elasticsearch - 在 Elasticsearch 6.4.0 中创建索引时的 mapper_parsing_exception

Question

我正在尝试使用以下 JSON 创建 Elasticsearch 索引，这导致异常。我使用的 Elasticsearch 的当前版本是 6.4.0。
异常表示根映射定义具有不受支持的参数。不知道是什么问题

{
    "settings": {
        "analysis": {
            "analyzer": {
                "my_analyzer": {
                    "filter": [
                        "lowercase"
                    ],
                    "char_filter": [
                        "html_strip"
                    ],
                    "type": "custom",
                    "tokenizer": "whitespace"
                }
            }
        }
    },
    "mappings" :{
        "properties" :{
            "title" :{
                "type" : "text",
                "analyzer" : "my_analyzer"
            }
        }
    }
}

这导致以下异常:

{
    "error": {
        "root_cause": [
            {
                "type": "mapper_parsing_exception",
                "reason": "Root mapping definition has unsupported parameters:  [title : {analyzer=my_analyzer, type=text}]"
            }
        ],
        "type": "mapper_parsing_exception",
        "reason": "Failed to parse mapping [properties]: Root mapping definition has unsupported parameters:  [title : {analyzer=my_analyzer, type=text}]",
        "caused_by": {
            "type": "mapper_parsing_exception",
            "reason": "Root mapping definition has unsupported parameters:  [title : {analyzer=my_analyzer, type=text}]"
        }
    },
    "status": 400
}

Answer 1

这是因为您没有添加 _doc在您的 mappings部分，这是因为 types are deprecated并了解为什么必须在 schedule_for_removal_of_mapping_types 中提到的 Elasticsearch 6.X 版本中添加此内容
请引用Elasticsearch 6.4 official doc on how to create mappings.
要使其工作，您需要添加 _doc在映射部分如下:

{
    "settings": {
        "analysis": {
            "analyzer": {
                "my_analyzer": {
                    "filter": [
                        "lowercase"
                    ],
                    "char_filter": [
                        "html_strip"
                    ],
                    "type": "custom",
                    "tokenizer": "whitespace"
                }
            }
        }
    },
    "mappings": {
        "_doc": {     // Note this, you need to add this
            "properties": {
                "title": {
                    "type": "text",
                    "analyzer": "my_analyzer"
                }
            }
        }
    }
}