philipnee commented on code in PR #15023:
URL: https://github.com/apache/kafka/pull/15023#discussion_r1430784901
##########
clients/src/test/java/org/apache/kafka/clients/MetadataTest.java:
##########
@@ -1068,143 +1067,328 @@ protected boolean retainTopic(String topic, boolean
isInternal, long nowMs) {
}
@Test
- public void testUpdatePartitionLeadership() {
+ public void testTopicMetadataOnUpdatePartitionLeadership() {
+ String topic = "input-topic";
+ Uuid topicId = Uuid.randomUuid();
+
+ Time time = new MockTime();
+
+ metadata = new Metadata(
+ refreshBackoffMs,
+ refreshBackoffMaxMs,
+ metadataExpireMs,
+ new LogContext(),
+ new ClusterResourceListeners());
+ Node node1 = new Node(1, "localhost", 9091);
+ Node node2 = new Node(2, "localhost", 9091);
+
+ TopicPartition tp0 = new TopicPartition(topic, 0);
+ MetadataResponse.PartitionMetadata partition0 = new
MetadataResponse.PartitionMetadata(
+ Errors.NONE,
+ tp0,
+ Optional.of(1),
+ Optional.of(1),
+ Arrays.asList(1, 2),
+ Arrays.asList(1, 2),
+ Collections.emptyList()
+ );
+ TopicPartition tp1 = new TopicPartition(topic, 1);
+ MetadataResponse.PartitionMetadata partition1 =
+ new MetadataResponse.PartitionMetadata(
+ Errors.NONE,
+ tp1,
+ Optional.of(1),
+ Optional.of(1),
+ Arrays.asList(1, 2),
+ Arrays.asList(1, 2),
+ Collections.emptyList()
+ );
+ MetadataResponse.TopicMetadata topicMetadata = new
MetadataResponse.TopicMetadata(
+ Errors.NONE,
+ topic,
+ topicId,
+ false,
+ Arrays.asList(partition0, partition1),
+ MetadataResponse.AUTHORIZED_OPERATIONS_OMITTED
+ );
+
+ // Initialize metadata with two partitions
+ MetadataResponse response = RequestTestUtils.metadataResponse(
+ Arrays.asList(node1, node2),
+ "clusterId",
+ node1.id(),
+ Collections.singletonList(topicMetadata));
+ metadata.updateWithCurrentRequestVersion(
+ response,
+ false,
+ time.milliseconds());
+ assertEquals(2, metadata.fetch().partitionsForTopic(topic).size());
+ assertEquals(1, metadata.fetch().partition(tp0).leader().id());
+ assertEquals(1, metadata.fetch().partition(tp1).leader().id());
+
+ // "input-topic" partition 1 leader changes from node 1 to node 2
+ metadata.updatePartitionLeadership(
Review Comment:
yes this was introduced in kip-951
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