Activités de "DominaTang"

hi

There are some timeout settings that you can use in your MongoDB connection string.

https://www.mongodb.com/docs/manual/reference/connection-string/

I don't have long transaction, the entrance API the UnitOfWork is disabled. with the process, any place needs Db access, I create a new unit of work with new transaction.

I found a very strange behavior, in every repository Insert/Update call, I give auto save parameter true and wrap with an unit of work, however, it until around 20 seconds later after API is done, then the new data would shown in Db, I can see number of records increasing via MongoDb. But UI subscribe to the API method already done and show an intermediate status of progress.

I have a question, if the entrance App Service method has [UnitOfWork] disabled, do I need to add this to every app service methods for the whole stack?

There is also Blob code called, I see exception below, though the Save method is await _container.SaveAsync(fileNamePath, bytes, true);

Azure.RequestFailedException: The specified container already exists. RequestId:c84c6932-d01e-0065-7d95-ea64f5000000 Time:2023-09-19T01:06:57.2040621Z Status: 409 (The specified container already exists.) ErrorCode: ContainerAlreadyExists

Content: <?xml version="1.0" encoding="utf-8"?><Error><Code>ContainerAlreadyExists</Code><Message>The specified container already exists. RequestId:c84c6932-d01e-0065-7d95-ea64f5000000 Time:2023-09-19T01:06:57.2040621Z</Message></Error>

Headers: Server: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0 x-ms-request-id: c84c6932-d01e-0065-7d95-ea64f5000000 x-ms-client-request-id: 2a718994-11d6-4088-8cf6-5a77e3014d89 x-ms-version: 2023-01-03 x-ms-error-code: ContainerAlreadyExists Date: Tue, 19 Sep 2023 01:06:56 GMT Content-Length: 230 Content-Type: application/xml

at Azure.Storage.Blobs.ContainerRestClient.CreateAsync(Nullable1 timeout, IDictionary2 metadata, Nullable1 access, String defaultEncryptionScope, Nullable1 preventEncryptionScopeOverride, CancellationToken cancellationToken) at Azure.Storage.Blobs.BlobContainerClient.CreateInternal(PublicAccessType publicAccessType, IDictionary`2 metadata, BlobContainerEncryptionScopeOptions encryptionScopeOptions, Boolean async, CancellationToken cancellationToken, String operationName)**

hi

is it because Abp gateway's auto feature?

Is your project a microservice? Otherwise, it does not have a gateway project. Do you use a reverse proxy?

Yes, it is Micro Service project. I modify settings to this: "QoSOptions": { "ExceptionsAllowedBeforeBreaking": 1, "DurationOfBreak": 1000, "TimeoutValue": 1200000 } Seems work as expected locally. But not deployed site yet. I also met a very weird null reference exception at the line, _entityAppServe.GetById (uniqueId); which _entityAppService is a App Service in another Micro Service, it means _entityAppService is null, it is not always happen, but occasionally happens, I don't understand why.

Now I suspect it is because that Request Time out settings of .Host project, I tested locally, since change the settings, has no impact. Locally testing can always process large data, but for deployed code, the application throw exception at certain amount of data. I also noticed that the request is triggered again when first request failed, is it because Abp gateway's auto feature?

Hi @maiiming,

I sent you exception call stack via email.

The code disable entrance API's unit of work, because the whole process involves other resources access which might take long time, wrap data access code by unit of work at the steps need to access database.

Thanks, Domina

When Angular calls API which trigger a long operational call, the entrance App Service method has [UnitOfWork(IsDisabled = true)]. This App Service call several other App Services. Within these App Services there are several places need to access/update MongdoDb, for those data access, use code below:

using (var uow = _unitOfWorkManager.Begin(requiresNew: true, isTransactional: true))
 {
    ...
    await uow.CompleteAsync();         
}

But still MongoDb throw exception. For these App Services Methods called by entrance App Service, do I need to add [UnitOfWork(IsDisabled = true)] annotation too? Thanks,

