Java org.apache.kafka.streams.examples.wordcount.WordCountDemo不终止

我已经启动了这个脚本，它还没有结束

sudo ./bin/kafka-run-class.sh org.apache.kafka.streams.examples.wordcount.WordCountDemo

结果如下：

[cloudera@quickstart kafka_2.12-2.4.1]$ sudo ./bin/kafka-run-class.sh org.apache.kafka.streams.examples.wordcount.WordCountDemo
[2020-04-14 13:26:36,153] WARN The configuration 'admin.retries' was supplied but isn't a known config. (org.apache.kafka.clients.consumer.ConsumerConfig)
[2020-04-14 13:26:36,165] WARN The configuration 'admin.retry.backoff.ms' was supplied but isn't a known config. (org.apache.kafka.clients.consumer.ConsumerConfig)

它没有结束

sudo ./bin/kafka-run-class.sh org.apache.kafka.streams.examples.wordcount.WordCountDemo

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有什么解决方案吗？

这是的预期行为，您需要按ctrl-c终止该过程

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如果希望演示在5秒后停止，可以使用5秒后终止的演示的：

// usually the stream application would be running forever,
// in this example we just let it run for some time and stop since the input data is finite.
Thread.sleep(5000L);