(1)当我在每个节点上安装elasticsearch-hadoop二进制文件时,Elasticsearch在HDFS上保留索引?(2)如果是,我需要将jar二进制文件放在哪里?elasticsearch-hadoop binaries can be obtained either by downloading them from the elastic.co site aselasticsearch-hadoop binary is suitable for both Hadoop 1.x and Hadoop 2.x (also know