Kafka - Consumer Groups
In Kafka's RangeAssignor, if a topic has 5 partitions and 2 consumers, how many partitions will the first consumer get?
In Kafka's RangeAssignor, if a topic has 5 partitions and 2 consumers, how many partitions will the first consumer get?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand RangeAssignor partition distribution
Partitions are divided into continuous ranges; the first consumer gets the first half (rounded up).Step 2: Calculate partitions for first consumer
5 partitions divided by 2 consumers = 2.5, rounded up to 3 partitions for first consumer.Final Answer:
3 partitions -> Option BQuick Check:
RangeAssignor first consumer partitions = 3 [OK]
Quick Trick: RangeAssignor gives first consumer the larger half if odd partitions [OK]
Common Mistakes:
- Assuming equal split always
- Ignoring rounding up
- Confusing with RoundRobin
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