Embedded ElasticSearch can't connect to transport port in integration test

Question

I'm trying to create an embedded ElasticSearch node for integration testing.

Here is the code creation

private static final String THREAD_NAME = "ES-THREAD";
private static final String CLUSTER_NAME = "ES-INTEGRATION-TEST";
private static final String ES_HOME_PATH = "elastic-search-home";
private static final String ES_DATA_PATH = "elastic-search-data";
private static final String DATA_PORTS = "9500-9599";
private static final String TRANSPORT_PORTS = "9600-9699";
public void before() throws Throwable {
        try {
            homeDir = Files.createTempDirectory(ES_HOME_PATH);
            dataDir = Files.createTempDirectory(ES_DATA_PATH);

            log.info("Created temp directory {} and {}", homeDir, dataDir);
        } catch (IOException ex) {
            throw new IllegalStateException("Temp Elastic Search directory not created", ex);
        }

        Properties props = new Properties();

        props.setProperty("name", THREAD_NAME);
        props.setProperty("path.home", homeDir.toString());
        props.setProperty("path.data", dataDir.toString());
        props.setProperty("http.port", DATA_PORTS);
        props.setProperty("transport.tcp.port", TRANSPORT_PORTS);
        props.setProperty("node.local", "true");
        props.setProperty("script.groovy.sandbox.enabled", "true");
        props.setProperty("script.engine.groovy.inline.aggs", "true");
        props.setProperty("script.engine.groovy.inline.search", "true");
        props.setProperty("script.engine.groovy.inline.update", "true");
        props.setProperty("script.engine.groovy.inline.mapping", "true");


        esNode = NodeBuilder.nodeBuilder().local(false).client(false)
                .settings(Settings.settingsBuilder().put(props).build()).clusterName(CLUSTER_NAME).build();

        esNode.start();
}

In the code tested there is the following method which creates transport connection to ElasticSearch

private Client createClient() throws UnknownHostException {
    Settings.Builder builder = Settings.builder();
    builder.put("cluster.name", clusterName);
    builder.put("client.transport.ignore_cluster_name", true);

    Settings settings = builder.build();
    return TransportClient.builder().settings(settings).build()
            .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(hostname), port));
}

when I run the test i receive excepetion

java.net.BindException: Can't assign requested address
    at sun.nio.ch.Net.connect0(Native Method)
    at sun.nio.ch.Net.connect(Net.java:454)
    at sun.nio.ch.Net.connect(Net.java:446)
    at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
    at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.connect(NioClientSocketPipelineSink.java:108)
    at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.eventSunk(NioClientSocketPipelineSink.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:574)
    at org.jboss.netty.channel.Channels.connect(Channels.java:634)
    at org.jboss.netty.channel.AbstractChannel.connect(AbstractChannel.java:216)
    at org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:229)
    at org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:182)
    at org.elasticsearch.transport.netty.NettyTransport.connectToChannelsLight(NettyTransport.java:913)
    at org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:880)
    at org.elasticsearch.transport.netty.NettyTransport.connectToNodeLight(NettyTransport.java:852)
    at org.elasticsearch.transport.TransportService.connectToNodeLight(TransportService.java:250)
    at org.elasticsearch.client.transport.TransportClientNodesService$SimpleNodeSampler.doSample(TransportClientNodesService.java:354)
    at org.elasticsearch.client.transport.TransportClientNodesService$NodeSampler.sample(TransportClientNodesService.java:300)
    at org.elasticsearch.client.transport.TransportClientNodesService$ScheduledNodeSampler.run(TransportClientNodesService.java:333)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

The values I send for the tested code as hostname is localhost and I send the port I pull from the embedded ElasticSearch by

NodeInfo nodeInfo = esNode.client().admin().cluster().prepareNodesInfo(localNodeId).get().iterator().next();
transportAddress = nodeInfo.getTransport().address().publishAddress().getAddress();

I saw that the transport port is always 0 and when I evaluate nodeInfo.getTransport().address() its value is local[1].

What in the node creation is wrong? Is there another configuration I need to add?

Thanks,

Daniela

Answer 1

when I changed props.setProperty("node.local", "true"); to props.setProperty("node.local", "false"); the transport port was created.