If a Kafka topic has min.insync.replicas=2 and replication factor 3, what happens if only one replica is in sync during a produce request with acks=all?
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Kafka - Topics and Partitions
If a Kafka topic has min.insync.replicas=2 and replication factor 3, what happens if only one replica is in sync during a produce request with acks=all?
AThe produce request fails because minimum in-sync replicas are not met
BThe produce request succeeds with reduced durability
CKafka automatically increases replicas to meet the minimum
DThe produce request is queued until replicas catch up
Step-by-Step Solution
Solution:
Step 1: Understand min.insync.replicas meaning
This setting defines the minimum number of replicas that must acknowledge a write for it to succeed when acks=all.
Step 2: Analyze the scenario
With only one replica in sync but minimum required is two, the produce request will fail to ensure durability.
Final Answer:
The produce request fails because minimum in-sync replicas are not met -> Option A
Quick Check:
min.insync.replicas enforces durability with acks=all [OK]
