KafkaBasedLog<String, byte[]> setupAndCreateKafkaBasedLog(String topic, final WorkerConfig config) { Map<String, Object> originals = config.originals(); Map<String, Object> producerProps = new HashMap<>(originals); producerProps.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName()); producerProps.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, ByteArraySerializer.class.getName()); producerProps.put(ProducerConfig.DELIVERY_TIMEOUT_MS_CONFIG, Integer.MAX_VALUE); Map<String, Object> consumerProps = new HashMap<>(originals); consumerProps.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName()); consumerProps.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, ByteArrayDeserializer.class.getName()); Map<String, Object> adminProps = new HashMap<>(originals); NewTopic topicDescription = TopicAdmin.defineTopic(topic). compacted(). partitions(1). replicationFactor(config.getShort(DistributedConfig.CONFIG_STORAGE_REPLICATION_FACTOR_CONFIG)). build(); return createKafkaBasedLog(topic, producerProps, consumerProps, new ConsumeCallback(), topicDescription, adminProps); }