消费邮件时出现Kafka Consumer hange

Question

我有以下代码片段，使用了来自生产者的消息：

public class KafkaAvroExampleWithWait : MonoBehaviour
{
    ConsumeResult<string, GenericRecord> consumeResult2;
    string bootstrapServers = "localhost:9092";
    string schemaRegistryUrl = "Production163:8081";
    string topicName = "player";
    string groupName = "avro-generic-example-group123456";

    // Start is called before the first frame update
    void Start()
    {
        Debug.Log("start called");
        StartCoroutine(Main2());
    }

    IEnumerator Main2()
    {
        Debug.Log("Main Called");
        using (CachedSchemaRegistryClient schemaRegistry = new CachedSchemaRegistryClient(new SchemaRegistryConfig { SchemaRegistryUrl = schemaRegistryUrl }))
        using (IConsumer<string, GenericRecord> consumer = new ConsumerBuilder<string, GenericRecord>(new ConsumerConfig { BootstrapServers = bootstrapServers, GroupId = groupName })
                .SetKeyDeserializer(new AsyncAvroDeserializer<string>(schemaRegistry).AsSyncOverAsync())
                .SetValueDeserializer(new AsyncAvroDeserializer<GenericRecord>(schemaRegistry).AsSyncOverAsync())
                .SetErrorHandler((_, e) => Debug.Log($"Error: {e.Reason}"))
                .Build())
        {
            Debug.Log("subscribe" + this.name);
            consumer.Subscribe(topicName);

            while (true)
            {
                ConsumeResult<string, GenericRecord> consumeResult = consumer.Consume(new TimeSpan(0, 0, 1));
                yield return consumeResult;

                if (consumeResult != null)
                {
                    Debug.Log($"Key: {consumeResult.Message.Key}\nValue: {consumeResult.Value}");
                    Debug.Log(consumeResult.Value.Schema);
                    Debug.Log(consumeResult.Value.Schema["favorite_number"].GetProperty("favorite_number"));
                    Debug.Log(consumeResult.Value.Schema["favorite_number"]);

                    Avro.Field f;
                    consumeResult.Value.Schema.TryGetField("favorite_number", out f);

                    Debug.Log(consumeResult.Value["favorite_number"]);
                    Debug.Log(consumeResult.Value["name"]);

                }
                else
                {
                    Debug.Log("consumer Result is null");
                }

                yield return new WaitForSeconds(1);

            }

        }

    }

}

当我不发送任何消息时，它工作正常。但是当我从另一个生产者那里发送消息时，消费者被绞死了，什么也没发生。我调试了代码，发现它挂在了这一行：

ConsumeResult<string, GenericRecord> consumeResult = consumer.Consume(new TimeSpan(0, 0, 1));

我是Kafka的新手，也许我有任何配置问题或其他问题。