【发布时间】：2019-09-20 21:01:18
【问题描述】：
我有两个具有以下配置的索引和映射
var settings = new ConnectionSettings(new Uri("http://localhost:9200/"));
settings
.DefaultMappingFor<ManagementIndex>(m => m
.IndexName("management")
)
.DefaultMappingFor<PropertyIndex>(m => m
.IndexName("apartmentproperty")
);
var client = new ElasticClient(settings);
1) 属性映射
client.Indices.Create("property", i => i
.Settings(s => s
.NumberOfShards(2)
.NumberOfReplicas(0)
)
.Map<PropertyIndex>(map => map
.AutoMap()
.Properties(p => p
.Nested<PropertyData>(n => n
.Name(c => c.property)
.AutoMap()
.Properties(pp => pp
.Text(c => c
.Name(np => np.city)
.Analyzer("standard")
)
.Text(c => c
.Name(np => np.market)
.Fields(ff => ff
.Text(tt => tt
.Name(np => np.market)
.Analyzer("standard")
)
.Keyword(k => k
.Name("keyword")
.IgnoreAbove(256)
)
)
).Text(c => c
.Name(np => np.name)
.Analyzer("standard")
)
)
)
)
)
);
和
2) 所有者
if (client.Indices.Exists("owner").Exists)
client.Indices.Delete("owner");
client.Indices.Create("owner", i => i
.Settings(s => s
.NumberOfShards(2)
.NumberOfReplicas(0)
)
.Map<OwnerIndex>(map => map
.AutoMap()
.Properties(p => p
.Nested<OwnerProp>(n => n
.Name(c => c.owner)
.AutoMap()
.Properties(pp => pp
.Text(c => c
.Name(np => np.market)
.Fields(ff => ff
.Text(tt => tt
.Name(np => np.market)
.Analyzer("standard")
)
.Keyword(k => k
.Name("keyword")
.IgnoreAbove(256)
)
)
).Text(c => c
.Name(np => np.name)
.Analyzer("standard")
)
)
)
)
)
);
具有以下 POCO 定义
public class PropertyData
{
public string name { get; set; }
public string city { get; set; }
public string market { get; set; }
}
public class PropertyIndex
{
public PropertyData property { get; set; }
}
public class OwnerProp
{
public string name { get; set; }
public string market { get; set; }
}
public class OwnerIndex
{
public OwnerProp owner { get; set; }
}
尝试像这样通过两个索引进行搜索
public async Task<object> SearchPropertiesAsync(string searchQuery, List<string> description, int limit = 25, int skip = 1)
{
var propertyfilters = new List<Func<QueryContainerDescriptor<object>, QueryContainer>>();
var ownerFilters = new List<Func<QueryContainerDescriptor<object>, QueryContainer>>();
if (description.Any())
{
propertyfilters.Add(fq => fq.Terms(t => t.Field("property.market.keyword").Terms(description)));
ownerFilters.Add(fq => fq.Terms(t => t.Field("owner.market.keyword").Terms(description)));
}
var searchResponse = await _elasticClient.SearchAsync<object>(s => s
.Index(Indices.Index(typeof(PropertyIndex)).And(typeof(OwnerIndex)))
.Query(q => (q
.Nested(n => n
.Path(Infer.Field<PropertyIndex>(ff => ff.property))
.Query(nq => nq
.MultiMatch(m => m
.Fields(f => f
.Field(Infer.Field<PropertyIndex>(ff => ff.property.city))
.Field(Infer.Field<PropertyIndex>(ff => ff.property.market))
.Field(Infer.Field<PropertyIndex>(ff => ff.property.name))
)
.Operator(Operator.Or)
.Query(searchQuery)
.Fuzziness(Fuzziness.Auto)
) && +q.Bool(bq => bq.Filter(propertyfilters))
))
) || (q
.Nested(n => n
.Path(Infer.Field<OwnerIndex>(ff => ff.mgmt))
.Query(nq => nq
.MultiMatch(m => m
.Fields(f => f
.Field(Infer.Field<OwnerIndex>(ff => ff.owner.market))
.Field(Infer.Field<OwnerIndex>(ff => ff.owner.name))
)
.Operator(Operator.Or)
.Query(searchQuery)
.Fuzziness(Fuzziness.Auto)
)
&& +q.Bool(bq => bq.Filter(ownerFilters))
))
)
).From((skip - 1) * limit)
.Size(limit)
);
return searchResponse.Documents;
}
调用SearchPropertiesAsync 方法会返回此错误消息（为简洁起见被截断）
....
"index": "owner",
"caused_by": {
"type": "illegal_state_exception",
"reason": "[nested] failed to find nested object under path [property]"
}
....
"index": "property",
"caused_by": {
"type": "illegal_state_exception",
"reason": "[nested] failed to find nested object under path [owner]"
}
请注意，它似乎试图在 property 索引上执行 owner. 的嵌套搜索，并在不存在的 owner 索引上执行 property. 的嵌套搜索。
我觉得这应该是一个非常微不足道的问题，但我现在使用 ElasticSearch 才 4 天，而且对它还是很陌生。
是我做错了什么还是我遗漏了什么。已经搜索了整个互联网，甚至得出了我目前的解决方案。
请注意，当您一次只执行一个索引时，代码可以正常工作，但尝试在多个索引上执行是我的问题所在。任何帮助将不胜感激。
我正在使用 ElasticSearch 7.3.2 和 Nest Client 7.3.0。
我不介意降级到可用的较低版本。
【问题讨论】：
标签： elasticsearch asp.net-core nest elasticsearch.net