Spring Boot Elastic Search и не удается подключиться

Я следил за этим руководством на сайте Mkyong https://www.mkyong.com/spring-boot/spring-boot-spring-data-elasticsearch-example/

Он использует библиотеку spring-boot-starter-data-elasticsearch для подключения к elasticSearch.

Я использовал следующие данные, чтобы попытаться подключиться к экземпляру эластичного поиска на Amazon.

elasticsearch.host=<search address in amazon elastic search console>
elasticsearch.port=9200
elasticsearch.clustername=<accountId:clusterName>`

Однако я продолжаю получать следующие ошибки

 2017-05-16 18:37:24.308  INFO 7108 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Overriding bean definition for bean 'elasticsearchTemplate' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=esConfig; factoryMethodName=elasticsearchTemplate; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/mkyong/EsConfig.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchDataAutoConfiguration; factoryMethodName=elasticsearchTemplate; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/data/elasticsearch/ElasticsearchDataAutoConfiguration.class]]
2017-05-16 18:37:24.859  INFO 7108 --- [           main] org.elasticsearch.plugins                : [Rawhide Kid] modules [], plugins [], sites []
2017-05-16 18:37:46.911  INFO 7108 --- [           main] org.elasticsearch.client.transport       : [Rawhide Kid] failed to connect to node [{#transport#-1}{55.66.223.158}{55.66.223.158:9200}], removed from nodes list

org.elasticsearch.transport.ConnectTransportException: [][55.66.223.158:9200] connect_timeout[30s]
    at org.elasticsearch.transport.netty.NettyTransport.connectToChannelsLight(NettyTransport.java:967) ~[elasticsearch-2.4.4.jar:2.4.4]
    at org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:933) ~[elasticsearch-2.4.4.jar:2.4.4]
    at org.elasticsearch.transport.netty.NettyTransport.connectToNodeLight(NettyTransport.java:906) ~[elasticsearch-2.4.4.jar:2.4.4]
    at org.elasticsearch.transport.TransportService.connectToNodeLight(TransportService.java:267) ~[elasticsearch-2.4.4.jar:2.4.4]
    at org.elasticsearch.client.transport.TransportClientNodesService$SimpleNodeSampler.doSample(TransportClientNodesService.java:390) ~[elasticsearch-2.4.4.jar:2.4.4]
    at org.elasticsearch.client.transport.TransportClientNodesService$NodeSampler.sample(TransportClientNodesService.java:336) [elasticsearch-2.4.4.jar:2.4.4]
    at org.elasticsearch.client.transport.TransportClientNodesService.addTransportAddresses(TransportClientNodesService.java:187) [elasticsearch-2.4.4.jar:2.4.4]
    at org.elasticsearch.client.transport.TransportClient.addTransportAddress(TransportClient.java:243) [elasticsearch-2.4.4.jar:2.4.4]
    at com.mkyong.EsConfig.client(EsConfig.java:45) [classes/:na]
    at com.mkyong.EsConfig$$EnhancerBySpringCGLIB$$7e0ccfee.CGLIB$client$0(<generated>) [classes/:na]
    at com.mkyong.EsConfig$$EnhancerBySpringCGLIB$$7e0ccfee$$FastClassBySpringCGLIB$$83a2b819.invoke(<generated>) [classes/:na]
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356) [spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at com.mkyong.EsConfig$$EnhancerBySpringCGLIB$$7e0ccfee.client(<generated>) [classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_65]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_65]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_65]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_65]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instant

Есть идеи, что мне нужно сделать, чтобы подключиться к экземпляру эластичного поиска на Amazon?

Спасибо, Дэмиен.