liangyepianzhou commented on code in PR #20948:
URL: https://github.com/apache/pulsar/pull/20948#discussion_r1304480147
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/MessageDeduplication.java:
##########
@@ -337,12 +338,23 @@ public MessageDupStatus isDuplicate(PublishContext
publishContext, ByteBuf heade
publishContext.setOriginalHighestSequenceId(highestSequenceId);
headersAndPayload.readerIndex(readerIndex);
}
-
+ long chunkID = 0;
+ if (publishContext.isChunked()) {
+ if (md == null) {
+ headersAndPayload.markReaderIndex();
+ md = Commands.parseMessageMetadata(headersAndPayload);
+ headersAndPayload.resetReaderIndex();
+ }
+ chunkID = md.getChunkId();
+ }
// Synchronize the get() and subsequent put() on the map. This would
only be relevant if the producer
// disconnects and re-connects very quickly. At that point the call
can be coming from a different thread
synchronized (highestSequencedPushed) {
Long lastSequenceIdPushed =
highestSequencedPushed.get(producerName);
- if (lastSequenceIdPushed != null && sequenceId <=
lastSequenceIdPushed) {
+ // All chunks of a message use the same message metadata and
sequence ID,
+ // so it's expected for sequenceId == lastSequenceIdPushed when
the chunk ID > 0.
+ if (lastSequenceIdPushed != null && (chunkID > 0 ? sequenceId <
lastSequenceIdPushed
Review Comment:
Sure, of course.
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