Question

我创建了一个简单的事件处理器主机，它从配置了租约管理默认选项的Azure IOT中心读取事件。
但是，即使我正在运行EventProcessorHost的单个实例，我也会定期跟踪异常：
ReceiverDisconnectedException：创建具有更高纪元的新接收器，因此具有纪元的当前接收器正在断开连接。原因：LeaseLost
客户重新获得租约并进一步处理消息。

这是EventProcessorHost的初始化

EventProcessorHost eventProcessorHost = new EventProcessorHost(hostName, eventHubName, EventHubConsumerGroup.DefaultGroupName,
            eventHubConnectionString, storageAccountConnectionString);
var options = new EventProcessorOptions();
options.ExceptionReceived += (sender, e) =>
{
    Console.WriteLine(e.Exception);
};

eventProcessorHost.PartitionManagerOptions = PartitionManagerOptions.DefaultOptions;
eventProcessorHost.RegisterEventProcessorAsync<SimpleEventProcessor>(options).Wait();

这种行为是正常的还是我需要做些什么来避免单个实例？

下面是我的EventProcessor：

public class SimpleEventProcessor : IEventProcessor
{
    Stopwatch checkpointStopWatch;

    public async Task CloseAsync(PartitionContext context, CloseReason reason)
    {
        Console.WriteLine("Processor Shutting Down. Partition '{0}', Reason: '{1}'.", context.Lease.PartitionId, reason);
        await context.CheckpointAsync();
    }

    public Task OpenAsync(PartitionContext context)
    {
        Console.WriteLine("SimpleEventProcessor initialized.  Partition: '{0}', Offset: '{1}'", context.Lease.PartitionId, context.Lease.Offset);
        this.checkpointStopWatch = new Stopwatch();
        this.checkpointStopWatch.Start();
        this.rawDataService = new RawDataService();
        return Task.FromResult<object>(null);
    }

    public async Task ProcessEventsAsync(PartitionContext context, IEnumerable<EventData> messages)
    {
        foreach (EventData eventData in messages)
        {
            string data = Encoding.UTF8.GetString(eventData.GetBytes());
            Console.WriteLine(string.Format("Message received.  Partition: '{0}', Data: '{1}'", context.Lease.PartitionId, data));
        }
    }
}

IOT Hub的EventProcessorHost单个实例中的LeaseLostException

0 个答案: