Shekharrajak commented on code in PR #19311: URL: https://github.com/apache/druid/pull/19311#discussion_r3207039264
########## embedded-tests/src/test/java/org/apache/druid/testing/embedded/indexing/EmbeddedShareGroupIngestionTest.java: ########## @@ -0,0 +1,446 @@ +/* + * 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.druid.testing.embedded.indexing; + +import com.fasterxml.jackson.databind.ObjectMapper; +import org.apache.druid.data.input.InputFormat; +import org.apache.druid.data.input.impl.CsvInputFormat; +import org.apache.druid.data.input.impl.DimensionsSpec; +import org.apache.druid.data.input.impl.JsonInputFormat; +import org.apache.druid.data.input.impl.TimestampSpec; +import org.apache.druid.indexer.granularity.UniformGranularitySpec; +import org.apache.druid.indexing.kafka.KafkaIndexTaskModule; +import org.apache.druid.indexing.kafka.KafkaIndexTaskTuningConfig; +import org.apache.druid.indexing.kafka.ShareGroupIndexTask; +import org.apache.druid.indexing.kafka.ShareGroupIndexTaskIOConfig; +import org.apache.druid.jackson.DefaultObjectMapper; +import org.apache.druid.java.util.common.DateTimes; +import org.apache.druid.java.util.common.StringUtils; +import org.apache.druid.java.util.common.granularity.Granularities; +import org.apache.druid.query.DruidMetrics; +import org.apache.druid.segment.indexing.DataSchema; +import org.apache.druid.testing.embedded.EmbeddedBroker; +import org.apache.druid.testing.embedded.EmbeddedCoordinator; +import org.apache.druid.testing.embedded.EmbeddedDruidCluster; +import org.apache.druid.testing.embedded.EmbeddedHistorical; +import org.apache.druid.testing.embedded.EmbeddedIndexer; +import org.apache.druid.testing.embedded.EmbeddedOverlord; +import org.apache.druid.testing.embedded.junit5.EmbeddedClusterTestBase; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.joda.time.DateTime; +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.Test; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ThreadLocalRandom; + +/** End-to-end IT for Kafka share-group ingestion; requires Docker. */ +public class EmbeddedShareGroupIngestionTest extends EmbeddedClusterTestBase +{ + private static final String COL_TIMESTAMP = "__time"; + private static final String COL_ITEM = "item"; + private static final String COL_VALUE = "value"; + + private static final InputFormat DEFAULT_CSV_FORMAT = + new CsvInputFormat(List.of(COL_TIMESTAMP, COL_ITEM, COL_VALUE), null, null, false, 0, false); + + /** Lets a freshly submitted share-group task reach STABLE before records are produced. */ + private static final long SHARE_CONSUMER_READY_DELAY_MS = 3_000L; + + private final EmbeddedCoordinator coordinator = new EmbeddedCoordinator(); + private final EmbeddedOverlord overlord = new EmbeddedOverlord(); + private final EmbeddedIndexer indexer = new EmbeddedIndexer(); + private final EmbeddedHistorical historical = new EmbeddedHistorical(); + private final EmbeddedBroker broker = new EmbeddedBroker(); + + private ShareGroupKafkaResource kafkaServer; + + @Override + public EmbeddedDruidCluster createCluster() + { + kafkaServer = new ShareGroupKafkaResource(); + + final EmbeddedDruidCluster cluster = EmbeddedDruidCluster.withEmbeddedDerbyAndZookeeper(); + indexer.addProperty("druid.segment.handoff.pollDuration", "PT0.1s"); + + cluster.addExtension(KafkaIndexTaskModule.class) + .addResource(kafkaServer) + .useLatchableEmitter() + .useDefaultTimeoutForLatchableEmitter(30) + .addCommonProperty("druid.monitoring.emissionPeriod", "PT0.1s") + .addServer(coordinator) + .addServer(overlord) + .addServer(indexer) + .addServer(historical) + .addServer(broker); + + return cluster; + } + + @Test + public void test_shareGroupIngestion_basicEndToEnd() throws InterruptedException Review Comment: Subscribe to topic with KafkaShareConsumer (groupId), poll → parse (CSV) → persist → publish → acknowledge(ACCEPT) → commitSync → broker offset persistence. 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