Kafka - with Java/Python
What will happen when the following Java Kafka producer code is executed?
Properties props = new Properties();
props.put("bootstrap.servers", "localhost:9092");
props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
KafkaProducer producer = new KafkaProducer<>(props);
ProducerRecord record = new ProducerRecord<>("test-topic", "key1", "value1");
producer.send(record);
producer.close();