Idempotent Producer

The video tutorial explains the concept of idempotent producers in Kafka, addressing the issue of duplicate messages caused by network errors. It describes how duplicate messages occur and how idempotent producers, introduced in Kafka version 0.11, solve this problem by using a produce request ID to detect duplicates. The tutorial also covers the necessary configurations and settings for using idempotent producers, such as retries and in-flight requests, and provides guidance on enabling this feature in Kafka.

What is a common cause of duplicate messages in Kafka?

• Kafka broker misconfiguration

• Producer sending messages too quickly

• Incorrect message format

• Network errors causing retries

How does Kafka's idempotent producer prevent duplicate message commits?

• By changing the message format

• By using a unique produce request ID

• By increasing the number of retries

• By reducing the number of in-flight requests

Which Kafka version introduced the idempotent producer feature?

• 0.11

• 0.10

• 0.9

• 0.8

What is the default setting for retries when using an idempotent producer in Kafka?

• Retries are set to 1

• Retries are set to 10

• Retries are disabled

• Retries are set to integer max value

What setting ensures that all in-sync replicas acknowledge a message in Kafka?

• acks=none

• acks=all

• acks=1

• acks=0