dajac commented on code in PR #20907:
URL: https://github.com/apache/kafka/pull/20907#discussion_r2598541341
##########
group-coordinator/src/main/java/org/apache/kafka/coordinator/group/modern/consumer/ConsumerGroup.java:
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@@ -1087,8 +1100,10 @@ void addPartitionEpochs(
partitionsOrNull = new TimelineHashMap<>(snapshotRegistry,
assignedPartitions.size());
}
for (Integer partitionId : assignedPartitions) {
- Integer prevValue = partitionsOrNull.put(partitionId,
epoch);
- if (prevValue != null) {
+ Integer prevValue = partitionsOrNull.get(partitionId);
+ if (prevValue == null || prevValue <= epoch) {
Review Comment:
We can revert this change and remove the test as this is addressed by
https://github.com/apache/kafka/pull/21107.
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