RollBack2010 opened a new issue #12098:
URL: https://github.com/apache/pulsar/issues/12098
1. Download apache-pulsar-2.8.0-bin.tar.gz
2. Execute "pulsar-daemon start standalone" to start the service
3. Producer code:
```java
@GetMapping("/base/sendMsg")
public MessageId sendMsg(String msg) throws PulsarClientException {
PulsarClient pulsarFactory = pulsarConf.pulsarFactory();
Producer<byte[]> producer1 = pulsarFactory.newProducer()
.topic("my-topic")
.create();
MessageId send = producer1.newMessage().deliverAfter(3L,
TimeUnit.MINUTES).value("Hello Pulsar!".getBytes()).send();
return send;
}
```
4. Consumer Code
```java
@Bean
public void comsumerByListener() throws PulsarClientException {
MessageListener myMessageListener = (consumer, msg) -> {
try {
System.out.println("Message received: " + new
String(msg.getData()));
consumer.acknowledge(msg);
} catch (Exception e) {
consumer.negativeAcknowledge(msg);
}
};
PulsarClient pulsarFactory = pulsarConf.pulsarFactory();
pulsarFactory.newConsumer()
.topic("my-topic")
.subscriptionName("my-subscriptionByListener")
.messageListener(myMessageListener)
.subscribe();
}
```
Sending " base/sendmsg " request, the consumer immediately got the message,
" deliverafter ( 3l, timeunit.Minutes ) " three minutes of delay doesn't work,
why?
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