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…

The correct answer is A. How can you improve dramatically the application restart? 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…

Developing with Kafka Streams

Question

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 dat

Options

AHow can you improve dramatically the application restart?
BMount a persistent volume for your RocksDB
CIncrease the number of partitions in your inputs topic
DReduce the Streams caching property
EIncrease the number of Streams threads

How the community answered

(24 responses)

A
75% (18)
B
8% (2)
C
4% (1)
D
13% (3)

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.

Topics

#RocksDB state store#persistent volume#Kubernetes#state recovery

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