Limit of total fields [1000] in index has been exceeded

1、 Run time error ：
Set the upper limit
http://127.0.0.1:9200/index( Your index name )/_settings
PUT
{“index”:{“mapping.total_fields.limit”:2000}}

2. It's a mistake ：

http://127.0.0.1:9200/index( Your index name )
PUT
{
“settings”: {
“index.mapping.total_fields.limit”: 5000
},
“mappings”: {
}
}