sdvdxl opened a new issue, #22759: URL: https://github.com/apache/pulsar/issues/22759
### Search before asking - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Read release policy - [X] I understand that unsupported versions don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker. ### Version server: pulsar-3.2.2 standalone client: java-client 3.2.3 ### Minimal reproduce step ```java package top.todu.leaning.pulsar.sample; import cn.hutool.core.date.DateTime; import java.util.concurrent.TimeUnit; import org.apache.pulsar.client.api.*; /** * @author du 2024/5/20 14:48 */ public class PulsarSample { private static PulsarClient pulsarClient; private static String host = "pulsar://10.10.81.28:6650"; private static String topic = "data_sync_queue_test"; static Consumer<byte[]> consumer; public static void main(String[] args) throws Exception { pulsarClient = PulsarClient.builder().serviceUrl(host).build(); testConsumer(); testProducer(); System.out.println("-=-------"); TimeUnit.SECONDS.sleep(10); consumer.close(); pulsarClient.close(); } private static void testProducer() throws PulsarClientException { Producer<byte[]> producer = pulsarClient .newProducer() .topic(topic) .messageRoutingMode(MessageRoutingMode.SinglePartition) .create(); for (int i = 0; i < 5; i++) { String msg = i + " Hello, Pulsar! " + DateTime.now(); System.out.println("send msg： " + msg); producer.newMessage().value(msg.getBytes()).key("const").send(); } producer.close(); } private static void testConsumer() throws PulsarClientException { consumer = pulsarClient .newConsumer() .subscriptionName("data_sync_queue_test") .topic(topic) .subscriptionInitialPosition(SubscriptionInitialPosition.Earliest) .subscriptionType(SubscriptionType.Key_Shared) .messageListener( new MessageListener<byte[]>() { @Override public void received(Consumer<byte[]> consumer, Message<byte[]> msg) { System.out.println("Received message: " + new String(msg.getData())); try { consumer.acknowledge(msg); } catch (PulsarClientException e) { throw new RuntimeException(e); } } }) .subscribe(); } } ``` ### What did you expect to see? message should receive only once ### What did you see instead? if defined `static Consumer<byte[]> consumer;`, restart application, message will receive more than once. if delete the field, it is good. ### Anything else? _No response_ ### Are you willing to submit a PR? - [ ] I'm willing to submit a PR! -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
