chia7712 commented on code in PR #19509:
URL: https://github.com/apache/kafka/pull/19509#discussion_r2050092192
##########
tools/src/test/java/org/apache/kafka/tools/FeatureCommandTest.java:
##########
@@ -182,6 +186,7 @@ public void testDowngradeWithReleaseVersion(ClusterInstance
cluster) {
"kraft.version was downgraded to 0.\n" +
"metadata.version was downgraded to 18.\n" +
"share.version was downgraded to 0.\n" +
+ "streams.group.version was downgraded to 0.\n" +
Review Comment:
Out of curiosity, have you consider using "streams.version" instead?
##########
group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupCoordinatorConfig.java:
##########
@@ -63,7 +63,8 @@ public class GroupCoordinatorConfig {
"The " + Group.GroupType.SHARE + " and " + Group.GroupType.STREAMS
+ " rebalance protocols are in early access and therefore must not be used in
production.";
public static final List<String>
GROUP_COORDINATOR_REBALANCE_PROTOCOLS_DEFAULT = List.of(
Group.GroupType.CLASSIC.toString(),
- Group.GroupType.CONSUMER.toString());
+ Group.GroupType.CONSUMER.toString(),
+ Group.GroupType.STREAMS.toString());
Review Comment:
If this streams feature is added by default, should we remove the following
warnings?
```java
if (protocols.contains(GroupType.STREAMS)) {
warn(s"Streams groups and the new '${GroupType.STREAMS}' rebalance
protocol are enabled. " +
"This is part of the early access of KIP-1071 and MUST NOT be used
in production.")
}
```
https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/server/KafkaConfig.scala#L386
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