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What is the expected output when MirrorMaker is started with an invalid producer config file?

medium📝 Predict Output Q5 of 15
Kafka - Multi-Datacenter and Replication
What is the expected output when MirrorMaker is started with an invalid producer config file?
AMirrorMaker ignores the invalid config and uses defaults
BMirrorMaker starts but silently drops messages
CMirrorMaker fails to start and logs configuration errors
DMirrorMaker crashes the Kafka cluster
Step-by-Step Solution
Solution:

  1. Step 1: Understand MirrorMaker config validation

    MirrorMaker validates config files on startup and reports errors if invalid.

  2. Step 2: Predict behavior on invalid producer config

    It fails to start and logs errors rather than ignoring or crashing cluster.

  3. Final Answer:

    MirrorMaker fails to start and logs configuration errors -> Option C

  4. Quick Check:

    Invalid config causes startup failure [OK]
Quick Trick: Invalid configs prevent MirrorMaker from starting [OK]
Common Mistakes:
MISTAKES
  • Assuming MirrorMaker silently ignores errors
  • Thinking it crashes the entire Kafka cluster
  • Believing it uses default configs automatically

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