elasticsearch - 在弹性集群模式下创建Java RestHighLevelClient

Question

如果elasticsearch在单一模式下运行，我可以使用以下代码轻松建立RestHighLevel连接:

RestHighLevelClient client = new RestHighLevelClient(
    RestClient.builder(
            new HttpHost("localhost", 9200, "http"),
            new HttpHost("localhost", 9201, "http")));

但是，如果我的 flex 集群有3台计算机，例如“host1”，“host2”，“host3”，如何在集群模式下创建其余的高级客户端？

谢谢

Answer 1

RestHighLevelClient client = new RestHighLevelClient(
        RestClient.builder(
                new HttpHost("host1", 9200, "http"),
                new HttpHost("host2", 9200, "http"),
                new HttpHost("host2", 9200, "http")
        )
);

作为 doc it looks like you were referencing states，RestClient.builder接受要连接的HttpHosts数组。客户端(实际上是ES低级REST客户端)将向这些主机轮询请求。另请参见 Javadoc。