What are Kafka replication factors and why are they important?
Kafka replication factors determine how many copies of a message are stored across different brokers. They are crucial for fault tolerance and data durability.
How do I set the replication factor for a topic in Kafka?
You can set the replication factor when creating a topic using the --replication-factor
option in the Kafka topic creation command.
What happens if a broker goes down with a low replication factor?
If a broker with a low replication factor goes down, you risk losing data if the remaining brokers do not have copies of the messages.
Can I change the replication factor of an existing topic?
Yes, you can change the replication factor of an existing topic using the kafka-reassign-partitions
tool.
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