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Which Kafka component coordinates the rebalancing process among consumers?

easy📝 Conceptual Q2 of 15
Kafka - Consumer Groups
Which Kafka component coordinates the rebalancing process among consumers?
AKafka Broker
BConsumer Coordinator
CKafka Controller
DZookeeper
Step-by-Step Solution
Solution:

  1. Step 1: Identify the role of Kafka components

    Kafka brokers handle message storage, controller manages cluster metadata, Zookeeper manages cluster state, and Consumer Coordinator manages consumer groups.

  2. Step 2: Determine who manages rebalancing

    The Consumer Coordinator is responsible for managing consumer group membership and triggering rebalances.

  3. Final Answer:

    Consumer Coordinator -> Option B

  4. Quick Check:

    Rebalance coordination = Consumer Coordinator [OK]
Quick Trick: Consumer Coordinator manages group membership and rebalancing [OK]
Common Mistakes:
  • Confusing Kafka Controller with Consumer Coordinator
  • Thinking Zookeeper manages rebalancing
  • Assuming Kafka Broker triggers rebalances

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