es教程(一)

@snmutsuki
参考文档

适用于7.4版本！命令运行在powershell下

一、启动es

• 一个es簇由一个至多个节点组成，一个ip下的es节点会自动加入到一个es簇中去

  $ elasticsearch -E path.data=\data\es\data0 -E path.logs=\data\es\log0
  $ elasticsearch -E path.data=\data\es\data1 -E path.logs=\data\es\log1
  

• 查看es簇的情况信息

  $ curl.exe -X GET "localhost:9200/_cat/health?v&pretty"
  

二、索引文档

• 添加篇文档到customer索引的_doc类型下^[1]

$ curl.exe -X PUT "localhost:9200/customer/_doc/1?pretty" `
-H "Content-Type:application/json" -d '{
 \"name\":\"john\"
}'

• 查看刚刚添加的文档

  $ curl -X GET "localhost:9200/customer/_doc/1?pretty"
  

• 一次性添加大量文件

  1. 将需要写的数据放入一个json格式的文件中，注意文件必须以一个空行结束！

     {"index":{"_id":"1"}}
     {"account_number":1,"balance":39225,"firstname":"Amber","lastname":"Duke","age":32,"gender":"M","address":"880 Holmes Lane","employer":"Pyrami","email":"amberduke@pyrami.com","city":"Brogan","state":"IL"}
     ...
     

  2. 使用--data-binary "@文件名.json"绑定需要传输的数据

     $ curl.exe -H "Content-Type: application/json" `
     -X POST "localhost:9200/bank/_bulk?pretty&refresh" `
     --data-binary "@<路径>account.json"
     

  3. 查看es下各个索引的情况

  $ curl.exe -X GET "localhost:9200/_cat/indices?v&pretty"
  health status index    uuid                   pri rep docs.count docs.deleted store.size pri.store.size
  yellow open   bank     2_KSF7fUTu6ao_B_XdMVbg   1   1       1000            0    414.3kb        414.3kb
  yellow open   customer BLGw9U6aSGSGsCGjU75SqA   1   1          1            0      3.5kb          3.5kb
  

---

附：
[1] account.json

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1. 低版本es可能不支持type的名字以下划线开头，务必去除 ↩