我使用.NETCore2.2上的backgroundservice实现了一个kafka消费者作为控制台应用程序。我使用confluent kafka dotnet v1.0.1.1作为apache kafka的客户端。我不太清楚如何处理每条信息。
由于处理每条消息可能需要一些时间（最多24小时），因此我将为每条消息启动一个新任务，这样就不会阻止消费者使用新消息。我认为如果我有太多的信息，每次创建一个新任务是不正确的。那么，处理每条信息的正确方法是什么呢？是否可以为每条消息创建某种动态后台服务？
如果已经在处理一条消息，但应用程序崩溃或发生了重新平衡，那么我最终会多次使用和处理同一条消息。我是否应该自动提交偏移量（或者在它被使用之后立即提交），并将消息（或任务）的状态存储在某个地方，比如数据库中？
我知道有壁炉，但我不确定是否需要用它。如果我目前的做法完全错误，请给我一些建议。
以下是consumerservice的实现：

public class ConsumerService : BackgroundService
{
    private readonly IConfiguration _config;
    private readonly IElasticLogger _logger;
    private readonly ConsumerConfig _consumerConfig;
    private readonly string[] _topics;
    private readonly double _maxNumAttempts;
    private readonly double _retryIntervalInSec;

    public ConsumerService(IConfiguration config, IElasticLogger logger)
    {
        _config = config;
        _logger = logger;
        _consumerConfig = new ConsumerConfig
        {
            BootstrapServers = _config.GetValue<string>("Kafka:BootstrapServers"),
            GroupId = _config.GetValue<string>("Kafka:GroupId"),
            EnableAutoCommit = _config.GetValue<bool>("Kafka:Consumer:EnableAutoCommit"),
            AutoOffsetReset = (AutoOffsetReset)_config.GetValue<int>("Kafka:Consumer:AutoOffsetReset")
        };
        _topics = _config.GetValue<string>("Kafka:Consumer:Topics").Split(',');
        _maxNumAttempts = _config.GetValue<double>("App:MaxNumAttempts");
        _retryIntervalInSec = _config.GetValue<double>("App:RetryIntervalInSec");
    }

    protected override Task ExecuteAsync(CancellationToken stoppingToken)
    {
        Console.WriteLine("!!! CONSUMER STARTED !!!\n");

        // Starting a new Task here because Consume() method is synchronous
        var task = Task.Run(() => ProcessQueue(stoppingToken), stoppingToken);

        return task;
    }

    private void ProcessQueue(CancellationToken stoppingToken)
    {
        using (var consumer = new ConsumerBuilder<Ignore, Request>(_consumerConfig).SetValueDeserializer(new MessageDeserializer()).Build())
        {
            consumer.Subscribe(_topics);

            try
            {
                while (!stoppingToken.IsCancellationRequested)
                {
                    try
                    {
                        var consumeResult = consumer.Consume(stoppingToken);

                        // Don't want to block consume loop, so starting new Task for each message  
                        Task.Run(async () =>
                        {
                            var currentNumAttempts = 0;
                            var committed = false;

                            var response = new Response();

                            while (currentNumAttempts < _maxNumAttempts)
                            {
                                currentNumAttempts++;

                                // SendDataAsync is a method that sends http request to some end-points
                                response = await Helper.SendDataAsync(consumeResult.Value, _config, _logger);

                                if (response != null && response.Code >= 0)
                                {
                                    try
                                    {
                                        consumer.Commit(consumeResult);
                                        committed = true;

                                        break;
                                    }
                                    catch (KafkaException ex)
                                    {
                                        // log
                                    }
                                }
                                else
                                {
                                    // log
                                }

                                if (currentNumAttempts < _maxNumAttempts)
                                {
                                    // Delay between tries
                                    await Task.Delay(TimeSpan.FromSeconds(_retryIntervalInSec));
                                }
                            }

                            if (!committed)
                            {
                                try
                                {
                                    consumer.Commit(consumeResult);
                                }
                                catch (KafkaException ex)
                                {
                                    // log
                                }
                            }
                        }, stoppingToken);
                    }
                    catch (ConsumeException ex)
                    {
                        // log
                    }
                }
            }
            catch (OperationCanceledException ex)
            {
                // log
                consumer.Close();
            }
        }
    }
}