How can you improve dramatically the application restart?

You are running a Kafka Streams application in a Docker container managed by Kubernetes, and upon application restart, it takes a long time for the docker container to replicate the state and get back to processing the data .

How can you improve dramatically the application restart?
A . Mount a persistent volume for your RocksDB
B . Increase the number of partitions in your inputs topic
C . Reduce the Streams caching property
D . Increase the number of Streams threads

View Answer

Answer: A

Explanation:

Although any Kafka Streams application is stateless as the state is stored in Kafka, it can take a while and lots of resources to recover the state from Kafka. In order to speed up recovery, it is advised to store the Kafka Streams state on a persistent volume, so that only the missing part of the state needs to be recovered.