Why might eager rebalancing cause more message duplication or processing delays compared to cooperative rebalancing?

hard📝 Conceptual Q10 of 15

Kafka - Consumer Groups

ABecause eager rebalancing disables offset commits during rebalance.

BBecause eager rebalancing revokes all partitions at once, causing longer pauses and potential duplicate processing.

CBecause eager rebalancing assigns partitions without consumer coordination.

DBecause eager rebalancing requires manual heartbeat management.

Step-by-Step Solution

Solution:

Step 1: Analyze eager rebalancing impact on processing
Eager rebalancing revokes all partitions simultaneously, causing consumers to pause longer and possibly reprocess messages.
Step 2: Evaluate other options
Offset commits are not disabled by eager rebalancing; partition assignment is coordinated; heartbeat management is automatic.
Final Answer:
Because eager rebalancing revokes all partitions at once, causing longer pauses and potential duplicate processing. -> Option B
Quick Check:
Eager rebalance impact = A [OK]

Quick Trick: Full revokes cause longer pauses and duplicates [OK]

Common Mistakes:

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