Elasticsearch - NoNodeAvailableException

Question

I get the following error when trying to connect to Elasticsearch 2 using the Java API for ES 2. This is the code:

Settings settings = Settings.settingsBuild         


        

Answer 1

The problem might be in the settings that you are using.

Instead of creating the Client in these three steps:

TransportClient transportClient = TransportClient.builder().settings(settings).build();
Client c = null;
try {
 c = transportClient.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(Receptor.es_ip), 9300));
} catch (UnknownHostException e) {
 System.err.println(Util.getTimestampStr() + "UnknownHostException error.");
 e.printStackTrace();
}

Try creating it like this:

Client client = new TransportClient()
            .addTransportAddress(new InetSocketTransportAddress(
                    InetAddress.getByName(Receptor.es_ip),
                    9300));

If you want more data check this old answer to a similar question: Elastic search problems