codelipenghui commented on code in PR #20128:
URL: https://github.com/apache/pulsar/pull/20128#discussion_r1172025749
##########
pulsar-broker/src/test/java/org/apache/pulsar/broker/service/ReplicatorTest.java:
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@@ -1756,4 +1763,93 @@ public void testReplicatorProducerNotExceed() throws
Exception {
Assert.assertThrows(PulsarClientException.ProducerBusyException.class,
() -> new MessageProducer(url2, dest2));
}
+
+ @Test
+ public void testDiscontinuousMessages() throws Exception {
Review Comment:
> This scenario is hard to fix. Because there is no clear marker of which
in-flight reads need to be discarded after step-2. I think I should learn how
the connector handle messages.
But we will not get an error if the message is duplicated, right? The broker
skips the duplicated sends and returns (-1, -1) as the message ID. We are safe
to publish messages 1 to 5 again.
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