ElasticSearch java客户端更新时出现的错误：NoNodeAvailableException[None of the configured nodes are available

下午尝试 用ElasticSearch  的java客户端去做数据检索工作，测试了一下批量更新，代码如下：

public static void bulkUpdateGoods(List<Goods> goods) throws IOException, InterruptedException, ExecutionException {
        Client client = null;
        try {
            client = TransportClient.builder().build()
                    .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("hadoop-slave4"), 9300));

        } catch (Exception e) {
            e.printStackTrace();
        }

        BulkRequestBuilder req = client.prepareBulk();

        for (Goods good : goods) {
            req.add(client.prepareIndex("smms", "goods", good.getId() + "")
                    .setSource(jsonBuilder().startObject().field("unit", good.getUnit()).field("price", good.getPrice())
                            .field("name", good.getName()).field("barcode", good.getBarCode()).endObject()));
        }

        BulkResponse res = req.execute().actionGet();

        if (res.hasFailures()) {
            System.out.println("Error");
        } else {
            System.out.println("Done");
        }

        client.close();
    }
}

但是测试的时候老是给我报这个错误：NoNodeAvailableException[None of the configured nodes are available。具体没截图。

然后我改正两点后解决问题，一处是用9300端口 而不是9200.9200端口只是HTTP端口。

第二处是我把配置文件里cluter.name给注释掉了，就能用了。具体原理不清楚。