sudeshwasnik commented on code in PR #12462:
URL: https://github.com/apache/kafka/pull/12462#discussion_r940920502
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clients/src/main/java/org/apache/kafka/clients/producer/internals/RecordAccumulator.java:
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@@ -273,26 +273,29 @@ public RecordAppendResult append(String topic,
// check if we have an in-progress batch
Deque<ProducerBatch> dq =
topicInfo.batches.computeIfAbsent(effectivePartition, k -> new ArrayDeque<>());
+ RecordAppendResult appendResult;
synchronized (dq) {
// After taking the lock, validate that the partition
hasn't changed and retry.
if
(topicInfo.builtInPartitioner.isPartitionChanged(partitionInfo)) {
log.trace("Partition {} for topic {} switched by a
concurrent append, retrying",
partitionInfo.partition(), topic);
continue;
}
- RecordAppendResult appendResult = tryAppend(timestamp,
key, value, headers, callbacks, dq, nowMs);
- if (appendResult != null) {
+ appendResult = tryAppend(timestamp, key, value, headers,
callbacks, dq, nowMs);
+ if (appendResult != null && !appendResult.newBatchCreated)
{
Review Comment:
let me try to add a unit test just in case... but iiuc the PR shouldn't
change existing behaviour wrt `builtInPartitioner`
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