> 现在不支持权限的配置

从 Elasticsearch5ApiCallBridge.java 第 82 行和 MetricElasticsearchSink.java 第 49 行开始，然后跟踪 Elasticsearch 设置如何传递到 sink。启用权限后，使用 Elasticsearch 5.6.14 重现报告的问题；完成的标准是 sink 可以连接到受保护的集群，且不再出现报告的客户端连接错误。

现在不支持权限的配置
@yangsishu
配置了es，无权限的，es版本5.6.14，运行报如下错误，请问是什么问题？
java.lang.RuntimeException: Elasticsearch client is not connected to any Elasticsearch nodes! at org.apache.flink.streaming.connectors.elasticsearch5.Elasticsearch5ApiCallBridge.createClient(Elasticsearch5ApiCallBridge.java:82) at org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchSinkBase.open(ElasticsearchSinkBase.java:287) at com.dtstack.flink.sql.sink.elasticsearch.MetricElasticsearchSink.open(MetricElasticsearchSink.java:49) at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:36) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:102) at org.apache.flink.streaming.api.operators.StreamSink.open(StreamSink.java:48) at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:420) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:296) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:712) at java.lang.Thread.run(Thread.java:748) 05/30/2019 11:08:34 Job execution switched to status FAILING.

Originally posted by @gangly in https://github.com/DTStack/flinkStreamSQL/issues/125#issuecomment-497185987