ElasticSearch V7.4.0: Root mapping definition has unsupported parameters

场景复现

请求地址：put http://127.0.0.1:9200/test ，请求内容如下：

{
    "settings": {
        "analysis": {
            "analyzer": {
                "comma": {
                     "type": "pattern",
                     "pattern":","
                }
            }
        }
    },
    "mappings": {
        "doc":{
            "properties": {
                "text":{
                    "type": "text",
                    "analyzer": "comma"
                }
            }
        }
    }
}

异常信息

 

{
    "error": {
        "root_cause": [
            {
                "type": "mapper_parsing_exception",
                "reason": "Root mapping definition has unsupported parameters:  [doc : {properties={id={index=false, store=true, type=long}, title={analyzer=standard, index=true, store=true, type=text}, content={analyzer=standard, index=true, store=true, type=text}}}]"
            }
        ],
        "type": "mapper_parsing_exception",
        "reason": "Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters:  [article : {properties={id={index=false, store=true, type=long}, title={analyzer=standard, index=true, store=true, type=text}, content={analyzer=standard, index=true, store=true, type=text}}}]",
        "caused_by": {
            "type": "mapper_parsing_exception",
            "reason": "Root mapping definition has unsupported parameters:  [article : {properties={id={index=false, store=true, type=long}, title={analyzer=standard, index=true, store=true, type=text}, content={analyzer=standard, index=true, store=true, type=text}}}]"
        }
    },
    "status": 400
}

失败原因

ElasticSearch7.x 默认不再支持指定索引类型，默认索引类型是_doc，如果想改变，则配置 include_type_name: true 即可。注意这一字段将在 8.x 舍弃：

请求隐含：include_type_name=false

官方原文：https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html

解决办法

1. 不指定索引类型，使用默认索引类型_doc,请求参数修改如下：

{
    "settings": {
        "analysis": {
            "analyzer": {
                "comma": {
                     "type": "pattern",
                     "pattern":","
                }
            }
        }
    },
    "mappings": {
        "properties": {
            "my_text":{
                "type": "text",
                "analyzer": "comma"
            }
        }
    }
}

    2.如果你要像之前旧版一样兼容自定义 type ,需要携带参数 include_type_name=true,演示图如下：