reason“: “Root mapping definition has unsupported parameters:

Posted 2022-11-27 Biexiansheng

1、在Kibana创建索引的时候报错，使用的elasticsearch版本是7.2.1版本。

 1 PUT /person
 2 
 3   "settings": 
 4     "number_of_shards": "10",
 5     "number_of_replicas": "0",
 6     "refresh_interval": "-1"
 7   ,
 8   "mappings": 
 9     "properties": 
10       "update_time": 
11         "format": "yyyy-MM-dd HH:mm:ss",
12         "type": "date"
13       ,
14       "username": 
15         "type": "keyword"
16       ,
17       "address": 
18         "type": "keyword"
19       
20     
21   
22 

　　报错，如下所示：

 1 
 2     "error": 
 3         "root_cause": [
 4             "type": "mapper_parsing_exception",
 5             "reason": "Root mapping definition has unsupported parameters:  [project_evaluate : properties=update_time=format=yyyy-MM-dd HH:mm:ss, type=date, username=type=keyword, address=type=keyword]"
 6         ],
 7         "type": "mapper_parsing_exception",
 8         "reason": "Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters:  [project_evaluate : properties=update_time=format=yyyy-MM-dd HH:mm:ss, type=date, username=type=keyword, address=type=keyword]",
 9         "caused_by": 
10             "type": "mapper_parsing_exception",
11             "reason": "Root mapping definition has unsupported parameters:  [project_evaluate : properties=update_time=format=yyyy-MM-dd HH:mm:ss, type=date, username=type=keyword, address=type=keyword]"
12         
13     ,
14     "status": 400
15 

　　具体原因是ElasticSearch 7.x 默认不在支持指定索引类型。所以在ElasticSearch 7.x中不指定索引类型，创建索引是成功的。

　　但是对于ElasticSearch 6.x执行时没有问题的，Elasticsearch7默认不在支持指定索引类型，默认索引类型是_doc，索引不再推荐创建索引类型了，使用默认的即可。因为elasticsearch8后就不在提供该字段。