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transactional producer kafka

Pragya Keshap answered on February 28, 2023 Popularity 6/10 Helpfulness 1/10

answer transactional producer kafka

transactional producer kafka

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The purpose of the transactional.id is to enable transaction recovery across multiple sessions of a single producer instance.. Provides the transaction guarantee

public class HelloProducer {
    private static final Logger logger = LogManager.getLogger();

    public static void main(String[] args) {

        logger.info("Creating Kafka Producer...");
        Properties props = new Properties();
        props.put(ProducerConfig.CLIENT_ID_CONFIG, AppConfigs.applicationID);
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, AppConfigs.bootstrapServers);
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, IntegerSerializer.class.getName());
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
        props.put(ProducerConfig.TRANSACTIONAL_ID_CONFIG, AppConfigs.transaction_id);

        KafkaProducer<Integer, String> producer = new KafkaProducer<>(props);
        producer.initTransactions();

        logger.info("Starting First Transaction...");
        producer.beginTransaction();
        try {
            for (int i = 1; i <= AppConfigs.numEvents; i++) {
                producer.send(new ProducerRecord<>(AppConfigs.topicName1, i, "Simple Message-T1-" + i));
                producer.send(new ProducerRecord<>(AppConfigs.topicName2, i, "Simple Message-T1-" + i));
            }
            logger.info("Committing First Transaction.");
            producer.commitTransaction();
        }catch (Exception e){
            logger.error("Exception in First Transaction. Aborting...");
            producer.abortTransaction();
            producer.close();
            throw new RuntimeException(e);
        }

        logger.info("Starting Second Transaction...");
        producer.beginTransaction();
        try {
            for (int i = 1; i <= AppConfigs.numEvents; i++) {
                producer.send(new ProducerRecord<>(AppConfigs.topicName1, i, "Simple Message-T2-" + i));
                producer.send(new ProducerRecord<>(AppConfigs.topicName2, i, "Simple Message-T2-" + i));
            }
            logger.info("Aborting Second Transaction.");
            producer.abortTransaction();
        }catch (Exception e){
            logger.error("Exception in Second Transaction. Aborting...");
            producer.abortTransaction();
            producer.close();
            throw new RuntimeException(e);
        }

        logger.info("Finished - Closing Kafka Producer.");
        producer.close();

    }
}

Popularity 6/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java producer transactional

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Contributed on Feb 28 2023

Pragya Keshap

0 Answers Avg Quality 2/10

transactional producer kafka

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