public ElasticsearchClusterConfig getElasticsearchClusterConfig() {
        return this.elasticsearchClusterConfig;
    }
<p>
The type and number of instances in the domain cluster.
</p>

@return The type and number of instances in the domain cluster.
aws-java-sdk-elasticsearch/src/main/java/com/amazonaws/services/elasticsearch/model/ElasticsearchDomainStatus.java