[923]ElasticSearch 7.4.2 Root mapping definition has unsupported parameters

number_ of_ Shards
the number of primary partitions per index. The default value is 5. This configuration cannot be modified after index creation

number_ of_ Replicas
the number of copies per master partition. The default value is 1. For an active index library, this configuration can be modified at any time

PUT /test2
{
  "settings": {
    "number_of_shards": 3,
    "number_of_replicas": 0
  },
  "mappings": {
    "user":{
      "properties":{
        "id":{
          "type":"long"
        },
        "title":{
          "type":"text",
          "analyzer":"ik_max_word"
        },
        "content":{
          "type":"text",
          "analyzer":"ik_max_word"
        },
        "postdate":{
          "type":"date"
        },
        "url":{
          "type":"text"
        }
      }
    }
  }
}

Error: Root mapping definition has unsupported parameters

{
  "error": {
    "root_cause": [
      {
        "type": "mapper_parsing_exception",
        "reason": "Root mapping definition has unsupported parameters:  [user : {properties={postdate={type=date}, id={type=long}, title={analyzer=ik_max_word, type=text}, content={analyzer=ik_max_word, type=text}, url={type=text}}}]"
      }
    ],
    "type": "mapper_parsing_exception",
    "reason": "Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters:  [user : {properties={postdate={type=date}, id={type=long}, title={analyzer=ik_max_word, type=text}, content={analyzer=ik_max_word, type=text}, url={type=text}}}]",
    "caused_by": {
      "type": "mapper_parsing_exception",
      "reason": "Root mapping definition has unsupported parameters:  [user : {properties={postdate={type=date}, id={type=long}, title={analyzer=ik_max_word, type=text}, content={analyzer=ik_max_word, type=text}, url={type=text}}}]"
    }
  },
  "status": 400
}

after checking the official website example, it is found that 7.4 does not support the specified index type by default, and the default index type is_ Doc (implied: include_ type_ name=false）。 See official website: https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html#_ typeless_ apis_ in_ 7_ 0

To be amended as follows:

PUT /test2
{
  "settings": {
    "number_of_shards": 3,
    "number_of_replicas": 0
  },
  "mappings": {
    "properties":{
      "id":{
        "type":"long"
      },
      "title":{
        "type":"text",
        "analyzer":"ik_max_word"
      },
      "content":{
        "type":"text",
        "analyzer":"ik_max_word"
      },
      "postdate":{
        "type":"date"
      },
      "url":{
        "type":"text"
      }
    }
  }
}

Success

{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "test2"
}

elasticsearch Reported error in exceptions.RequestError(400, u’mapper_parsing_exception’, u’No handler field

Error reported when creating index index in ElasticSearch: elasticsearch.exceptions.RequestError: RequestError(400, u’mapper_parsing_exception ‘, u’No handler for type [string] declared on field [link]’).

Reason: What version of ElasticSearch are you using? Versions 5.X and above don’t have string types anymore, and have switched to text and keyword as string types. </strong

Replace.

 

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