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Ignore TaskCanceledExceptions during shutdown

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This commit is contained in:
Mark van Renswoude 2021-01-15 11:29:31 +01:00
parent b62475c830
commit f4bef38a9f
2 changed files with 28 additions and 7 deletions
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33
Tapeti/Connection/TapetiConsumer.cs
View File

@ -1,6 +1,7 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using Tapeti.Config;
using Tapeti.Default;
using System.Threading.Tasks;
@ -14,6 +15,7 @@ namespace Tapeti.Connection
/// </summary>
internal class TapetiConsumer : IConsumer
{
private readonly CancellationToken cancellationToken;
private readonly ITapetiConfig config;
private readonly string queueName;
private readonly List<IBinding> bindings;
@ -23,9 +25,9 @@ namespace Tapeti.Connection
private readonly IMessageSerializer messageSerializer;
/// <inheritdoc />
public TapetiConsumer(ITapetiConfig config, string queueName, IEnumerable<IBinding> bindings)
public TapetiConsumer(CancellationToken cancellationToken, ITapetiConfig config, string queueName, IEnumerable<IBinding> bindings)
{
this.cancellationToken = cancellationToken;
this.config = config;
this.queueName = queueName;
this.bindings = bindings.ToList();
@ -80,11 +82,8 @@ namespace Tapeti.Connection
var messageType = message.GetType();
var validMessageType = false;
foreach (var binding in bindings)
foreach (var binding in bindings.Where(binding => binding.Accept(messageType)))
{
if (!binding.Accept(messageType))
continue;
var consumeResult = await InvokeUsingBinding(message, messageContextData, binding);
validMessageType = true;
@ -135,6 +134,13 @@ namespace Tapeti.Connection
private void HandleException(ExceptionStrategyContext exceptionContext)
{
if (cancellationToken.IsCancellationRequested && IsTaskCanceledException(exceptionContext.Exception))
{
// The service is most likely stopping, and the connection is gone anyways.
exceptionContext.SetConsumeResult(ConsumeResult.Requeue);
return;
}
try
{
exceptionStrategy.HandleException(exceptionContext);
@ -150,6 +156,21 @@ namespace Tapeti.Connection
}
private static bool IsTaskCanceledException(Exception e)
{
switch (e)
{
case AggregateException aggregateException:
return aggregateException.InnerExceptions.Any(IsTaskCanceledException);
case TaskCanceledException _:
return true;
default:
return e.InnerException != null && IsTaskCanceledException(e.InnerException);
}
}
private struct MessageContextData
{

2
Tapeti/Connection/TapetiSubscriber.cs
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@ -138,7 +138,7 @@ namespace Tapeti.Connection
consumerTags.AddRange(await Task.WhenAll(queues.Select(async group =>
{
var queueName = group.Key;
var consumer = new TapetiConsumer(config, queueName, group);
var consumer = new TapetiConsumer(cancellationToken, config, queueName, group);
return await clientFactory().Consume(cancellationToken, queueName, consumer);
})));