當使用SniffingConnectionPool時出現嵌套2.4.6錯誤

Question

沒有SniffingConnectionPool似乎工作。

var settings2 = new ConnectionSettings(new Uri(elasticSearchUri)) 
_elasticClient = new ElasticClient(settings2); 

但在下面ConnectionSettings使用SniffingConnectionPool：在下面錯誤

var settings2 = new ConnectionSettings(new SniffingConnectionPool(new[] { new Uri(elasticSearchUri) })) 
       .DefaultIndex("myindex") 
       .DisableDirectStreaming(true); 

結果： 「失敗嗅探簇狀態」。

Splunk的日誌

Unable to import data to ElasticSearch - Failed sniffing cluster state.    PipelineException Project.ScheduledJobService LOCAL ERROR 
Unable to import data to ElasticSearch - One or more errors occurred.    AggregateException Project.ScheduledJobService LOCAL ERROR 
Unable to import data to ElasticSearch - Object reference not set to an instance of an object. 
NullReferenceException Project.ScheduledJobService 

完全跟蹤：

at Elasticsearch.Net.RequestPipeline.Sniff() in C:\Users\russ\source\elasticsearch-net-2.x\src\Elasticsearch.Net\Transport\Pipeline\RequestPipeline.cs:line 358 
    at Elasticsearch.Net.RequestPipeline.FirstPoolUsage(SemaphoreSlim semaphore) in C:\Users\russ\source\elasticsearch-net-2.x\src\Elasticsearch.Net\Transport\Pipeline\RequestPipeline.cs:line 143 
    at Elasticsearch.Net.Transport`1.Request[TReturn](HttpMethod method, String path, PostData`1 data, IRequestParameters requestParameters) in C:\Users\russ\source\elasticsearch-net-2.x\src\Elasticsearch.Net\Transport\Transport.cs:line 53 
    at Elasticsearch.Net.ElasticLowLevelClient.DoRequest[T](HttpMethod method, String path, PostData`1 data, IRequestParameters requestParameters) in C:\Users\russ\source\elasticsearch-net-2.x\src\Elasticsearch.Net\ElasticLowLevelClient.cs:line 58 
    at Elasticsearch.Net.ElasticLowLevelClient.Bulk[T](PostData`1 body, Func`2 requestParameters) in C:\Users\russ\source\elasticsearch-net-2.x\src\Elasticsearch.Net\ElasticLowLevelClient.Generated.cs:line 32 
    at Nest.LowLevelDispatch.BulkDispatch[T](IRequest`1 p, PostData`1 body) in C:\Users\russ\source\elasticsearch-net-2.x\src\Nest\_Generated\_LowLevelDispatch.generated.cs:line 26 
    at Nest.ElasticClient.Nest.IHighLevelToLowLevelDispatcher.Dispatch[TRequest,TQueryString,TResponse](TRequest request, Func`3 responseGenerator, Func`3 dispatch) in C:\Users\russ\source\elasticsearch-net-2.x\src\Nest\ElasticClient.cs:line 56 
    at Nest.ElasticClient.Nest.IHighLevelToLowLevelDispatcher.Dispatch[TRequest,TQueryString,TResponse](TRequest request, Func`3 dispatch) in C:\Users\russ\source\elasticsearch-net-2.x\src\Nest\ElasticClient.cs:line 46 
    at Nest.ElasticClient.Bulk(IBulkRequest request) in C:\Users\russ\source\elasticsearch-net-2.x\src\Nest\Document\Multiple\Bulk\ElasticClient-Bulk.cs:line 32 
    at Project.Core.Services.ElasticSearchService.IndexMultiple(IEnumerable`1 documents) 
    at Project.ScheduledJobService.Jobs.ElasticSearch.ElasticSearchTrackedChangesDataImportJob.Execute() in C:\Users\Martynas.Valaika\Code\Project\Main\Source\Project\Project.ScheduledJobService\Jobs\Elasticsearch\ElasticSearchTrackedChangesDataImportJob.cs:line 35 

Answer 1

顯然存在ES 5.0的bug。將SniffingConnectionPool替換爲SingleNodeConnectionPool應該完成這項工作。

var pool = new SingleNodeConnectionPool(new Uri(uri)); 
       var settings = new ConnectionSettings(pool, connectionSettings => new MyJsonNetSerializer(connectionSettings)) 
        .DefaultIndex("seetickets_search_results") 
        .DisableDirectStreaming(); 

       _elasticClient = new ElasticClient(settings);