Elasticsearch reindex用管道转换类型

es环境

• Elasticsearch 7.1x

使用方法

• 将通过 convert processor 实现

index准备

POST index_src_1/_doc/1
{
  "id":"111111",
  "author": "zlh"
}

GET index_src_1/_search查询得到字符串id

	"_source" : {
	  "id" : "111111",
	  "author" : "zlh"
	}

_reindex复制index

POST /_reindex
{
  "source": {
    "index": "index_src_1",
    "size": 10
  },
  "dest": {
    "index": "index_src_2"
  }
}

GET index_src_2/_search查询得到字符串id

	"_source" : {
	  "id" : "111111",
	  "author" : "zlh"
	}

希望将原index index_src_1中id为string类型转为目标index中long类型

运用 convert 创建 pipeline

PUT _ingest/pipeline/zlh-pipeline-id
{
  "description": "描述：运用convert创建pipeline，将id字段的内容转换为long",
  "processors" : [
    {
      "convert" : {
        "field" : "id",
        "type": "long"
      }
    }
  ]
}

_reindex复制index

POST /_reindex
{
  "source": {
    "index": "index_src_1",
    "size": 10
  },
  "dest": {
    "index": "index_src_2",
    "pipeline": "zlh-pipeline-id"
  }
}

GET index_src_2/_search查询得到long型id

	"_source" : {
	  "author" : "zlh",
	  "id" : 111111
	}