showuon commented on code in PR #12748:
URL: https://github.com/apache/kafka/pull/12748#discussion_r1035598438
##########
clients/src/test/java/org/apache/kafka/clients/consumer/StickyAssignorTest.java:
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@@ -272,6 +284,73 @@ public void testSchemaBackwardCompatibility() {
assertTrue(isFullyBalanced(assignment));
}
+ @Test
+ public void testMemberDataWithInconsistentData() {
+ Map<String, Integer> partitionsPerTopic = new HashMap<>();
+ partitionsPerTopic.put(topic, 2);
+ List<TopicPartition> ownedPartitionsInUserdata = partitions(tp1);
+ List<TopicPartition> ownedPartitionsInSubscription = partitions(tp0);
+
+ assignor.onAssignment(new
ConsumerPartitionAssignor.Assignment(ownedPartitionsInUserdata), new
ConsumerGroupMetadata(groupId, generationId, consumer1, Optional.empty()));
+ ByteBuffer userDataWithHigherGenerationId =
assignor.subscriptionUserData(new HashSet<>(topics(topic)));
+ // The owned partitions and generation id are provided in user data
and different owned partition is provided in subscription without generation id
+ // If subscription provides no generation id, we'll honor the
generation id in userData and owned partitions in subscription
Review Comment:
You're right! Updated.
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