/* * 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.streams.tests; import org.apache.kafka.clients.producer.KafkaProducer; import org.apache.kafka.clients.producer.ProducerConfig; import org.apache.kafka.clients.producer.ProducerRecord; import org.apache.kafka.common.serialization.Serdes; import org.apache.kafka.common.serialization.StringSerializer; import org.apache.kafka.common.utils.Exit; import org.apache.kafka.streams.KafkaStreams; import org.apache.kafka.streams.StreamsConfig; import org.apache.kafka.streams.kstream.ForeachAction; import org.apache.kafka.streams.kstream.KStream; import org.apache.kafka.streams.kstream.KStreamBuilder; import java.util.Properties; import java.util.concurrent.TimeUnit; public class ShutdownDeadlockTest { private final String kafka; public ShutdownDeadlockTest(final String kafka) { this.kafka = kafka; } public void start() { final String topic = "source"; final Properties props = new Properties(); props.setProperty(StreamsConfig.APPLICATION_ID_CONFIG, "shouldNotDeadlock"); props.setProperty(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, kafka); final KStreamBuilder builder = new KStreamBuilder(); final KStream<String, String> source = builder.stream(Serdes.String(), Serdes.String(), topic); source.foreach(new ForeachAction<String, String>() { @Override public void apply(final String key, final String value) { throw new RuntimeException("KABOOM!"); } }); final KafkaStreams streams = new KafkaStreams(builder, props); streams.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(final Thread t, final Throwable e) { Exit.exit(1); } }); Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() { @Override public void run() { streams.close(5, TimeUnit.SECONDS); } })); final Properties producerProps = new Properties(); producerProps.put(ProducerConfig.CLIENT_ID_CONFIG, "SmokeTest"); producerProps.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, kafka); producerProps.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class); producerProps.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class); final KafkaProducer<String, String> producer = new KafkaProducer<>(producerProps); producer.send(new ProducerRecord<>(topic, "a", "a")); producer.flush(); streams.start(); synchronized (this) { try { wait(); } catch (InterruptedException e) { // ignored } } } }