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New: Retry on failed downloads of torrent and nzb files

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(cherry picked from commit bc20ef73bdd47b7cdad43d4c7d4b4bd534e49252)

Closes #3151
This commit is contained in:
Bogdan
2023-12-09 17:58:57 +02:00
parent c4e37528ee
commit 9066f8558c
5 changed files with 44 additions and 6 deletions
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src/NzbDrone.Core/Download/DownloadClientBase.cs
+36 -4
View File
@@ -1,15 +1,19 @@
using System;
using System.Collections.Generic;
using System.Net;
using System.Threading.Tasks;
using FluentValidation.Results;
using NLog;
using NzbDrone.Common.Disk;
using NzbDrone.Common.Http;
using NzbDrone.Core.Configuration;
using NzbDrone.Core.Indexers;
using NzbDrone.Core.Parser.Model;
using NzbDrone.Core.RemotePathMappings;
using NzbDrone.Core.ThingiProvider;
using NzbDrone.Core.Validation;
using Polly;
using Polly.Retry;
namespace NzbDrone.Core.Download
{
@@ -21,6 +25,37 @@ namespace NzbDrone.Core.Download
protected readonly IRemotePathMappingService _remotePathMappingService;
protected readonly Logger _logger;
protected ResiliencePipeline<HttpResponse> RetryStrategy => new ResiliencePipelineBuilder<HttpResponse>()
.AddRetry(new RetryStrategyOptions<HttpResponse>
{
ShouldHandle = static args => args.Outcome switch
{
{ Result.HasHttpServerError: true } => PredicateResult.True(),
{ Result.StatusCode: HttpStatusCode.RequestTimeout } => PredicateResult.True(),
_ => PredicateResult.False()
},
Delay = TimeSpan.FromSeconds(3),
MaxRetryAttempts = 2,
BackoffType = DelayBackoffType.Exponential,
UseJitter = true,
OnRetry = args =>
{
var exception = args.Outcome.Exception;
if (exception is not null)
{
_logger.Info(exception, "Request for {0} failed with exception '{1}'. Retrying in {2}s.", Definition.Name, exception.Message, args.RetryDelay.TotalSeconds);
}
else
{
_logger.Info("Request for {0} failed with status {1}. Retrying in {2}s.", Definition.Name, args.Outcome.Result?.StatusCode, args.RetryDelay.TotalSeconds);
}
return default;
}
})
.Build();
public abstract string Name { get; }
public Type ConfigContract => typeof(TSettings);
@@ -54,10 +89,7 @@ namespace NzbDrone.Core.Download
return GetType().Name;
}
public abstract DownloadProtocol Protocol
{
get;
}
public abstract DownloadProtocol Protocol { get; }
public abstract Task<string> Download(RemoteBook remoteBook, IIndexer indexer);
public abstract IEnumerable<DownloadClientItem> GetItems();