Kafka Stream:正常关闭

本文介绍了Kafka Stream:正常关闭的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

如果我们在后台启动KafkaStream应用程序(例如Linux)，是否有一种方法可以从外部向应用程序发出信号，从而启动正常关机?

If we start the KafkaStream app in the background (say Linux), is there a way to signal from external, to the app, that can initiate the graceful shutdown?

推荐答案

如文档中所述( https://kafka.apache.org/11/documentation/streams/tutorial )，建议注册一个调用KafkaStreams#close()的关闭挂钩以进行干净关闭:

As describe in the docs (https://kafka.apache.org/11/documentation/streams/tutorial), it's recommended to register a shutdown hook that calls KafkaStreams#close() for a clean shutdown:

final CountDownLatch latch = new CountDownLatch(1);

// attach shutdown handler to catch control-c
Runtime.getRuntime().addShutdownHook(new Thread("streams-shutdown-hook") {
    @Override
    public void run() {
        streams.close();
        latch.countDown();
    }
});

try {
    streams.start();
    latch.await();
} catch (Throwable e) {
    System.exit(1);
}
System.exit(0);

这篇关于Kafka Stream:正常关闭的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！