How can you configure Kafka to minimize data loss during a datacenter failure in a multi-datacenter setup?

hard📝 Application Q9 of 15

Kafka - Multi-Datacenter and Replication

ASet min.insync.replicas to 1 and replication.factor to 1

BDisable replication and increase producer retries

CSet min.insync.replicas to 2 and replication.factor to 3 across datacenters

DUse only one datacenter with high storage capacity

Step-by-Step Solution

Solution:

Step 1: Understand min.insync.replicas and replication factor
min.insync.replicas controls how many replicas must acknowledge writes; replication.factor controls total copies.
Step 2: Analyze configuration for minimizing data loss
Setting min.insync.replicas to 2 with replication.factor 3 ensures at least two copies confirm writes, reducing loss risk.
Final Answer:
Set min.insync.replicas to 2 and replication.factor to 3 across datacenters -> Option C
Quick Check:
Higher min.insync.replicas + replication factor = less data loss [OK]

Quick Trick: Require multiple replicas to confirm writes [OK]

Common Mistakes:

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