnt": "款型很好看" 
} 
{ 
  "index": { 
    "_id": 16 
  } 
} 
{ 
  "price": 100, 
  "productID": "IQPD-M-3214-#yQ1", 
  "time": "2017-09-24", 
  "level": "B", 
  "productName": "2017秋装新款配雪纺衫", 
  "productType1": "乳白色", 
  "productType2": "M", 
  "monthlySales": 3045, 
  "commentTime": "2017-09-27", 
  "commentNum": 5021, 
  "commentConetnt": "卖家服务态度真好" 
} 
{ 
  "index": { 
    "_id": 17 
  } 
} 
{ 
  "price": 350, 
  "productID": "LPEC-N-4572-#zX2", 
  "time": "2017-09-25", 
  "level": "B", 
  "productName": "2017秋装新款皮衣女装", 
  "productType1": "黑色", 
  "productType2": "M", 
  "monthlySales": 239, 
  "commentTime": "2017-09-28", 
  "commentNum": 407, 
  "commentConetnt": "好评，价格实惠" 
} 
{ 
  "index": { 
    "_id": 18 
  } 
} 
{ 
  "price": 110, 
  "productID": "NQAB-O-3768-#sM3", 
  "time": "2017-09-26", 
  "level": "B", 
  "productName": "2017秋装新款内衣女装", 
  "productType1": "白色", 
  "productType2": "S", 
  "monthlySales": 6089, 
  "commentTime": "2017-09-29", 
  "commentNum": 7021, 
  "commentConetnt": "颜色很好，做工也不错" 
} 
{ 
  "index": { 
    "_id": 19 
  } 
} 
{ 
  "price": 210, 
  "productID": "HWNB-P-7879-#tN4", 
  "time": "2017-09-27", 
  "level": "B", 
  "productName": "2017秋装新款内衣男装", 
  "productType1": "白色", 
  "productType2": "L", 
  "monthlySales": 3201, 
  "commentTime": "2017-09-30", 
  "commentNum": 4059, 
  "commentConetnt": "我很喜欢，质量也不错" 
} 
{ 
  "index": { 
    "_id": 20 
  } 
} 
{ 
  "price": 230, 
  "productID": "JKHU-Q-8865-#uO5", 
  "time": "2017-09-29", 
  "level": "C", 
  "productName": "2017秋装新款文艺牛仔裤男装", 
  "productType1": "天蓝色", 
  "productType2": "M", 
  "monthlySales": 2056, 
  "commentTime": "2017-10-02", 
  "commentNum": 3842, 
  "commentConetnt": "衣服穿了几天了，洗过一次，好像没缩水" 
}

当返回结果信息中created字段值为true时，表示创建成功。
Ok，搜索数据前需要进行的操作已完成，现在可以使用Elasticsearch服务来进行想要的数据搜索了。结合前面的场景，以常用的操作来举例，店铺使用者可进行如下操作来搜索数据。

搜索数据

一、精确值查找

查找价格为20的商品信息，并且不进行评分。

GET /my_store/products/_search  
{ 
     "query" : { 
         "constant_score" : { 
             "filter" : { 
                 "term" : { 
                     "price" : 230 
                 } 
             } 
         } 
     } 
}

查找产品ID为“XHDK-A-1293-#fJ3”的商品信息。

GET /my_store/products/_search  
{     
"query" : {        
  "constant_score" : {          
    "filter" : {        
          "term" : {                   
   "productID" : "XHDK-A-1293-#fJ3"            
      }             
    }       
   }     
} 
}

查找月销量为584的商品信息。

GET /my_store/products/_search  
{ 
     "query" : { 
         "constant_score" : { 
             "filter" : { 
                 "term" : { 
                     "monthlySales" : 584 
                 } 
             } 
         } 
     } 
}

查找商品名称为“2017秋装新款文艺衬衫女装”的商品信息。

GET /my_store/products/_search  
{ 
     "query" : { 
         "constant_score" : { 
             "filter" : { 
                 "term" : { 
                     "productName" : "2017秋装新款文艺衬衫女装"                 } 
             } 
         } 
     } 
}

二、组合过滤

查询价格非300，价格为230或产品ID为XHDK-A-1293-#fJ3”的商品信息：

GET /my_store/products/_search  
{    
"query" : {      
  "constant_score" : {        
   "filter" : {          
    "bool" : {           
     "should" : [        
           { "term" : {"price" : 230}},                 
  {"term" : {"productID" : "XHDK-A-1293-#fJ3"} }       
  ],               
"must_not" : {                
   "term" : {"price" : 300}             
       }        
     }        
   }       
  }    
}  
}

三、多个精确值查找

查询价格为200或300的商品信息：

GET /my_store/products/_search  
{     
"query" : {      
    "constant_score" : {         
     "filter" : {             
     "terms" : {                
      "price" : [200, 300]             
     }         
     }     
     }    
  }  
}

删除集群
按照上述步骤对示例数据进行搜索，得到满意的结果后，想必大家已完全了解了Elasticsearch服务的使用流程和方法，还可以参考如下步骤，删除示例集群以及示例数据，避免造成资源浪费。
由于集群删除后，数据无法恢复，请谨慎操作。
1. 登录Elasticsearch管理控制台。在左侧菜单栏选择“集群管理”。
2. 进入集群管理页面，选中“Sample-ESCluster”集群所在行，在操作列选择“删除”。
3. 在弹出的确认对话框中，单击“确认”完成操作。

更多内容，请参见Elasticsearch服务帮助中心（http://support.huaweicloud.com/es_gls/index.html）。

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【云知易】Elasticsearch服务入门 01 快速开始使用ES