Elasticsearch中嵌套JSON文档的映射

Question

我已经在ElasticSearch中插入了以下JSON文档。在

{
    "AppName": "undefined",
    "CPUs": 8,
    "Errors": 0,
    "Forms": 2,
    "Group": "Unknown",
    "Language": "en-GB",
    "UserName": "user.name",
    "msgType": "234",
    "bent": "{
       \"ActiveT\": 6,
        \"ErrorM\": \"None\",
        \"Except\": \"None\",
        \"HadErr\": \"false\",
        \"HM\": 62,
        \"NHM\": 57,
        \"Parameter\": \"14331232706\",
        \"ReturnCode\": \"3050\",
        \"Severity\": \"info\",
        \"Timestamp\": \"Tue July0209: 58: 16NZST2015\",
        \"TId\": \"9891319709\",
        \"UserInfo\": \"Unknown\",

    }"

}

我希望能够使用嵌套在里面的字段来绘制图形，比如HM，NHM，ActiveT等。在

my_indes/my_doc_type/info_id

上面的信息作为JSON文档给出，我使用下面的映射映射映射嵌套的JSON结构bent。在

^{pr2}$

我得到以下错误。在

"error" : "ElasticsearchParseException[Failed to parse content to map]; nested: JsonParseException[Unexpected character ('\"' (code 34)): was expecting comma to separate OBJECT entries\n at [Source: org.elasticsearch.common.compress.lzf.LZFCompressedStreamInput@c2f1e8d; line: 122, column: 19]]; ",
  "status" : 400

我使用的映射有什么问题？在