kafka producer api error线程主kafka.common.FailedToSendMessageException中的异常

Question

ERROR Failed to send requests for topics xyz with correlation ids in [0,12] (kafka.producer.async.DefaultEventHandler:97)
Exception in thread "main" kafka.common.FailedToSendMessageException: Failed to send messages after 3 tries.
    at kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:91)
    at kafka.producer.Producer.send(Producer.scala:77)
    at kafka.javaapi.producer.Producer.send(Producer.scala:33)
    at kafkaprod.HelloKafkaProducer.main(HelloKafkaProducer.java:26)

我收到所有生产者api程序的错误，我试图解决它，但我无法找到问题所在。

请帮帮我。

提前致谢。