CalvinConfluent commented on code in PR #18277: URL: https://github.com/apache/kafka/pull/18277#discussion_r1938076119
########## core/src/test/java/kafka/server/integration/EligibleLeaderReplicasIntegrationTest.java: ########## @@ -0,0 +1,450 @@ +/* + * 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 kafka.server.integration; +import kafka.integration.KafkaServerTestHarness; +import kafka.server.KafkaBroker; +import kafka.server.KafkaConfig; +import kafka.utils.Logging; +import kafka.utils.TestUtils; + +import org.apache.kafka.clients.CommonClientConfigs; +import org.apache.kafka.clients.admin.Admin; +import org.apache.kafka.clients.admin.AlterConfigOp; +import org.apache.kafka.clients.admin.ConfigEntry; +import org.apache.kafka.clients.admin.FeatureUpdate; +import org.apache.kafka.clients.admin.NewTopic; +import org.apache.kafka.clients.admin.TopicDescription; +import org.apache.kafka.clients.admin.UpdateFeaturesOptions; +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecords; +import org.apache.kafka.clients.consumer.KafkaConsumer; +import org.apache.kafka.clients.producer.KafkaProducer; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.Node; +import org.apache.kafka.common.TopicPartitionInfo; +import org.apache.kafka.common.config.ConfigResource; +import org.apache.kafka.common.config.TopicConfig; +import org.apache.kafka.common.security.auth.SecurityProtocol; +import org.apache.kafka.common.serialization.StringDeserializer; +import org.apache.kafka.common.serialization.StringSerializer; +import org.apache.kafka.server.common.EligibleLeaderReplicasVersion; +import org.apache.kafka.storage.internals.checkpoint.CleanShutdownFileHandler; + +import org.junit.jupiter.api.AfterEach; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.TestInfo; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.ValueSource; + +import java.io.File; +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.Properties; +import java.util.concurrent.ExecutionException; +import java.util.function.BiFunction; +import java.util.stream.Collectors; + +import scala.collection.JavaConverters; +import scala.collection.Seq; +import scala.collection.mutable.HashMap; + +import static org.junit.jupiter.api.Assertions.assertDoesNotThrow; +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertTrue; + +public class EligibleLeaderReplicasIntegrationTest extends KafkaServerTestHarness implements Logging { + private String bootstrapServer; + private String testTopicName; + private Admin adminClient; + @Override + public Seq<KafkaConfig> generateConfigs() { + List<Properties> brokerConfigs = new ArrayList<>(); + brokerConfigs.addAll(scala.collection.JavaConverters.seqAsJavaList(TestUtils.createBrokerConfigs( + 5, + true, + true, + scala.Option.<SecurityProtocol>empty(), + scala.Option.<File>empty(), + scala.Option.<Properties>empty(), + true, + false, + false, + false, + new HashMap<>(), + 1, + false, + 1, + (short) 4, + 0, + false + ))); + List<KafkaConfig> configs = new ArrayList<>(); + for (Properties props : brokerConfigs) { + configs.add(KafkaConfig.fromProps(props)); + } + return JavaConverters.asScalaBuffer(configs).toSeq(); + } + + @BeforeEach + public void setUp(TestInfo info) { + super.setUp(info); + // create adminClient + Properties props = new Properties(); + bootstrapServer = bootstrapServers(listenerName()); + props.put(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG, bootstrapServer); + adminClient = Admin.create(props); + adminClient.updateFeatures( + Map.of(EligibleLeaderReplicasVersion.FEATURE_NAME, + new FeatureUpdate(EligibleLeaderReplicasVersion.ELRV_1.featureLevel(), FeatureUpdate.UpgradeType.UPGRADE)), + new UpdateFeaturesOptions() + ); + testTopicName = String.format("%s-%s", info.getTestMethod().get().getName(), "ELR-test"); + } + + @AfterEach + public void close() throws Exception { + if (adminClient != null) adminClient.close(); + super.tearDown(); + } + + @ParameterizedTest + @ValueSource(strings = {"kraft"}) + public void testHighWatermarkShouldNotAdvanceIfUnderMinIsr(String quorum) throws ExecutionException, InterruptedException { + adminClient.createTopics( + Collections.singletonList(new NewTopic(testTopicName, 1, (short) 4))).all().get(); + TestUtils.waitForPartitionMetadata(brokers(), testTopicName, 0, 1000); + + ConfigResource configResource = new ConfigResource(ConfigResource.Type.TOPIC, testTopicName); + Collection<AlterConfigOp> ops = new ArrayList<>(); + ops.add(new AlterConfigOp(new ConfigEntry(TopicConfig.MIN_IN_SYNC_REPLICAS_CONFIG, "3"), AlterConfigOp.OpType.SET)); + Map<ConfigResource, Collection<AlterConfigOp>> configOps = Collections.singletonMap(configResource, ops); + // alter configs on target cluster + adminClient.incrementalAlterConfigs(configOps).all().get(); + Producer producer = null; + Consumer consumer = null; + try { + // check which partition is on broker 0 which we'll kill Review Comment: Looks like this comment is not useful. 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