Kafka - Event-Driven Architecture
How can you ensure eventual consistency between command and query sides in a Kafka CQRS system?
How can you ensure eventual consistency between command and query sides in a Kafka CQRS system?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand eventual consistency in CQRS
Command side updates state and emits events; query side updates read models asynchronously.Step 2: Use Kafka for asynchronous event propagation
Kafka topics deliver events to query handlers, enabling eventual consistency without blocking commands.Final Answer:
By using Kafka topics to asynchronously propagate events from command to query handlers -> Option CQuick Check:
Kafka async events enable eventual consistency [OK]
Quick Trick: Use Kafka events to sync command and query sides asynchronously [OK]
Common Mistakes:
MISTAKES- Trying synchronous waits in query handlers
- Merging command and query logic
- Disabling Kafka partitions incorrectly
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