有没有一种方法可以配置Elasticsearch，以防止在特定索引中创建新类型？

Question

For example: I have index people and document type person-info . I explicitly defined its mapping by:

curl -XPUT 'http://localhost:9200/people/_mapping/person-info' -d '
{
    "person-info" : {
        "properties" : {
            // some mapping
        }
    }
}

Once I inserted some documents to person_info instead of person-info by mistake. So Elasticsearch automatically created new document type person_info with standart mapping which isn't appropriate for us. There was no warnings about this, so I didn't notice that mistake in my code. So now I have a lot of documents with different mapping.

Is there a way to configure Elasticsearch so that it will prevent creating new type in specific index?

Answer 1

Yes there is. You can disable dynamic mapping by adding the following line in your elasticsearch.yml file.

index.mapper.dynamic: false

Now if you try to index documents with type person_info , it will fail.

Answer 2

No you cannot change this behaviour: this field is mandatory and when adding a new document it is used to index it. If the field were absent Elasticsearch would not know how to index the document. If a mapping for that type is missing a default one is created.

The only thing you can do is disabling the dynamic mapping creation: https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-dynamic-mapping.html