Kafka - Cluster Architecture
Given a Kafka cluster with 3 brokers (IDs 0, 1, 2), if a topic has 6 partitions with replication factor 2, how many broker nodes will hold replicas for each partition?
Given a Kafka cluster with 3 brokers (IDs 0, 1, 2), if a topic has 6 partitions with replication factor 2, how many broker nodes will hold replicas for each partition?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand replication factor meaning
Replication factor 2 means each partition is stored on 2 different brokers.Step 2: Apply to partitions
Each of the 6 partitions will have replicas on 2 brokers, regardless of total brokers.Final Answer:
2 brokers per partition -> Option AQuick Check:
Replication factor = brokers per partition = 2 [OK]
Quick Trick: Replication factor equals brokers holding each partition replica [OK]
Common Mistakes:
- Confusing total brokers with replicas per partition
- Assuming replication factor equals total partitions
- Thinking each partition is on all brokers
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