brandboat commented on code in PR #21396:
URL: https://github.com/apache/kafka/pull/21396#discussion_r2777434039
##########
clients/clients-integration-tests/src/test/java/org/apache/kafka/clients/consumer/ConsumerIntegrationTest.java:
##########
@@ -335,6 +343,50 @@ public void testRackAwareAssignment(ClusterInstance
clusterInstance) throws Exec
}
}
+ @SuppressWarnings("unchecked")
+ @ClusterTest(
+ brokers = 2,
+ types = {Type.KRAFT},
+ serverProperties = {
+ @ClusterConfigProperty(key =
GroupCoordinatorConfig.OFFSETS_TOPIC_PARTITIONS_CONFIG, value = "1"),
+ @ClusterConfigProperty(key =
GroupCoordinatorConfig.GROUP_COORDINATOR_APPEND_LINGER_MS_CONFIG, value =
"3000")
+ }
+ )
+ public void
testSingleCoordinatorOwnershipAfterPartitionReassignment(ClusterInstance
clusterInstance) throws InterruptedException, ExecutionException,
TimeoutException {
+ try (var producer = clusterInstance.<byte[], byte[]>producer()) {
+ producer.send(new ProducerRecord<>("topic",
"value".getBytes(StandardCharsets.UTF_8)));
+ }
+
+ try (var admin = clusterInstance.admin()) {
+ admin.createTopics(List.of(new
NewTopic(Topic.GROUP_METADATA_TOPIC_NAME, Map.of(0, List.of(0))))).all().get();
+ }
+
+ try (var consumer =
clusterInstance.consumer(Map.of(ConsumerConfig.GROUP_ID_CONFIG, "test-group"));
+ var admin = clusterInstance.admin()) {
+ consumer.subscribe(List.of("topic"));
+ TestUtils.waitForCondition(() ->
consumer.poll(Duration.ofMillis(100)).isEmpty(), "polling to join group");
+ // append records to coordinator
+ consumer.commitSync();
+
+ // unload the coordinator by changing leader (0 -> 1)
+ admin.alterPartitionReassignments(Map.of(new
TopicPartition(Topic.GROUP_METADATA_TOPIC_NAME, 0),
+ Optional.of(new
NewPartitionReassignment(List.of(1))))).all().get();
+ }
Review Comment:
Yeah, it could be more robust. I’ve made some changes to the test after
addressing this comment:
https://github.com/apache/kafka/pull/21396#discussion_r2775606833. Please let
me know if you have any concerns about the latest changes. Thanks!
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