使用 Nest (Elasticsearch) 执行 DeleteByQuery 时获取 "An item with this key has already been added"

Question

我正在尝试运行删除查询以删除索引中两个时间戳之间的文档，但我得到了一个非常奇怪的结果。

这是我的代码：

// how the index is created
if (!es.IndexExists(indexName).Exists)
{
    es.CreateIndex(descriptor => descriptor
        .Index(indexName)
        .AddMapping<MyDocument>(m => m
            .MapFromAttributes()));
}

// event object that is mapped
public class MyDocument
{
    public long Id { get; set; }

    public long EventTime { get; set; }

    [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
    public string EventType { get; set; }

    public DateTime CreatedAt { get; set; }

    public IDictionary<string, object> Values { get; set; }
    // snip
}

// delete call
IElasticClient es;
es.DeleteByQuery<MyDocument>(q => q
    .Query(rq => rq
        .Range(t => t.OnField("eventTime").GreaterOrEquals(startTimestamp).LowerOrEquals(endTimestamp)));

这会抛出一个异常 "An item with the same key has already been added"。这个会引发此异常的删除查询我做错了什么？

这是我通过 elasticsearch 进行的搜索中的示例文档：

{
  "took" : 8,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 96,
    "max_score" : 1.0,
    "hits" : [ {
      "_index" : "testing2",
      "_type" : "mydocument",
      "_id" : "112",
      "_score" : 1.0,
      "_source":{"id":112,"eventTime":12345690,"eventDate":"1970-05-23T17:21:30-04:00","eventTypeId":0,"ready":false,"name":"","doccount":0,"wordcount":0,"createdAt":"2015-06-25T09:29:33.8996707-04:00","values":{"internal_timestamp":76890.0},"childDocuments":[],"parentDocuments":[]}
    }, /* snip */]
  }
}

Answer 1

Rob 和我刚刚解决了这个问题。

这里出现的问题是我的项目使用 Newtonsoft.Json 版本 7.0.0 和 Nest 版本 1.5.1，而 Nest 1.5.1 需要 6.0.1 .这种不匹配导致查询的序列化抛出异常。

这可以通过将 Nest 升级到版本 1.6.1 或将 Newtonsoft.Json 降级到版本 6.0.1 来解决。

Answer 2

我只是将 newtonsoft.json 更新到最新版本。我当前的版本是 5.0.1，我已经更新到 9.0.1。之后，错误消失了。

使用 Nest (Elasticsearch) 执行 DeleteByQuery 时获取 "An item with this key has already been added"

Getting "An item with this key has already been added" when performing a DeleteByQuery with Nest (Elasticsearch)

c#

elasticsearch

nest