How can I scale Kafka consumer groups effectively?
To scale Kafka consumer groups, you can increase the number of consumers in the group and ensure that your topic has enough partitions.
What happens if I have more consumers than partitions?
If you have more consumers than partitions, some consumers will be idle because each partition can only be consumed by one consumer in a group.
Is there a limit to how many partitions I can create?
Yes, while Kafka allows a large number of partitions, it's important to consider performance and management overhead. Generally, a few hundred partitions per topic is a good practice.
How do I monitor the performance of my consumer groups?
You can use tools like Kafka Manager, Confluent Control Center, or JMX metrics to monitor consumer lag and throughput.
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