• ABP Framework version: v7.2.1
• UI Type: Angular
• Database System: MongoDB
• Tiered (for MVC) or Auth Server Separated (for Angular): yes
• Exception message and full stack trace: MongoDB.Driver.MongoCommandException:

   at MongoDB.Driver.Core.WireProtocol.CommandUsingCommandMessageWireProtocol`1.ProcessResponse (MongoDB.Driver.Core, Version=2.15.1.0, Culture=neutral, PublicKeyToken=null)
   at MongoDB.Driver.Core.WireProtocol.CommandUsingCommandMessageWireProtocol`1+<ExecuteAsync>d__20.MoveNext (MongoDB.Driver.Core, Version=2.15.1.0, Culture=neutral, PublicKeyToken=null)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at MongoDB.Driver.Core.Servers.Server+ServerChannel+<ExecuteProtocolAsync>d__20`1.MoveNext (MongoDB.Driver.Core, Version=2.15.1.0, Culture=neutral, PublicKeyToken=null)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at MongoDB.Driver.Core.Operations.RetryableReadOperationExecutor+&lt;ExecuteAsync&gt;d__3`1.MoveNext (MongoDB.Driver.Core, Version=2.15.1.0, Culture=neutral, PublicKeyToken=null)
 ...
   at Volo.Abp.Auditing.AuditingInterceptor+<InterceptAsync>d__2.MoveNext (Volo.Abp.Auditing, Version=7.2.1.0, Culture=neutral, PublicKeyToken=null)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Volo.Abp.Castle.DynamicProxy.CastleAsyncAbpInterceptorAdapter`1+&lt;InterceptAsync&gt;d__3`1.MoveNext (Volo.Abp.Castle.Core, Version=7.2.1.0, Culture=neutral, PublicKeyToken=null)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Castle.DynamicProxy.AsyncInterceptorBase+<ProceedAsynchronous>d__14`1.MoveNext (Castle.Core.AsyncInterceptor, Version=2.1.0.0, Culture=neutral, 

From Angular App, console: POST https://localhost:44325/signalr-hubs/messaginghub/negotiate?negotiateVersion=1 502

From Gateway log: web-gateway_4420d4f8-1]: [13:53:47 DBG] requestId: 0HMT7TSEGNSB6:0000000D, previousRequestId: no previous request id, message: Downstream url is http://localhost:45186/signalr-hubs/messaginghub/negotiate?negotiateVersion=1 [web-gateway_4420d4f8-1]: [13:53:47 DBG] requestId: 0HMT7TSEGNSB6:0000000D, previousRequestId: no previous request id, message: IHttpRequester returned an error, setting pipeline error [web-gateway_4420d4f8-1]: [13:53:47 WRN] requestId: 0HMT7TSEGNSB6:0000000D, previousRequestId: no previous request id, message: Error Code: ConnectionToDownstreamServiceError Message: Error connecting to downstream service, exception: System.Net.Http.HttpRequestException: An error occurred while sending the request. [web-gateway_4420d4f8-1]: ---> System.IO.IOException: The response ended prematurely.

• ABP Framework version: v7.2.1 - Micro Service
• UI Type: Angular
• Database System: MongoDB
• Tiered (for MVC) or Auth Server Separated (for Angular): yes

Do you have a sample code for SignalR send message to Angular app. Angular get 502 for negociate.

In Micro Service Application module: typeof(AbpAutoMapperModule),

Configure<AbpSignalROptions>(options =>
{
    options.Hubs.AddOrUpdate(
        typeof(NotificationHub), //Hub type
        config => //Additional configuration
        {
            config.ConfigureActions.Add(hubOptions =>
            {
                //Additional options
                hubOptions.LongPolling.PollTimeout = TimeSpan.FromSeconds(30);
            });
        }
    );
});

In Gateway module:

app.UseWebSockets();
        app.UseOcelot().Wait();
        app.UseRouting()

{
      "ServiceKey": "SignalR Service",
      "DownstreamPathTemplate": "/signalr-hubs/{evertything}",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 45186
        }
      ],
      "UpstreamHttpMethod": [ "POST" ],
      "UpstreamPathTemplate": "/signalr-hubs/{evertything}",
      "ReRouteIsCaseSensitive": false
    },
    {
      "ServiceKey": "SignalR Service",
      "DownstreamPathTemplate": "/signalr-hubs/{everything}",
      "ReRouteIsCaseSensitive": false,
      "DownstreamScheme": "ws",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 45186
        }
      ],
      "UpstreamPathTemplate": "/signalr-hubs/{anyHub}",
      "UpstreamHttpMethod": [ "GET", "POST", "PUT", "DELETE", "OPTIONS" ]
    },

Figured out the reason. It is because of wrong grand type setting (should use grand type "code", but the angular app users resource owner.

Hi Ming,

With Dev Tools, we check network traffic and cookies, current tenant's Id is null. That is why this ticket is raised. But Developer local debugging, everything seems fine.

Thanks, Domina