How to filter specific Exceptions? #6496 | Support

william@iwell.nl created one year ago

ABP Framework version: v7
UI Type: Angular
Database System: EF Core (SQL Server)
Tiered (for MVC) or Auth Server Separated (for Angular): Auth server angular

When a request is cancelled by the browser, the logs show an error (see below). However this is expected behaviour and should not be logged as error as it clutters our logs. Can you guide us in how to filter this error message from the logs?

I have read the documentation about exception handling, but did not find a way https://docs.abp.io/en/abp/latest/Exception-Handling

I've created a SuppressTaskCanceledExceptionFilter. Is that the best way to go, as it inherits and overrides the AbpExceptionFilter? Better to add another filter, is there a way to do so?
After creating the filter I see the message is partially gone. Only the 'An error occurred using the connection to database' stays. How to get rid of that line?

[15:48:35 ERR] An error occurred using the connection to database 'portal-test' on server '.'.
[15:48:35 ERR] ---------- RemoteServiceErrorInfo ----------
{
  "code": null,
  "message": "An internal error occurred during your request!",
  "details": null,
  "data": {},
  "validationErrors": null
}

[15:48:35 ERR] A task was canceled.
System.Threading.Tasks.TaskCanceledException: A task was canceled.
   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Stor

using Microsoft.AspNetCore.Mvc.Filters;
    using System.Threading.Tasks;
    [ExposeServices(typeof(AbpExceptionFilter), typeof(IAsyncExceptionFilter))]
    public class SuppressTaskCanceledExceptionFilter : AbpExceptionFilter, ITransientDependency
    {
        public override Task OnExceptionAsync(ExceptionContext context)
        {
            if (context.Exception is TaskCanceledException)
            {
                context.ExceptionHandled = true; // This will suppress the logging
                return Task.CompletedTask;
            }

            return base.OnExceptionAsync(context);
        }
    }

6 Answer(s)

maliming created one year ago

Support Team Fullstack Developer

You can filter it by logger.

https://github.com/serilog/serilog-expressions?tab=readme-ov-file#filtering-example

var loggerConfiguration = new LoggerConfiguration()
    .MinimumLevel.Debug()
    .Filter.ByExcluding(logEvent =>
    {
        //check the exception

        return false or true;
    })
    .WriteTo.Console();

0

william@iwell.nl created one year ago

Thanks, adding the filter will remove the [15:48:35 ERR] A task was canceled. System.Threading.Tasks.TaskCanceledException: A task was canceled. line.

However 3 other lines are still there. Any suggestion how to suppress/filter those?

[16:46:01 ERR] An error occurred using the connection to database 'portal-test' on server '.'. [16:46:01 ERR] ---------- RemoteServiceErrorInfo ---------- { "code": null, "message": "An internal error occurred during your request!", "details": null, "data": {}, "validationErrors": null }

[16:46:01 ERR] HTTP GET /api/app/cubes?skipCount=0&maxResultCount=20 responded 500 in 1303.3537 ms

maliming created one year ago

Support Team Fullstack Developer

Replace AbpExceptionFilter and AbpExceptionPageFilter with yours

context.Services.Configure<MvcOptions>(options =>
{
    options.Filters.ReplaceOne(
        f => f is ServiceFilterAttribute fa && fa.ServiceType == typeof(AbpExceptionFilter),
        new ServiceFilterAttribute(typeof(YourAbpExceptionFilter))
    );

    options.Filters.ReplaceOne(
        f => f is ServiceFilterAttribute fa && fa.ServiceType == typeof(AbpExceptionPageFilter),
        new ServiceFilterAttribute(typeof(YourAbpExceptionPageFilter))
    );
});

https://github.com/abpframework/abp/blob/rel-8.0/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/AbpExceptionFilter.cs#L83

https://github.com/abpframework/abp/blob/rel-8.0/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/AbpExceptionPageFilter.cs#L68

0
william@iwell.nl created one year ago
Thanks, the adding the filter indeed removes two of the three log entries.

There is just one entry left, see below. Any idea how to suppress/filter that one?

[16:46:01 ERR] An error occurred using the connection to database 'portal-test' on server '.'.
0

maliming created one year ago
Support Team Fullstack Developer

hi

I think you can exclude this message by ByExcluding

william@iwell.nl created one year ago

Thanks, that works. Added it like this.

Log.Logger = new LoggerConfiguration()
               .Filter.ByExcluding(logEvent => logEvent.MessageTemplate.Text.StartsWith("An error occurred using the connection to database"))
               .ReadFrom.Configuration(configuration)
                .CreateLogger();

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