I am trying to read data from a cosmos collection using DocumentClient
, while trying to read, sometimes I am getting the following error.
Code:
var Client = new DocumentClient(new Uri(accountUri), accountKey);
var collectionLink = UriFactory.CreateDocumentCollectionUri(database, collection);
var query = Client.CreateDocumentQuery<T1>(collectionLink, feedOptions);
var queryable = query.AsDocumentQuery();
var list = new List<T>();
while (queryable.HasMoreResults){
// note that ExecuteNextAsync can return many records in each call
var response = await queryable.ExecuteNextAsync<T>();
list.AddRange(response);
}
return list.FirstOrDefault();
Error:
Unable to read data from the transport connection: Operation canceled. Operation canceled
I tried few threads related to this error but that doesn't help.
Stack Trace:
Exception: at System.Net.Http.HttpConnection.SendAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.SendWithNtConnectionAuthAsync(HttpConnection connection, HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)
at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at Microsoft.Azure.Documents.Client.DocumentClient.HttpRequestMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts) at Microsoft.Azure.Documents.GatewayStoreModel.<>c__DisplayClass20_0.<<InvokeAsync>b__0>d.MoveNext() --- End of stack trace from previous location where exception was thrown ---
at Microsoft.Azure.Documents.BackoffRetryUtility`1.<>c__DisplayClass1_0.<<ExecuteAsync>b__0>d.MoveNext() --- End of stack trace from previous location where exception was thrown ---
at Microsoft.Azure.Documents.BackoffRetryUtility`1.ExecuteRetryAsync(Func`1 callbackMethod, Func`3 callShouldRetry, Func`1 inBackoffAlternateCallbackMethod, TimeSpan minBackoffForInBackoffCallback, CancellationToken cancellationToken, Action`1 preRetryCallback) at Microsoft.Azure.Documents.ShouldRetryResult.ThrowIfDoneTrying(ExceptionDispatchInfo capturedException)
at Microsoft.Azure.Documents.BackoffRetryUtility`1.ExecuteRetryAsync(Func`1 callbackMethod, Func`3 callShouldRetry, Func`1 inBackoffAlternateCallbackMethod, TimeSpan minBackoffForInBackoffCallback, CancellationToken cancellationToken, Action`1 preRetryCallback)
at Microsoft.Azure.Documents.BackoffRetryUtility`1.ExecuteAsync(Func`1 callbackMethod, IRetryPolicy retryPolicy, CancellationToken cancellationToken, Action`1 preRetryCallback) at Microsoft.Azure.Documents.GatewayStoreModel.InvokeAsync(DocumentServiceRequest request, ResourceType resourceType, CancellationToken cancellationToken)
at Microsoft.Azure.Documents.GatewayStoreModel.ProcessMessageAsync(DocumentServiceRequest request, CancellationToken cancellationToken)
at Microsoft.Azure.Documents.Client.DocumentClient.ExecuteQueryAsync(DocumentServiceRequest request, CancellationToken cancellationToken)
Note: The collection might be frequently and parallely accessed.
Please help me to resolve this error.
Thanks in Advance.