Основное соединение было закрыто, исключение, когда SearchAsync - PullRequest
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Основное соединение было закрыто, исключение, когда SearchAsync

0 голосов
/ 12 марта 2019

Вызов ISearchIndexClient.Documents.SearchAsync (из контроллера WebAPI) иногда выдает HttpRequestException / WebException (несколько раз в день) примерно через 15 секунд после выдачивызов.Большинство поисков в одно и то же время проходит без проблем.Тот же поиск, который выдает, снова будет успешным и займет ~ 80 мсек.

Мы используем одноэлементный экземпляр SearchIndexClient , который контроллер вызывает по нескольким запросам.

Дополнительная информация:

  • Один индекс (~ 17 М документов ~ 60 ГБ), 3 реплики и 12 разделов
  • SDK версии 5.0.0.0
  • Запрос использует только фильтр (например, поиск.ismatch, search.in)
  • Типичная нагрузка:
    • 500-1300 запросов в минуту
    • 2000-3000 загрузок в минуту

Это известная проблема?какие-нибудь обходные пути?

Вот callstack: 

    Error: System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.IO.IOException: Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
       at System.Net.Sockets.Socket.EndReceive(IAsyncResult asyncResult)
       at System.Net.Sockets.NetworkStream.EndRead(IAsyncResult asyncResult)
       --- End of inner exception stack trace ---
       at System.Net.Security._SslStream.EndRead(IAsyncResult asyncResult)
       at System.Net.TlsStream.EndRead(IAsyncResult asyncResult)
       at System.Net.Connection.ReadCallback(IAsyncResult asyncResult)
       --- End of inner exception stack trace ---
       at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
       at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
       --- End of inner exception stack trace ---
       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
       at Microsoft.Rest.RetryDelegatingHandler.<>c__DisplayClass11_0.<<SendAsync>b__1>d.MoveNext()
    --- End of stack trace from previous location where exception was thrown ---
       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
       at Microsoft.Rest.RetryDelegatingHandler.<SendAsync>d__11.MoveNext()
    --- End of stack trace from previous location where exception was thrown ---
       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
       at Microsoft.Azure.Search.DocumentsOperations.<DoContinueSearchWithHttpMessagesAsync>d__21`3.MoveNext()
    --- End of stack trace from previous location where exception was thrown ---
       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
       at Microsoft.Azure.Search.DocumentsOperationsExtensions.<SearchAsync>d__17`1.MoveNext()
...