apalan60 commented on code in PR #20420: URL: https://github.com/apache/kafka/pull/20420#discussion_r2311828266
########## clients/clients-integration-tests/src/test/java/org/apache/kafka/clients/admin/DescribeProducersWithBrokerIdTest.java: ########## @@ -0,0 +1,143 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.clients.admin; + +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.Node; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.errors.NotLeaderOrFollowerException; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.BeforeEach; + +import java.util.List; + +import static org.apache.kafka.coordinator.group.GroupCoordinatorConfig.GROUP_INITIAL_REBALANCE_DELAY_MS_CONFIG; +import static org.apache.kafka.coordinator.group.GroupCoordinatorConfig.OFFSETS_TOPIC_PARTITIONS_CONFIG; +import static org.apache.kafka.server.config.ServerLogConfigs.AUTO_CREATE_TOPICS_ENABLE_CONFIG; +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertFalse; +import static org.junit.jupiter.api.Assertions.assertNotNull; + + +@ClusterTestDefaults( + brokers = 4, + serverProperties = { + @ClusterConfigProperty(key = AUTO_CREATE_TOPICS_ENABLE_CONFIG, value = "false"), + @ClusterConfigProperty(key = OFFSETS_TOPIC_PARTITIONS_CONFIG, value = "1"), + @ClusterConfigProperty(key = GROUP_INITIAL_REBALANCE_DELAY_MS_CONFIG, value = "0") + } +) +class DescribeProducersWithBrokerIdTest { + private static final String TOPIC_NAME = "test-topic"; + private static final int NUM_PARTITIONS = 1; + private static final short REPLICATION_FACTOR = 3; + + private final ClusterInstance clusterInstance; + private final TopicPartition topicPartition; + + public DescribeProducersWithBrokerIdTest(ClusterInstance clusterInstance) { + this.clusterInstance = clusterInstance; + this.topicPartition = new TopicPartition(TOPIC_NAME, 0); + } + + private static void sendTestRecords(Producer<byte[], byte[]> producer) { + producer.send(new ProducerRecord<>(TOPIC_NAME, 0, "key-0".getBytes(), "value-0".getBytes())); + producer.flush(); + } + + @BeforeEach + void setUp() throws InterruptedException { + clusterInstance.createTopic(TOPIC_NAME, NUM_PARTITIONS, REPLICATION_FACTOR); + } + + @ClusterTest + void testDescribeProducersDefaultRoutesToLeader() throws Exception { + try (Producer<byte[], byte[]> producer = clusterInstance.producer(); + var admin = clusterInstance.admin()) { + sendTestRecords(producer); + + var stateWithExplicitLeader = admin.describeProducers(List.of(topicPartition), + new DescribeProducersOptions().brokerId(clusterInstance.getLeaderBrokerId(topicPartition))) + .partitionResult(topicPartition).get(); + + var stateWithDefaultRouting = admin.describeProducers(List.of(topicPartition)) + .partitionResult(topicPartition).get(); + + assertNotNull(stateWithDefaultRouting); + assertFalse(stateWithDefaultRouting.activeProducers().isEmpty()); + assertEquals(stateWithExplicitLeader.activeProducers(), stateWithDefaultRouting.activeProducers()); + } + } + + @ClusterTest + void testDescribeProducersFromFollower() throws Exception { + try (Producer<byte[], byte[]> producer = clusterInstance.producer(); + var admin = clusterInstance.admin()) { + sendTestRecords(producer); + + var topicDescription = admin.describeTopics(List.of(topicPartition.topic())).allTopicNames().get().get(topicPartition.topic()); + var replicaBrokerIds = topicDescription.partitions().get(topicPartition.partition()).replicas().stream() + .map(Node::id) + .toList(); + + var leaderBrokerId = clusterInstance.getLeaderBrokerId(topicPartition); + var followerBrokerId = replicaBrokerIds.stream() + .filter(id -> id != leaderBrokerId) + .findFirst() + .orElseThrow(() -> new IllegalStateException("No follower found for partition " + topicPartition)); + + var followerState = admin.describeProducers(List.of(topicPartition), + new DescribeProducersOptions().brokerId(followerBrokerId)) + .partitionResult(topicPartition).get(); + var leaderState = admin.describeProducers(List.of(topicPartition)) + .partitionResult(topicPartition).get(); + + assertNotNull(followerState); + assertFalse(followerState.activeProducers().isEmpty()); + assertEquals(leaderState.activeProducers(), followerState.activeProducers()); + } + } + + @ClusterTest + void testDescribeProducersWithInvalidBrokerId() throws Exception { + try (Producer<byte[], byte[]> producer = clusterInstance.producer(); + var admin = clusterInstance.admin()) { + sendTestRecords(producer); + + var topicDescription = admin.describeTopics(List.of(topicPartition.topic())).allTopicNames().get().get(topicPartition.topic()); + var replicaBrokerIds = topicDescription.partitions().get(topicPartition.partition()).replicas().stream() + .map(Node::id) + .toList(); + + var nonReplicaBrokerId = clusterInstance.brokerIds().stream() + .filter(id -> !replicaBrokerIds.contains(id)) Review Comment: Updated. -- This is an automated message from the Apache Git Service. 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