Kafka - Multi-Datacenter and Replication
You want MirrorMaker 2 to replicate only topics starting with "logs-" from source to target cluster. Which config setting achieves this?
You want MirrorMaker 2 to replicate only topics starting with "logs-" from source to target cluster. Which config setting achieves this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand topic filtering in MirrorMaker 2
MirrorMaker 2 supports filtering topics by regex using the "topics.regex" config.Step 2: Match regex to desired pattern
To match all topics starting with "logs-", the regex "logs-.*" correctly matches any topic beginning with "logs-".Step 3: Compare options
"topics": "logs-*" uses "topics" with wildcard which is not supported; "topics": "logs-" matches exact topic name; "topics.regex": "^logs$" matches only "logs" exactly.Final Answer:
"topics.regex": "logs-.*" -> Option CQuick Check:
Use topics.regex with proper regex for filtering [OK]
Quick Trick: Use topics.regex with regex pattern to filter topics [OK]
Common Mistakes:
MISTAKES- Using wildcard * in topics instead of regex
- Confusing exact match with regex match
- Using incorrect regex that matches wrong topics
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