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A MirrorMaker 2 setup fails to replicate topics. Which configuration mistake could cause this?

medium📝 Debug Q6 of 15
Kafka - Multi-Datacenter and Replication
A MirrorMaker 2 setup fails to replicate topics. Which configuration mistake could cause this?
AUsing 'producer.acks=all' in MirrorMaker config
BMissing 'clusters' section defining source and target clusters
CSetting 'replication.factor' to 3
DEnabling 'auto.offset.reset=earliest'
Step-by-Step Solution
Solution:

  1. Step 1: Check MirrorMaker 2 config requirements

    MirrorMaker 2 requires 'clusters' section to define source and target clusters.

  2. Step 2: Identify missing clusters section impact

    Without it, MirrorMaker cannot connect or replicate data.

  3. Final Answer:

    Missing 'clusters' section defining source and target clusters -> Option B

  4. Quick Check:

    Missing clusters config = replication failure [OK]
Quick Trick: Always define clusters in MirrorMaker config [OK]
Common Mistakes:
  • Thinking replication.factor affects connection
  • Confusing producer.acks with replication setup
  • Misunderstanding offset reset role

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