EsSpark.saveTo报错：EsHadoopNoNodesLeftException: Connection error (check network and/or proxy settings

报错：

报错1：
Get org.elasticsearch.hadoop.rest.EsHadoopNoNodesLeftException: Connection 
error (check network and/or proxy settings)- all nodes failed; tried

报错2：
org.elasticsearch.hadoop.EsHadoopIllegalArgumentException: Discovery cannot be 
enabled when running in WAN mode

解决：

添加下面参数：

"es.nodes.wan.only" -> "true"

如果有设置则移除下面参数：

es.nodes.discovery

参考链接：链接

完！