[英]Is Anything wrong in my query .Nest elastic C#
我的.Nest libs查询中有什么问题吗? 我的查询将获得所有数据,我需要多学期获得。 查询字符串弹性结果我想:
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 1000,
"max_score": 0,
"hits": []
},
"aggregations": {
"log_query": {
"doc_count": 2,
"histogram_Log": {
"buckets": [
{
"key_as_string": "06/02/2015 12:00:00",
"key": 1423180800000,
"doc_count": 1
},
{
"key_as_string": "21/02/2015 12:00:00",
"key": 1424476800000,
"doc_count": 1
}
]
}
}
}
}
我的查询字符串弹性:
{
"size": 0,
"aggs": {
"log_query": {
"filter": {
"bool": {
"must": [
{
"term": {
"cluster": "giauht1"
}
},
{
"term": {
"server": "hadoop0"
}
},
{
"term": {
"type": "Warn"
}
},
{
"range": {
"actionTime": {
"gte": "2015-02-01",
"lte": "2015-02-24"
}
}
}
]
}
},
"aggs": {
"histogram_Log": {
"date_histogram": {
"field": "actionTime",
"interval": "1d",
"format": "dd/MM/YYYY hh:mm:ss"
}
}
}
}
}
}
我的.nest库查询:
Func<SearchDescriptor<LogInfoIndexView>, SearchDescriptor<LogInfoIndexView>> query =
que => que.Aggregations(aggs => aggs.Filter("log_query", fil =>
{
fil.Filter(fb => fb.Bool(fm => fm.Must(
ftm =>
{
ftm.Term(t => t.Cluster, cluster);
ftm.Term(t => t.Server, server);
ftm.Term(t => t.Type, logLevel);
ftm.Range(r => r.OnField("actionTime").GreaterOrEquals(from.Value).LowerOrEquals(to.Value));
return ftm;
}))).Aggregations(faggs => faggs.DateHistogram("histogram_Log", dr =>
{
dr.Field("actionTime");
dr.Interval("1d");
dr.Format("dd/MM/YYYY hh:mm:ss");
return dr;
}));
return fil;
})).Size(0).Type(new LogInfoIndexView().TypeName);
var result = client.Search(query);
我的模型映射:
{
"onef-sora": {
"mappings": {
"FPT.OneF.Api.Log": {
"properties": {
"actionTime": {
"type": "date",
"format": "dateOptionalTime"
},
"application": {
"type": "string",
"index": "not_analyzed"
},
"cluster": {
"type": "string",
"index": "not_analyzed"
},
"detail": {
"type": "string",
"index": "not_analyzed"
},
"iD": {
"type": "string"
},
"message": {
"type": "string",
"index": "not_analyzed"
},
"server": {
"type": "string",
"index": "not_analyzed"
},
"source": {
"type": "string",
"index": "not_analyzed"
},
"tags": {
"type": "string",
"index": "not_analyzed"
},
"type": {
"type": "string",
"index": "not_analyzed"
},
"typeLog": {
"type": "string"
},
"typeName": {
"type": "string"
},
"url": {
"type": "string",
"index": "not_analyzed"
},
"user": {
"type": "string",
"index": "not_analyzed"
}
}
}
}
}
}
传递给Bool()
过滤器的Must()
条件采用了params Func<FilterDescriptor<T>, FilterContainer>[]
但是在过滤器中, Term()
和Range()
过滤器被链接到同一个过滤器实例上; 不幸的是,这也不行,你可能会想到最终的结果实际上是传递到一个空的JSON对象must
子句中的查询DSL的过滤器,即你结束了
{
"size": 0,
"aggs": {
"log_query": {
"filter": {
"bool": {
"must": [
{} /* where are the filters?! */
]
}
},
"aggs": {
"histogram_Log": {
"date_histogram": {
"field": "actionTime",
"interval": "1d",
"format": "dd/MM/YYYY hh:mm:ss"
}
}
}
}
}
}
解决方案是传递一个Func<FilterDescriptor<T>, FilterContainer>
的数组; 以下内容与您的查询DSL相匹配
void Main()
{
var settings = new ConnectionSettings(new Uri("http://localhost:9200"));
var connection = new InMemoryConnection(settings);
var client = new ElasticClient(connection: connection);
DateTime? from = new DateTime(2015, 2,1);
DateTime? to = new DateTime(2015, 2, 24);
var docs = client.Search<LogInfoIndexView>(s => s
.Size(0)
.Type("type")
.Aggregations(a => a
.Filter("log_query", f => f
.Filter(ff => ff
.Bool(b => b
.Must(m => m
.Term(t => t.Cluster, "giauht1"),
m => m
.Term(t => t.Server, "hadoop0"),
m => m
.Term(t => t.Type, "Warn"),
m => m
.Range(r => r.OnField("actionTime").GreaterOrEquals(from.Value).LowerOrEquals(to.Value))
)
)
)
.Aggregations(aa => aa
.DateHistogram("histogram_Log", da => da
.Field("actionTime")
.Interval("1d")
.Format("dd/MM/YYYY hh:mm:ss")
)
)
)
)
);
Console.WriteLine(Encoding.UTF8.GetString(docs.RequestInformation.Request));
}
public class LogInfoIndexView
{
public string Cluster { get; set; }
public string Server { get; set; }
public string Type { get; set; }
public DateTime ActionTime { get; set; }
}
回国
{
"size": 0,
"aggs": {
"log_query": {
"filter": {
"bool": {
"must": [
{
"term": {
"cluster": "giauht1"
}
},
{
"term": {
"server": "hadoop0"
}
},
{
"term": {
"type": "Warn"
}
},
{
"range": {
"actionTime": {
"lte": "2015-02-24T00:00:00.000",
"gte": "2015-02-01T00:00:00.000"
}
}
}
]
}
},
"aggs": {
"histogram_Log": {
"date_histogram": {
"field": "actionTime",
"interval": "1d",
"format": "dd/MM/YYYY hh:mm:ss"
}
}
}
}
}
}
编辑:
在回答您的评论时, filtered query filter
和filter aggregation
之间的区别在于前者在查询阶段开始时将过滤应用于所有文档,过滤器通常被缓存,从而提高了使用这些过滤器的后续查询的性能,同时后者适用于聚合范围,以将当前上下文中的文档过滤到单个存储桶。 如果您的查询仅用于执行聚合,并且您可能使用相同的过滤器运行聚合,我认为filtered query filter
应该提供更好的性能。
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