[Solved] Given this code, what will be printed? from confluent_kafka import Producer def delivery_report(err, msg): if err is not None: print(f"Message failed:... Given this code, what will be printed? | Kafka

Kafka - with Java/Python

Given this code, what will be printed?

from confluent_kafka import Producer

def delivery_report(err, msg):
    if err is not None:
        print(f"Message failed: {err}")
    else:
        print(f"Message delivered to {msg.topic()} [{msg.partition()}]")

p = Producer({'bootstrap.servers': 'localhost:9092'})
p.produce('my-topic', value='hello', callback=delivery_report)
p.flush()

AMessage delivered to my-topic [partition_number]

BMessage failed: error_message

CNo output because callback is ignored

DSyntax error due to missing key argument

Step-by-Step Solution

Solution:

Step 1: Understand delivery_report callback
The callback prints success or failure message after delivery.
Step 2: Since no error, success message prints
Assuming no error, it prints "Message delivered to my-topic [partition_number]".
Final Answer:
Message delivered to my-topic [partition_number] -> Option A
Quick Check:
Callback prints delivery success message [OK]

Quick Trick: Use callback to confirm message delivery [OK]

Common Mistakes:

MISTAKES

Assuming callback is ignored
Expecting error without cause
Missing flush() causing no callback

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Given this code, what will be printed?

Step 1: Understand delivery_report callback

Step 2: Since no error, success message prints

Final Answer:

Quick Check:

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