我尝试使用Confluent Kafka在python中编写一个Kafka消费者。我可以获得所有新消息，但如果我杀死并重新启动消费者，则不会获得任何旧消息

def confluent_kafka_consumer(app):
    with app.app_context():
        import config
    app.logger.info('Running Confluent Kafka consumer')

    consumer_config = {
        'bootstrap.servers': F'{config.Config.KAFKA_BROKER_URL}:{config.Config.KAFKA_BROKER_PORT}',
        'group.id': 'myGroupId',
        'auto.offset.reset': 'earliest',
        'enable.auto.commit': 'false',
        'max.poll.interval.ms': '86400000'
    }

    try:

        consumer = Consumer(consumer_config)
        consumer.subscribe(['updates'])
        
        while True:

            # read single message at a time
            msg = consumer.poll(0)

            if msg is None:
                gevent.sleep(config.DevelopmentConfig.KAFKA_CONSUMER_THREAD_SLEEP_TIME)
                continue
            if msg.error():
                print("Error reading message : {}".format(msg.error()))
                continue
            # You can parse message and save to data base here
            callstr = msg.value().decode('utf-8')
            print(callstr)

    except Exception as ex:
        print("Kafka Exception : {}", ex)

    finally:
        print("closing consumer")
        consumer.close()

我试着把groupId设置成不同的东西，重新启动生产者，zookeper...