How can you combine a persistent state store with a caching layer in Kafka Streams to improve performance?

hard📝 Application Q9 of 15

Kafka - Advanced Stream Processing

AUse only an in-memory store without persistence

BWrap the persistent store with a caching store using Stores.cacheable()

CManually implement caching inside the processor

DConfigure Kafka brokers to cache state store data

Step-by-Step Solution

Solution:

Step 1: Understand Kafka Streams caching
Kafka Streams provides Stores.cacheable() to add caching on top of persistent stores.
Step 2: Evaluate other options
Manual caching or broker config are not standard or recommended methods.
Final Answer:
Wrap the persistent store with a caching store using Stores.cacheable() -> Option B
Quick Check:
Use Stores.cacheable() to add cache layer [OK]

Quick Trick: Use Stores.cacheable() to add caching to persistent stores [OK]

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