What is Kafka's replication strategy and why is it important?

What is Kafka's replication strategy and why is it important?

Kafka's replication strategy ensures data durability and availability by duplicating messages across multiple brokers.

How does replication help in fault tolerance?

Replication allows Kafka to continue functioning even if some brokers fail, as the data is still available on other brokers.

What are the configurations for setting up replication?

You can configure replication in Kafka by setting the replication.factor for each topic, which determines how many copies of the data are maintained.

Can I change the replication factor after a topic is created?

Yes, you can increase the replication factor of a topic after it's created, but decreasing it requires careful handling to avoid data loss.

What happens if a broker goes down?

If a broker goes down, Kafka will automatically redirect requests to the remaining brokers that have replicas of the data.