zymap commented on issue #9557:
URL: https://github.com/apache/pulsar/issues/9557#issuecomment-789602819
@Lanayx I am trying to reproduce this issue, I am using the following case
to test but everything looks good. Could you please take a look at the test
case?
```
@Test
public void testSeekBatchMessageWithSerializedMessageId() throws
PulsarClientException, InterruptedException {
final String topic = "public/default/seek-with-batch-message-" +
UUID.randomUUID();
final String messagePrefix = "message";
@Cleanup
PulsarClient pulsarClient =
PulsarClient.builder().serviceUrl(lookupUrl.toString()).build();
@Cleanup
Producer<String> producer = pulsarClient.newProducer(Schema.STRING)
.topic(topic)
.enableBatching(true)
.batchingMaxMessages(20)
.create();
@Cleanup
Consumer<String> consumer = pulsarClient.newConsumer(Schema.STRING)
.topic(topic)
.subscriptionName("seek-batch")
.subscribe();
ArrayList<String> messages = new ArrayList<>();
// send messages and batch the messages
CountDownLatch latch = new CountDownLatch(10);
IntStream.range(0, 10)
.forEach(i -> {
String msg = String.format("%s-%d", messagePrefix, i);
producer.sendAsync(msg);
messages.add(msg);
latch.countDown();
});
latch.await();
producer.flush();
Message<String> msg1 = consumer.receive();
assertEquals(msg1.getValue(), messages.get(0));
Message<String> msg2 = consumer.receive();
assertEquals(msg2.getValue(), messages.get(1));
Message<String> msg3 = consumer.receive();
assertEquals(msg3.getValue(), messages.get(2));
Message<String> msg4 = consumer.receive();
assertEquals(msg4.getValue(), messages.get(3));
consumer.seek(msg3.getMessageId());
Message<String> seekMsg4 = consumer.receive();
assertEquals(seekMsg4.getValue(), messages.get(3));
byte[] msg3IdBytes = msg3.getMessageId().toByteArray();
MessageId msg3Id = null;
try {
msg3Id = MessageId.fromByteArray(msg3IdBytes);
} catch (IOException e) {
fail("Failed parse message id from byte array");
}
consumer.seek(msg3Id);
seekMsg4 = consumer.receive();
assertEquals(seekMsg4.getValue(), messages.get(3));
}
```
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