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Published 20 hours ago • verified publisher icon luberda-molinet

FFImageLoading.Exceptions.DownloadAggregateException

Open Genfood opened this issue 5 years ago • 7 comments

Description

If I try to set a ImageSource like this:

<Image Aspect="AspectFill"
       Source="http://loremflickr.com/320/240/product?random=sample.jpg">

I am getting the following exception.

09-03 10:52:24.647 I/mono-stdout( 7828):   at FFImageLoading.Retry.DoAsync[T] (System.Func`1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x0023b] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:65 
09-03 10:52:24.647 I/mono-stdout( 7828):   at FFImageLoading.Cache.DownloadCache.DownloadAndCacheIfNeededAsync (System.String url, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.Config.Configuration configuration, System.Threading.CancellationToken token) [0x00401] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:57 
09-03 10:52:24.648 I/mono-stdout( 7828):   at FFImageLoading.DataResolvers.UrlDataResolver.Resolve (System.String identifier, FFImageLoading.Work.TaskParameter parameters, System.Threading.CancellationToken token) [0x00045] in C:\projects\ffimageloading\source\FFImageLoading.Common\DataResolvers\UrlDataResolver.cs:22 
09-03 10:52:24.648 I/mono-stdout( 7828):   at FFImageLoading.DataResolvers.WrappedDataResolver.Resolve (System.String identifier, FFImageLoading.Work.TaskParameter parameters, System.Threading.CancellationToken token) [0x0004e] in C:\projects\ffimageloading\source\FFImageLoading.Common\DataResolvers\WrappedDataResolver.cs:21 
09-03 10:52:24.648 I/mono-stdout( 7828):   at FFImageLoading.Work.ImageLoaderTask`3[TDecoderContainer,TImageContainer,TImageView].RunAsync () [0x00300] in C:\projects\ffimageloading\source\FFImageLoading.Common\Work\ImageLoaderTask.cs:618 
09-03 10:52:24.648 I/mono-stdout( 7828): ---> (Inner Exception #0) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout
09-03 10:52:24.649 I/mono-stdout( 7828):   at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 
09-03 10:52:24.650 I/mono-stdout( 7828):   at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 
09-03 10:52:24.651 I/mono-stdout( 7828):   at FFImageLoading.Retry.DoAsync[T] (System.Func`1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <---
09-03 10:52:24.651 I/mono-stdout( 7828): 
**FFImageLoading.Exceptions.DownloadAggregateException:** 'One or more errors occurred. (Headers timeout)'

I am using the image in a CollectionView.

Expected Behavior

Images loading normaly.

Basic Information

  • Version with issue: 2.4.11.982
  • Platform: Xamarin.Forms

Genfood avatar Sep 03 '19 10:09 Genfood

I keep getting this Exception as well, no idea what the cause is... works fine on iOS and UWP, but on Android it throws that exception... is it because the HttpClient implentation selected for the Android project is the native Android one and not System.Net.HttpClient?

For whatever reason, it can't load it up, so it does correctly display the ErrorPlaceholder as expected, but then the exception terminates the app, you'd think it'd get swallowed up so it can continue to run. Well, in this case I'd actually expect the desired source image to get loaded up like on the other platforms but you know what I mean.

mzhukovs avatar Sep 11 '19 08:09 mzhukovs

This keeps happening on and off (can go for days without issue, and then out of nowhere, it's back, and has nothing to do with code changes)- zero clue why... @daniel-luberda any ideas?

Image loading failed: https://upload.wikimedia.org/wikipedia/commons/b/b0/PSM_V37_D105_English_tabby_cat.jpg FFImageLoading.Exceptions.DownloadAggregateException: One or more errors occurred. (Headers timeout) (Headers timeout) (Headers timeout) (Headers timeout) ---> FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 at FFImageLoading.Retry.DoAsync[T] (System.Func`1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.A09-23 14:14:45.658 I/mono-stdout(24184): Image loading failed: https://upload.wikimedia.org/wikipedia/commons/b/b0/PSM_V37_D105_English_tabby_cat.jpg

