zhuhai1221 opened a new issue, #23999: URL: https://github.com/apache/pulsar/issues/23999
### 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 3.0.9 ### Minimal reproduce step Exact steps to reproduce aren't yet confirmed. send messages Producer<String> producer = client.newProducer(Schema.STRING) .topic("test") .batcherBuilder(BatcherBuilder.KEY_BASED) .blockIfQueueFull(true) .sendTimeout(3, TimeUnit.SECONDS) .create(); for (int j = 0; j < 2000000; j++) { producer.newMessage() .key("test") .value("test") .sendAsync(); if (j % 2 == 0) { producer.flush(); } } producer.close（） consume messages consumer = client.newConsumer(Schema.STRING) .topic("test") .receiverQueueSize(1000) .batchReceivePolicy(BatchReceivePolicy.builder() .maxNumMessages(1000) .timeout(100, TimeUnit.MILLISECONDS) .build()) .subscriptionName("Key-Shared") .subscriptionType(SubscriptionType.Key_Shared) .subscriptionInitialPosition(SubscriptionInitialPosition.Earliest) .subscribe(); while (true) { Messages<String> messages = consumer.batchReceive(); log.info("接收到消息数量：" + messages.size()); Thread.sleep(3000); consumer.acknowledge(messages); } ### What did you expect to see? Consume all messages in the topic ### What did you see instead? Sometimes there is a backlog of messages, but you cannot continue to consume them. ### 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]
