Elasticsearch client is not connected to any Elasticsearch nodes!

docker run --rm -d -p 9200:9200 -p 9300:9300 -p 5601:5601 --name es-kibana nshou/elasticsearch-kibana

List<InetSocketAddress> transports = new ArrayList<>();
    transports.add(new InetSocketAddress(InetAddress.getByName("0.0.0.0"), 9300));

    tweets.addSink(new ElasticsearchSink<Tuple2<String, Integer>>(
            config,
            transports,
            new ESSink()));

curl --request PUT --url http://localhost:9200/twitter-bd

curl --request PUT
--url http://localhost:9200/twitter-bd/_mapping/twitter-wordcount
--header 'content-type: application/json'
--data '{
    "twitter-wordcount": {
        "properties": {
            "word": {"type": "string"},
            "cnt": {"type": "integer"}
        }
     }
}'