TransportClient setup with Sniffing set to true to discover other nodes in the Elasticsearch cluster

TransportClientSniffingTestMain.java

package com.euromoney.elasticsearch;

import org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;


public class TransportClientSniffingTestMain {


  public static void main(String[] args) throws InterruptedException {

    TransportClient client = new TransportClient(ImmutableSettings.settingsBuilder()
        .put("client.transport.sniff", true) // sniff the rest of cluster so we only need to set one ip
        .put("cluster.name", "elasticsearch_sniff")
        .put("client.transport.ping_timeout", "20s")
        .put("client.transport.nodes_sampler_interval", "20s")
        .build());
    client.addTransportAddress(new InetSocketTransportAddress("127.0.0.1", 9300));

    System.out.println("~~~~~~~~~ setup completed ~~~~~~~~~~~");
    System.out.println("~~~~~~~~~ sleeping for 1 second ~~~~~~~~~~~");
    Thread.sleep(1000);

    ClusterHealthResponse clusterIndexHealths = client.admin().cluster().prepareHealth().get();

    // confirm we get info about the cluster and other nodes.
    System.out.println("Cluster Name" + clusterIndexHealths.getClusterName());
    System.out.println("Number of Nodes" + clusterIndexHealths.getNumberOfNodes());
    System.out.println("String Printour" + clusterIndexHealths.toString());
  }
}