ction onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 --- End of inner exception stack trace --- at FFImageLoading.Retry.DoAsync[T] (System.Func`1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x0023b] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:65 at FFImageLoading.Cache.DownloadCache.DownloadAndCacheIfNeededAsync (System.String url, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.Config.Configuration configuration, System.Threading.CancellationToken token) [0x00401] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:57 at FFImageLoading.DataResolvers.UrlDataResolver.Resolve (System.String identifier, FFImageLoading.Work.TaskParameter parameters, System.Threading.CancellationToken token) [0x00045] in C:\projects\ffimageloading\source\FFImageLoading.Common\DataResolvers\UrlDataResolver.cs:22 at FFImageLoading.DataResolve09-23 14:14:45.658 I/mono-stdout(24184): FFImageLoading.Exceptions.DownloadAggregateException: One or more errors occurred. (Headers timeout) (Headers timeout) (Headers timeout) (Headers timeout) ---> FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout

rs.WrappedDataResolver.Resolve (System.String identifier, FFImageLoading.Work.TaskParameter parameters, System.Threading.CancellationToken token) [0x0004e] in C:\projects\ffimageloading\source\FFImageLoading.Common\DataResolvers\WrappedDataResolver.cs:21 at FFImageLoading.Work.ImageLoaderTask`3[TDecoderContainer,TImageContainer,TImageView].RunAsync () [0x00300] in C:\projects\ffimageloading\source\FFImageLoading.Common\Work\ImageLoaderTask.cs:618 ---> (Inner Exception #0) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\p09-23 14:14:45.658 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195

rojects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 at FFImageLoading.Retry.DoAsync[T] (System.Func`1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <---

---> (Inner Exception #1) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 at FFImageLoading.Retry.DoAsync[T] (System.Func`1[TR09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58

esult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <---

---> (Inner Exception #2) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 at FFImageLoading.Retry.DoAsync[T] (System.Func1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Retry.DoAsync[T] (System.Func1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19

\source\FFImageLoading.Common\Helpers\Retry.cs:19 <---

---> (Inner Exception #3) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 at FFImageLoading.Retry.DoAsync[T] (System.Func`1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <---09-23 14:14:45.659 I/mono-stdout(24184): --- End of inner exception stack trace ---

09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Retry.DoAsync[T] (System.Func1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x0023b] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:65 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache.DownloadAndCacheIfNeededAsync (System.String url, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.Config.Configuration configuration, System.Threading.CancellationToken token) [0x00401] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:57 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.DataResolvers.UrlDataResolver.Resolve (System.String identifier, FFImageLoading.Work.TaskParameter parameters, System.Threading.CancellationToken token) [0x00045] in C:\projects\ffimageloading\source\FFImageLoading.Common\DataResolvers\UrlDataResolver.cs:22 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.DataResolvers.WrappedDataResolver.Resolve (System.String identifier, FFImageLoading.Work.TaskParameter parameters, System.Threading.CancellationToken token) [0x0004e] in C:\projects\ffimageloading\source\FFImageLoading.Common\DataResolvers\WrappedDataResolver.cs:21 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Work.ImageLoaderTask3[TDecoderContainer,TImageContainer,TImageView].RunAsync () [0x00300] in C:\projects\ffimageloading\source\FFImageLoading.Common\Work\ImageLoaderTask.cs:618 09-23 14:14:45.659 I/mono-stdout(24184): ---> (Inner Exception #0) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Retry.DoAsync[T] (System.Func1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <--- 09-23 14:14:45.659 I/mono-stdout(24184): 09-23 14:14:45.659 I/mono-stdout(24184): ---> (Inner Exception #1) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 09-23 14:14:45.659 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 09-23 14:14:45.660 I/mono-stdout(24184): at FFImageLoading.Retry.DoAsync[T] (System.Func1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <--- 09-23 14:14:45.660 I/mono-stdout(24184): 09-23 14:14:45.660 I/mono-stdout(24184): ---> (Inner Exception #2) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout 09-23 14:14:45.660 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 09-23 14:14:45.660 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 09-23 14:14:45.660 I/mono-stdout(24184): at FFImageLoading.Retry.DoAsync[T] (System.Func1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <--- 09-23 14:14:45.660 I/mono-stdout(24184): 09-23 14:14:45.660 I/mono-stdout(24184): ---> (Inner Exception #3) FFImageLoading.Exceptions.DownloadHeadersTimeoutException: Headers timeout 09-23 14:14:45.660 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache.DownloadAsync (System.String url, System.Threading.CancellationToken token, System.Net.Http.HttpClient client, FFImageLoading.Work.TaskParameter parameters, FFImageLoading.DownloadInformation downloadInformation) [0x007c3] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:195 09-23 14:14:45.660 I/mono-stdout(24184): at FFImageLoading.Cache.DownloadCache+<>c__DisplayClass15_0.<DownloadAndCacheIfNeededAsync>b__0 () [0x00050] in C:\projects\ffimageloading\source\FFImageLoading.Common\Cache\DownloadCache.cs:58 09-23 14:14:45.660 I/mono-stdout(24184): at FFImageLoading.Retry.DoAsync[T] (System.Func1[TResult] action, System.TimeSpan retryInterval, System.Int32 retryCount, System.Action onRetry) [0x00047] in C:\projects\ffimageloading\source\FFImageLoading.Common\Helpers\Retry.cs:19 <---

