我在常规控制台应用程序中有以下简单代码,并且希望(某些)命令并行使用。我认为UseConcurrencyLimit
会设置并发线程的数量。我所看到的是,RabbitMQ确实有10条未经处理的消息,但消费者会连续消耗它们,每个console.writeline之间暂停一秒钟。我必须遗漏一些明显的东西,但我不明白。
public static class EventHandler
{
public static void Run()
{
var personQueueName = "RabbitMqPoc.Person";
var busControl = Bus.Factory.CreateUsingRabbitMq(cfg =>
{
cfg.UseConcurrencyLimit(10);
var host = cfg.Host(new Uri("rabbitmq://localhost"), h =>
{
h.Username("guest");
h.Password("guest");
});
cfg.ReceiveEndpoint(host, personQueueName, e =>
{
e.UseConcurrencyLimit(10);
e.PrefetchCount = 10;
e.Consumer<PersonConsumer>();
});
});
var personSendEndpoint = busControl.GetSendEndpoint(new Uri($"rabbitmq://localhost/{personQueueName}")).Result;
busControl.Start();
foreach (var x in Enumerable.Range(1, 20))
{
personSendEndpoint.Send(new PersonUpdated() { Name = "Mina Ives", Key = Guid.NewGuid() });
}
Console.ReadLine();
busControl.Stop();
}
}
internal class PersonConsumer : IConsumer<IPersonUpdated>
{
public async Task Consume(ConsumeContext<IPersonUpdated> context)
{
Thread.Sleep(1000);
Console.WriteLine($"Updated {context.Message.Name}");
}
}
答案 0 :(得分:1)
将Thread.Sleep(1000);
更改为await Task.Delay(1000);
可以解决您所看到的问题。
Thread.Sleep出于某种原因对TPL造成了严重破坏。