Azure服务总线不断抛出MessageLockLostException

我一直在 MessageLockLostExceptions

• 我正在使用Microsoft.Azure.ServiceBus 3.2.0和.NET Core 2.1。
• 我和你有一个队列 LockDuration 设置为30秒,已包含许多要处理的消息。
• 我从中获取了接收教程代码的基本信息 https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-dotnet-get-started-with-queues#receive-messages-from-the-queue ,效果很好。

现在,我想模拟一个运行时间稍长的消息处理任务(但仍然在 锁定持续时间 )加入 Task.Delay(10_000) . 但后来我得到了一份工作 MessageLockLostException 确切地说,每4条信息。

即使我设置了 MaxAutoRenewDuration = TimeSpan.FromDays(30) 和 PrefetchCount = 0

这是消息处理方法,我稍微更改了它,以打印出剩余的锁定持续时间:

    private static async Task processMessagesAsync(Message message, CancellationToken token)
    {
        Console.Write($"Received message: {message.SystemProperties.SequenceNumber}. Remaining lock duration: {message.SystemProperties.LockedUntilUtc - DateTime.UtcNow}");
        await Task.Delay(10000);
        await queueClient.CompleteAsync(message.SystemProperties.LockToken);
        Console.WriteLine(" - Complete!");
    }

样本输出:

======================================================
Press ENTER key to exit after receiving all the messages.
======================================================
Received message: 3659174697238584. Remaining lock duration: 00:00:30.8269132 - Complete!
Received message: 19421773393035331. Remaining lock duration: 00:00:20.5271654 - Complete!
Received message: 11540474045136941. Remaining lock duration: 00:00:10.3372697 - Complete!
Received message: 15762598695796784. Remaining lock duration: 00:00:00.1776760
Message handler encountered an exception     Microsoft.Azure.ServiceBus.MessageLockLostException: The lock supplied is invalid. Either the lock expired, or the message has already been removed from the queue. Reference:2c6caac3-e607-4130-a522-f75e4636e130, TrackingId:3ff82738-664d-4aca-b55f-ba3900f1c640_B17, SystemTracker:ocgtesting:queue:workflow~63, Timestamp:2018-12-12T17:01:59
at Microsoft.Azure.ServiceBus.Core.MessageReceiver.OnRenewLockAsync(String lockToken) in C:\source\azure-service-bus-dotnet\src\Microsoft.Azure.ServiceBus\Core\MessageReceiver.cs:line 1260
at Microsoft.Azure.ServiceBus.Core.MessageReceiver.<>c__DisplayClass74_0.<<RenewLockAsync>b__0>d.MoveNext() in C:\source\azure-service-bus-dotnet\src\Microsoft.Azure.ServiceBus\Core\MessageReceiver.cs:line 771
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.Azure.ServiceBus.RetryPolicy.RunOperation(Func`1 operation, TimeSpan operationTimeout) in C:\source\azure-service-bus-dotnet\src\Microsoft.Azure.ServiceBus\RetryPolicy.cs:line 83
at Microsoft.Azure.ServiceBus.RetryPolicy.RunOperation(Func`1 operation, TimeSpan operationTimeout) in C:\source\azure-service-bus-dotnet\src\Microsoft.Azure.ServiceBus\RetryPolicy.cs:line 105
at Microsoft.Azure.ServiceBus.Core.MessageReceiver.RenewLockAsync(String lockToken) in C:\source\azure-service-bus-dotnet\src\Microsoft.Azure.ServiceBus\Core\MessageReceiver.cs:line 773
at Microsoft.Azure.ServiceBus.Core.MessageReceiver.RenewLockAsync(Message message) in C:\source\azure-service-bus-dotnet\src\Microsoft.Azure.ServiceBus\Core\MessageReceiver.cs:line 742
at Microsoft.Azure.ServiceBus.MessageReceivePump.RenewMessageLockTask(Message message, CancellationToken renewLockCancellationToken) in C:\source\azure-service-bus-dotnet\src\Microsoft.Azure.ServiceBus\MessageReceivePump.cs:line 248.

完整代码如下: https://pastebin.com/sFGBgE0s