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

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.