heesung-sn commented on code in PR #20948:
URL: https://github.com/apache/pulsar/pull/20948#discussion_r1305063620
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pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java:
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@@ -1449,6 +1450,24 @@ private ByteBuf processMessageChunk(ByteBuf
compressedPayload, MessageMetadata m
// discard message if chunk is out-of-order
if (chunkedMsgCtx == null || chunkedMsgCtx.chunkedMsgBuffer == null
|| msgMetadata.getChunkId() !=
(chunkedMsgCtx.lastChunkedMessageId + 1)) {
+ // Filter duplicated chunks instead of discard it. (Only do this
when exist duplication in a chunk message)
+ // For example:
+ // Chunk-1 sequence ID: 0, chunk ID: 0
+ // Chunk-2 sequence ID: 0, chunk ID: 0
+ // Chunk-3 sequence ID: 0, chunk ID: 1
+ if (chunkedMsgCtx != null && msgMetadata.getChunkId() <=
chunkedMsgCtx.lastChunkedMessageId) {
+ log.warn("[{}] Receive a repeated chunk messageId {},
last-chunk-id{}, chunkId = {}",
+ msgMetadata.getProducerName(),
chunkedMsgCtx.lastChunkedMessageId, msgId, msgMetadata.getChunkId());
+ compressedPayload.release();
+ increaseAvailablePermits(cnx);
+ boolean repeatedlyReceived =
Arrays.stream(chunkedMsgCtx.chunkedMessageIds)
+ .anyMatch(messageId1 -> messageId1 != null &&
messageId1.ledgerId == messageId.getLedgerId()
Review Comment:
Again, do we need to check all chunkedMessageIds? Can't we check the last
one? `chunkedMsgCtx.chunkedMessageIds[lastChunkedMessageId]`?
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