我最近升级到了Elasticsearch版本6.1.1，现在我无法从JSON文件批量索引文档。当我内联完成时，它可以正常工作。以下是文档的内容：

{"index" : {}}
{"name": "Carlson Barnes", "age": 34}
{"index":{}}
{"name": "Sheppard Stein","age": 39}
{"index":{}}
{"name": "Nixon Singleton","age": 36}
{"index":{}}
{"name": "Sharron Sosa","age": 33}
{"index":{}}
{"name": "Kendra Cabrera","age": 24}
{"index":{}}
{"name": "Young Robinson","age": 20}

当我运行此命令时，

curl -XPUT 'localhost:9200/subscribers/ppl/_bulk?pretty' -H 'Content-Type: application/json' -d @customers_full.json

我收到此错误：

"error" : {
    "root_cause" : [
      {
        "type" : "illegal_argument_exception",
        "reason" : "The bulk request must be terminated by a newline [\n]"
      }
    ],
    "type" : "illegal_argument_exception",
    "reason" : "The bulk request must be terminated by a newline [\n]"
  },
  "status" : 400

如果我以内联方式和在Elasticsearch 5.x中发送数据，效果很好。我尝试将换行符以及换行符添加到文件末尾。似乎不起作用。