ElasticSearch 7.x 默认不在支持指定索引类型

约定不等于承诺〃 2021-12-16 05:18 210阅读 0赞

# ElasticSearch 7.x 默认不在支持指定索引类型 #

在elasticsearch7.x上执行：

put es_test
    {
        "settings":{    
        "number_of_shards" : 3,   
        "number_of_replicas" : 0    
        },    
         "mappings":{    
          "books":{     
            "properties":{        
                "title":{"type":"text"},
                "name":{"type":"text","index":false},
                "publish_date":{"type":"date","index":false},           
                "price":{"type":"double"},           
                "number":{
                    "type":"object",
                    "dynamic":true
                }
            }
          }
         }
    }

执行结果则会出错：Root mapping definition has unsupported parameters

{
      "error": {
        "root_cause": [
          {
            "type": "mapper_parsing_exception",
            "reason": "Root mapping definition has unsupported parameters:  [books : {properties={number={dynamic=true, type=object}, price={type=double}, name={index=false, type=text}, title={type=text}, publish_date={index=false, type=date}}}]"
          }
        ],
        "type": "mapper_parsing_exception",
        "reason": "Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters:  [books : {properties={number={dynamic=true, type=object}, price={type=double}, name={index=false, type=text}, title={type=text}, publish_date={index=false, type=date}}}]",
        "caused_by": {
          "type": "mapper_parsing_exception",
          "reason": "Root mapping definition has unsupported parameters:  [books : {properties={number={dynamic=true, type=object}, price={type=double}, name={index=false, type=text}, title={type=text}, publish_date={index=false, type=date}}}]"
        }
      },
      "status": 400
    }

如果在6.x上执行，则会正常执行

{
      "acknowledged" : true
    }

出现这个的原因是，elasticsearch7默认不在支持指定索引类型，默认索引类型是\_doc，如果想改变，则配置include\_type\_name: true 即可(这个没有测试，官方文档说的，无论是否可行，建议不要这么做，因为elasticsearch8后就不在提供该字段)。官方文档：[https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html][https_www.elastic.co_guide_en_elasticsearch_reference_current_removal-of-types.html]

所以在Elasticsearch7中应该这么创建索引

put /test
    {
      "settings":{
        "number_of_shards":3,
        "number_of_replicas":2
      },
      "mappings":{
        "properties":{
          "id":{"type":"long"},
          "name":{"type":"text","analyzer":"ik_smart"},
          "text":{"type":"text","analyzer":"ik_max_word"}
        }
      }
    
    }
    
    
    put /test1
    {
      "settings":{
        "number_of_shards":3,
        "number_of_replicas":2
      },
      "mappings":{
        "properties":{
          "id":{"type":"long"},
          "name":{"type":"text"},
          "text":{"type":"text"}
        }
      }
    
    }

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[https_www.elastic.co_guide_en_elasticsearch_reference_current_removal-of-types.html]: https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html
[Link 1]: https://www.cbedai.net/u014646662