[Benchmark] fail 50% throw exception None of the configured nodes were available

[Dongtuhust (Dongtu)]

I use PreBuiltXPackTransportClient in my java code
public class EsUtil {
    
    private static Logger logger = LoggerFactory.getLogger(EsUtil.class);
    private static final String PROP_NAME = "config.properties";
    private static Client client = null;
    public static Client getTransportClient() {
        Properties properties = getProperties();
        try {
            if (client == null || ((TransportClient) client).connectedNodes().isEmpty()) {
                synchronized (EsUtil.class) {
                    if (client == null || ((TransportClient) client).connectedNodes().isEmpty()) {
                        Settings settings = Settings.builder()
                                .put("xpack.security.user", PassTranformer.decrypt((String) properties.get("ESAuthen")))
                                .put("cluster.name", (String) properties.get("clusterESName"))
                                .put("request.headers.X-Found-Cluster", (String) properties.get("clusterESName"))
//                                .put("xpack.ssl.keystore.path", "../resources/elasticsearch.keystore")
                                .put("xpack.security.transport.ssl.enabled", "true")
                                .put("xpack.security.transport.ssl.keystore.type", "PKCS12")
                                .put("xpack.security.transport.ssl.truststore.type", "PKCS12")
                                .put("xpack.security.transport.ssl.keystore.path", "elastic-certificates.p12")
                                .put("xpack.security.transport.ssl.truststore.path", "elastic-certificates.p12")
                                .put("xpack.security.transport.ssl.keystore.password", PassTranformer.decrypt((String) properties.get("SslESPass")))
                                .put("xpack.security.transport.ssl.truststore.password", PassTranformer.decrypt((String) properties.get("SslESPass")))
                                .put("xpack.security.transport.ssl.verification_mode", "certificate")
                                .put("client.transport.sniff", true)
                                /*  .put("client.transport.nodes_sampler_interval", 10000)
		            .put("client.transport.sniff", true)*/
//                                .put("thread_pool.search.type", "fixed")
                                .put("thread_pool.search.size", 300)
                                .put("thread_pool.search.queue_size", 1000)
                                .build();
                        client = new  PreBuiltXPackTransportClient(settings)
                        		.addTransportAddress(new TransportAddress(InetAddress.getByName(PassTranformer.decrypt((String) properties.get("AdressES"))), Integer.parseInt((String) properties.get("PortES"))))
                        		.addTransportAddress(new TransportAddress(InetAddress.getByName(PassTranformer.decrypt((String) properties.get("AdressES2"))), Integer.parseInt((String) properties.get("PortES"))))
                        		.addTransportAddress(new TransportAddress(InetAddress.getByName(PassTranformer.decrypt((String) properties.get("AdressES3"))), Integer.parseInt((String) properties.get("PortES"))));

                        logger.error("[SYSTEM] Khoi tao Transport Client");
                    }
                }
            }
        } catch (UnknownHostException e) {
            logger.error("unknown host " + properties.get("elasticsearch.url") + e);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return client;
    }

**When test benchmark by jmester tool with 10 CCU. App throw exception **
None of the configured nodes were available: [{node_1}{ITQP74KIQ32Jq_HOAOJ8Rw}{MyqcJ244R
-WG9TUgqYtt-g}{10.60.110.42}{10.60.110.42:9300}{ml.machine_memory=68719009792, ml.max_op
en_jobs=20, xpack.installed=true, ml.enabled=true}]

Please give me advice !

[Dongtuhust (Dongtu)]

This my elasticsearch.yml config:

#cluster.name: elasticsearch
node.name: 'node_1'
network.host: 0.0.0.0
network.bind_host: 0.0.0.0
discovery.type: single-node
#discovery.zen.ping.unicast.hosts: ["10.60.110.42","10.60.110.23"]
indices.recovery.max_bytes_per_sec: 10000mb
cluster.routing.allocation.node_concurrent_recoveries: 10
node.master: true
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.keystore.path: elastic-certificates.p12
xpack.security.transport.ssl.truststore.path: elastic-certificates.p12
#xpack.license.self_generated.type: basic