架构师成长记_第八周_19_ES- 批量操作 bulk

Posted 2022-12-11 _大木_

文章目录

• ES- 批量操作 bulk
• • 1. bulk 之 create (批量新增)
  • • 1.1 第一种写法
    • 1.2 第二种写法
    • PS: 批量新增注意:
  • 2. bulk 之 index (覆盖新增)
  • 3. bulk 之 update (批量更新)
  • 4. bulk 之 delete(批量删除)
  • 5. bulk 之 批量操作综合
• PS:

ES- 批量操作 bulk

1. bulk 之 create (批量新增)

1.1 第一种写法

POST: http://192.168.92.140:9200/_bulk

"create": "_index": "shop2" ,"_type":"_doc","_id":"2001"
"id": "2001", "nickname":"name-2001"
"create": "_index": "shop2" ,"_type":"_doc","_id":"2002"
"id": "2002", "nickname":"name-2002"
"create": "_index": "shop2" ,"_type":"_doc","_id":"2003"
"id": "2003", "nickname":"name-2003"

1.2 第二种写法

POST: http://192.168.92.140:9200/shop2/_doc/_bulk

"create": "_id":"2101"
"id": "2101", "nickname":"name-2101"
"create": "_id":"2104"
"id": "2104", "nickname":"name-2104"

PS: 批量新增注意:

1. 输入的语法: 每行都需要进行换行处理, 最后一行也是
2. 在新增的时候当出现的重复的字段会报409错误, 但是并不会影响其他的新增操作.
   

2. bulk 之 index (覆盖新增)

PS: 和create同样是新增操作, 不同的是, 当id出现重名的时候, index可以进行覆盖处理, 而create则会进行报错.

POST: http://192.168.92.140:9200/shop2/_doc/_bulk

"index": "_id":"2111"
"id": "2111", "nickname":"name-2111"
"create": "_id":"2104"
"id": "2104", "nickname":"name-2104"

3. bulk 之 update (批量更新)

POST: http://192.168.92.140:9200/shop2/_doc/_bulk

"update": "_id":"2111"
"doc":"nickname":"name-2211"
"update": "_id":"2104"
"doc": "id": "2114"

4. bulk 之 delete(批量删除)

POST: http://192.168.92.140:9200/shop2/_doc/_bulk

"delete": "_id":"2111"
"delete": "_id":"2104"

5. bulk 之 批量操作综合

POST: http://192.168.92.140:9200/shop2/_doc/_bulk

"delete": "_id":"2003"
"create": "_id": "20003"
"id":"20003","nickname":"name20003"
"update":"_id": "2002"
"doc":"id":"2222"

PS:

1. 批量请求是会提交给内存的, 如果提交的请求过多, 则会导致性能的急剧下降.
2. 最佳的批量总数是取决于电脑的硬件配置.
3. 一个好的批量大小在开始处理的时候占用的物理内存大小约为5 - 15 MB.