没有使用ElasticSearch索引数据？

Question

我有以下java代码：

            Node node  = nodeBuilder().clusterName("mycluster").node();
            Client client = node.client();
String json = "{" +
        "\"user\":\"kimchy\"," +
        "\"postDate\":\"2013-01-30\"," +
        "\"message\":\"trying out Elasticsearch\"" +
    "}";

IndexResponse response = client.prepareIndex("twitter", "tweet")
        .setSource(json)
        .execute()
        .actionGet();

我看到没有＆＃34; twitter＆＃34;索引被创建，没有文档。在此之后我还有另一步吗？

当我添加＆＃34; .client（true）＆＃34;时，我得到以下内容：

Exception in thread "main" org.elasticsearch.discovery.MasterNotDiscoveredException: waited for [1m]
    at org.elasticsearch.action.support.master.TransportMasterNodeOperationAction$4.onTimeout(TransportMasterNodeOperationAction.java:164)
    at org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:239)
    at org.elasticsearch.cluster.service.InternalClusterService$NotifyTimeout.run(InternalClusterService.java:520)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)