[Solved] Identify the error in this Kafka Producer code snippet: Properties props = new Properties(); props.put("bootstrap.servers", "localhost:9092"); props.put("key.serializer", "StringSerializer"); props.... | Kafka

Kafka - Producers

Identify the error in this Kafka Producer code snippet:

Properties props = new Properties();
props.put("bootstrap.servers", "localhost:9092");
props.put("key.serializer", "StringSerializer");
props.put("value.serializer", "StringSerializer");
KafkaProducer producer = new KafkaProducer<>(props);
ProducerRecord record = new ProducerRecord<>("topic", "key", "value");
producer.send(record);
producer.close();

AMissing topic name in ProducerRecord

BProperties object not initialized

CProducer not closed properly

DIncorrect serializer class names

Step-by-Step Solution

Solution:

Step 1: Check serializer class names in properties
The serializer values must be full class names like "org.apache.kafka.common.serialization.StringSerializer".
Step 2: Verify other code parts
Topic name is present, producer is closed properly, and properties object is initialized correctly.
Final Answer:
Incorrect serializer class names -> Option D
Quick Check:
Serializer class names must be full package names [OK]

Quick Trick: Use full serializer class names with package [OK]

Common Mistakes:

Using short class names without package
Forgetting to close producer
Leaving topic name empty

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More Kafka Quizzes

Identify the error in this Kafka Producer code snippet:

Step 1: Check serializer class names in properties

Step 2: Verify other code parts

Final Answer:

Quick Check:

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