Cannot create index with mappings settings

[jaizpuru]

Java API client version

8.2.2

Java version

8

Elasticsearch Version

8.2.2

Problem description

The following code is expected to trigger an index creation in the target server. Instead, the error response below is received

RestClient restClient = RestClient.builder(new HttpHost("localhost", 9200)).build();
ElasticsearchTransport transport = new RestClientTransport(restClient, new JacksonJsonpMapper());

CreateIndexRequest request = new CreateIndexRequest.Builder().index("name")
    .settings(s -> s.mappings(m -> m.totalFields(totalFields -> totalFields.limit(1001))))
    .build();

new ElasticsearchClient(transport).indices().create(request);

Response:

[es/indices.create] failed: [illegal_argument_exception] unknown setting [index.mappings.total_fields.limit] did you mean any of ...

[KnowledgeGarden]

In earlier versions, there was a clean api with which to load JSON mappings. It's gone and, post 7, no documentation. Surely there is a way to load JSON mappings in recent versions.

[yoh1496]

Hi, I have same problem.
It is written in below document that mapping limit settings should place with parameter index.mapping.*

https://www.elastic.co/guide/en/elasticsearch/reference/8.2/mapping-settings-limit.html

So, this line should be change like this.

https://github.com/elastic/elasticsearch-java/blob/main/java-client/src/main/java/co/elastic/clients/elasticsearch/indices/IndexSettings.java#L1997

op.add(Builder::mappings, MappingLimitSettings._DESERIALIZER, "mapping");

Could you change this?

[yoh1496]

Hi, @swallez .
Could you check this issue? If you already checked, I apologize about my impoliteness.

I think this issue and one of #295 are api-spec problem in IndexSettings. And I hope this issue will be resolved in next release.

[swallez]

This is an issue in the API specification used to produce the Java code: mappings should be mapping.

The fix will be included in the next 8.x and 7.17.x releases.

[swallez]

@KnowledgeGarden

In earlier versions, there was a clean api with which to load JSON mappings. It's gone and, post 7, no documentation. Surely there is a way to load JSON mappings in recent versions.

There is indeed a way to load JSON mappings. It's not limited to mappings actually, and can be used with API object. Please see explanation and examples at https://www.elastic.co/guide/en/elasticsearch/client/java-api-client/current/loading-json.html

[swallez]

Closing, as the same issue has been reported in #295