mzhukovs avatar Sep 23 '19 06:09 mzhukovs

I keep getting this Exception as well, no idea what the cause is... works fine on iOS and UWP, but on Android it throws that exception... is it because the HttpClient implentation selected for the Android project is the native Android one and not System.Net.HttpClient? ...

@mzhukovs I tried it with any combination of the Android HttpClient implementation. But I also getting a slightly different issue if I don’t use the FFImageLoading nuget. But happens also at the time the code tries to load a image.

Genfood avatar Sep 23 '19 06:09 Genfood

https://github.com/xamarin/Xamarin.Forms/issues/7248

Is this probably related to our problem seems to be fixed in 4.2.0 SR2 from last week.

I also think that’s the error I got if I tried it without FFImageLoading

Genfood avatar Sep 23 '19 06:09 Genfood

In described scenario DownloadCache.DownloadAsync(...) method throws unhandled DownloadHeadersTimeoutException.

The bug can be reproduced when HttpHeadersTimeout configuration property has value 0.

My workaround:

  1. Implement CustomDownloadCache 
public class CustomDownloadCache : DownloadCache
{
    public CustomDownloadCache(Configuration configuration) : base(configuration)
    {
    }

    protected override async Task<byte[]> DownloadAsync(string url, CancellationToken token,
        HttpClient client, TaskParameter parameters, DownloadInformation downloadInformation)
    {
        try
        {
            return await base.DownloadAsync(url, token, client, parameters, downloadInformation);
        }
        catch (Exception e) when (e is DownloadHeadersTimeoutException ex)
        {
            throw new System.OperationCanceledException("Download headers timeout", ex);
        }
    }
}
  1. Initialize ImageService with custom configuration
var config = new Configuration();
config.DownloadCache = new CustomDownloadCache(config);
ImageService.Instance.Initialize(config);

dminta avatar May 18 '20 19:05 dminta

I believe that this may have something to do with this mono issue https://github.com/mono/mono/issues/15462 I created a custom download cache with the code from this repo so I could step through it and this was the error that was being thrown and then converted to the other Header or Read Timeout error.

However the above error seems only to be triggered after a request is being cancelled which may explain why the ObjectDisposed error is being handled in this way. So I think there may still be some problem with the FFImageLoader code somewhere.

GZidar avatar May 21 '20 07:05 GZidar

In described scenario DownloadCache.DownloadAsync(...) method throws unhandled DownloadHeadersTimeoutException.

The bug can be reproduced when HttpHeadersTimeout configuration property has value 0.

My workaround:

  1. Implement CustomDownloadCache 
public class CustomDownloadCache : DownloadCache
{
    public CustomDownloadCache(Configuration configuration) : base(configuration)
    {
    }

    protected override async Task<byte[]> DownloadAsync(string url, CancellationToken token,
        HttpClient client, TaskParameter parameters, DownloadInformation downloadInformation)
    {
        try
        {
            return await base.DownloadAsync(url, token, client, parameters, downloadInformation);
        }
        catch (Exception e) when (e is DownloadHeadersTimeoutException ex)
        {
            throw new System.OperationCanceledException("Download headers timeout", ex);
        }
    }
}
  1. Initialize ImageService with custom configuration
var config = new Configuration();
config.DownloadCache = new CustomDownloadCache(config);
ImageService.Instance.Initialize(config);

Thx for sharing

Phantom-KNA avatar Jul 20 '22 13:07 Phantom-KNA