bbejeck commented on code in PR #19691:
URL: https://github.com/apache/kafka/pull/19691#discussion_r2085379528
##########
group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupMetadataManager.java:
##########
@@ -1983,8 +1984,16 @@ private CoordinatorResult<StreamsGroupHeartbeatResult,
CoordinatorRecord> stream
StreamsGroupHeartbeatResponseData response = new
StreamsGroupHeartbeatResponseData()
.setMemberId(updatedMember.memberId())
.setMemberEpoch(updatedMember.memberEpoch())
- .setHeartbeatIntervalMs(streamsGroupHeartbeatIntervalMs(groupId))
-
.setPartitionsByUserEndpoint(maybeBuildEndpointToPartitions(group));
+ .setHeartbeatIntervalMs(streamsGroupHeartbeatIntervalMs(groupId));
+
+ if (group.endpointInformationEpoch() > memberEndpointEpochInRequest) {
Review Comment:
This is the fix, the group endpoint epoch is greater than the member's
endpoint epoch indicating there's been a change and an update endpoint metadata
is required.
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