elasticsearch Elasticsearch CouchDB结果包含错误的文档

我最新的_changes提要显示某些文档（大多数已被删除）：

但是，Elasticsearch生成的文档我不知道它们来自何处：

curl http://localhost:9200/portal_development/_search?pretty=true -d  '
{

        "from" : 0, "size" : 20,

      "query" : {
         "query_string" : {
           "query" : "2:*"
          }
        }
    }'

{
  "took" : 33,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 53,
    "max_score" : 1.0,
    "hits" : [ {
      "_index" : "portal_development",
      "_type" : "portal_development",
      "_id" : "Document-3744",
      "_score" : 1.0, "_source" : {...
      }, {
      "_index" : "portal_development",
      "_type" : "portal_development",
      "_id" : "Document-3751",
      "_score" : 1.0, "_source" : {...
    }, {
      "_index" : "portal_development",
      "_type" : "portal_development",
      "_id" : "Document-3732",
      "_score" : 1.0, "_source" : {
    } ]
  }
}

---

这到底是怎么回事？什么原因会导致这种情况？

你是从一个空索引开始的吗？我尝试过删除elasticsearch couchdb river。。。但我还是回到同一个问题上来。我不确定这是否意味着我返回了一个空索引？您是否尝试删除portal\u开发索引？删除河流不会删除数据。哦。。。不，我试试看。如何删除索引？顺便问一下，关于这类东西的文档有哪些好的资源？我需要更深入地了解Elasticsearch。

curl http://localhost:9200/portal_development/_search?pretty=true -d  '
{

        "from" : 0, "size" : 20,

      "query" : {
         "query_string" : {
           "query" : "2:*"
          }
        }
    }'

{
  "took" : 33,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 53,
    "max_score" : 1.0,
    "hits" : [ {
      "_index" : "portal_development",
      "_type" : "portal_development",
      "_id" : "Document-3744",
      "_score" : 1.0, "_source" : {...
      }, {
      "_index" : "portal_development",
      "_type" : "portal_development",
      "_id" : "Document-3751",
      "_score" : 1.0, "_source" : {...
    }, {
      "_index" : "portal_development",
      "_type" : "portal_development",
      "_id" : "Document-3732",
      "_score" : 1.0, "_source" : {
    } ]
  }
}