heesung-sn commented on code in PR #20948:
URL: https://github.com/apache/pulsar/pull/20948#discussion_r1286136044
##########
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ProducerImpl.java:
##########
@@ -594,9 +595,9 @@ private void updateMessageMetadata(final MessageMetadata
msgMetadata, final int
}
}
- private long updateMessageMetadataSequenceId(final MessageMetadata
msgMetadata) {
+ private long updateMessageMetadataSequenceId(final MessageMetadata
msgMetadata, boolean isChunk) {
final long sequenceId;
- if (!msgMetadata.hasSequenceId()) {
+ if (!msgMetadata.hasSequenceId() || isChunk) {
Review Comment:
It seems like we are overriding cx provided sequence id here, if chunked.
Are we allowed to do this?
##########
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ProducerImpl.java:
##########
@@ -553,9 +555,8 @@ public void sendAsync(Message<?> message, SendCallback
callback) {
synchronized (this) {
// Update the message metadata before computing the
payload chunk size
// to avoid a large message cannot be split into chunks.
- final long sequenceId =
updateMessageMetadataSequenceId(msgMetadata);
- String uuid = totalChunks > 1 ? String.format("%s-%d",
producerName, sequenceId) : null;
-
+ final long sequenceId =
updateMessageMetadataSequenceId(msgMetadata, chunkId > 0);
+ String uuid = totalChunks > 1 ? String.format("%s-%s",
producerName, chunkUUid) : null;
Review Comment:
- Why do we need to use uuid here? isn't `String.format("%s-%d",
producerName, sequenceId)` unique already for each chunk?
- do we need to worry about any uuid collision?
##########
pulsar-broker/src/test/java/org/apache/pulsar/client/impl/MessageChunkingSharedTest.java:
##########
@@ -211,6 +212,32 @@ private static String createChunkedMessage(int numChunks) {
return Schema.STRING.decode(payload);
}
Review Comment:
Add a case when user provides sequence ids and how the messages are chunked
and deduped.
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