lucasbru commented on code in PR #22213:
URL: https://github.com/apache/kafka/pull/22213#discussion_r3357855758
##########
group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupMetadataManager.java:
##########
@@ -8961,9 +8983,12 @@ private Map<String, String>
streamsGroupAssignmentConfigs(String groupId) {
Optional<GroupConfig> groupConfig =
groupConfigManager.groupConfig(groupId);
final Integer numStandbyReplicas =
groupConfig.flatMap(GroupConfig::streamsNumStandbyReplicas)
.orElse(config.streamsGroupNumStandbyReplicas());
- return new TreeMap<>(Map.of(
- "num.standby.replicas", numStandbyReplicas.toString()
- ));
+ final List<String> rackAwareAssignmentTags =
groupConfig.flatMap(GroupConfig::streamsRackAwareAssignmentTags)
+ .orElse(config.streamsGroupRackAwareAssignmentTags());
+ Map<String, String> configs = new TreeMap<>();
+ configs.put("num.standby.replicas", numStandbyReplicas.toString());
+ configs.put("rack.aware.assignment.tags", String.join(",",
rackAwareAssignmentTags));
+ return configs;
Review Comment:
Yeah, I think all new configs need a default value, and we need to remove
any configs with default-values from this map.
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