nodece commented on issue #12059:
URL: https://github.com/apache/pulsar/issues/12059#issuecomment-922236224
@yakir-Yang I tried to run the code provided by you, it works fine.
Set up the environment:
- JAVA: 11
- Pulsar: 2.8.0
- Pulsar-client: 2.8.1
```
docker run -it \
-p 6650:6650 \
-p 8080:8080 --name pulsar-issues-test \
apachepulsar/pulsar:2.8.0 \
bin/pulsar standalone
```
The code so like:
```
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.concurrent.TimeUnit;
import org.apache.pulsar.client.admin.PulsarAdmin;
import org.apache.pulsar.client.api.Consumer;
import org.apache.pulsar.client.api.KeySharedPolicy;
import org.apache.pulsar.client.api.Message;
import org.apache.pulsar.client.api.MessageId;
import org.apache.pulsar.client.api.Producer;
import org.apache.pulsar.client.api.PulsarClient;
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.api.SubscriptionMode;
import org.apache.pulsar.client.api.SubscriptionType;
public class Main {
public static void main(String[] args) throws Exception {
String url = "http://localhost:8080";;
String topic = "persistent://public/default/issues-12059";
PulsarAdmin admin =
PulsarAdmin.builder().serviceHttpUrl(url).build();
PulsarClient client = PulsarClient.builder().serviceUrl(url).build();
Producer<byte[]> producer =
client.newProducer().topic(topic).create();
Thread producerThread = new Thread(() -> {
while (true) {
try {
producer.send("hello-pulsar".getBytes(StandardCharsets.UTF_8));
Thread.sleep(5 * 1000);
} catch (PulsarClientException | InterruptedException e) {
e.printStackTrace();
}
}
});
producerThread.start();
Consumer<byte[]> consumer = client.newConsumer()
.topic(topic)
.consumerName("javatest")
.subscriptionName("kk-subscription")
.ackTimeout(10, TimeUnit.SECONDS)
.subscriptionType(SubscriptionType.Key_Shared)
.keySharedPolicy(KeySharedPolicy.autoSplitHashRange())
.subscriptionMode(SubscriptionMode.NonDurable)
.subscribe();
int n = 0;
while (true) {
Message<byte[]> message = consumer.receive();
if (message == null) {
continue;
}
MessageId msgId;
switch (n % 4) {
case 0:
msgId = message.getMessageId();
System.out.println("create MessageId from
message.getMessageId()");
break;
case 1:
System.out.println(
"create MessageId from
MessageId.fromByteArray(message.getMessageId().toByteArray())");
msgId =
MessageId.fromByteArray(message.getMessageId().toByteArray());
break;
case 2:
System.out.println(
"create MessageId from
MessageId.fromByteArrayWithTopic(message.getMessageId().toByteArray(), topic)");
msgId =
MessageId.fromByteArrayWithTopic(message.getMessageId().toByteArray(), topic);
break;
case 3:
System.out.println(
"create MessageId from
MessageId.fromByteArrayWithTopic(Base64.getDecoder().decode(messageId),
topic)");
String messageId =
Base64.getEncoder().encodeToString(message.getMessageId().toByteArray());
msgId =
MessageId.fromByteArrayWithTopic(Base64.getDecoder().decode(messageId), topic);
break;
default:
throw new IllegalStateException("Unexpected value: " +
n);
}
consumer.acknowledgeAsync(msgId);
Thread.sleep(2 * 1000);
admin.topics().getStats(topic).getSubscriptions().forEach((key,
value) -> {
long unackedMessages = value.getUnackedMessages();
System.out.println("subscription: " + key + ",
unackedMessages: " + unackedMessages);
if (unackedMessages != 0) {
System.out.println("expect value.getUnackedMessages() is
0, but got " + unackedMessages);
System.exit(1);
}
});
n++;
}
}
}
```
If you use other versions of pulsar, please tell me.
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