Broker configuration basics in Kafka - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Kafka broker?

A Kafka broker is a server that stores and serves Kafka topics. It handles data storage, message delivery, and client requests.

beginner

What does the broker.id configuration do?

The broker.id is a unique identifier for each Kafka broker in the cluster. It helps Kafka distinguish between brokers.

beginner

Why is log.dirs important in broker configuration?

log.dirs specifies the directory where Kafka stores its log data (messages). It must point to a valid disk location.

intermediate

What is the role of zookeeper.connect in Kafka broker config?

zookeeper.connect tells the broker how to connect to ZooKeeper, which manages cluster metadata and broker coordination.

intermediate

How does num.network.threads affect broker performance?

num.network.threads sets how many threads handle network requests. More threads can improve throughput but use more CPU.

What must each Kafka broker have to be uniquely identified in a cluster?

A zookeeper.connect

B log.dirs

C broker.id

D num.network.threads

Each broker needs a unique broker.id to be identified in the Kafka cluster.

Which configuration specifies where Kafka stores its message logs?

A broker.id

B num.network.threads

C zookeeper.connect

D log.dirs

log.dirs defines the directory path for storing Kafka logs.

What does zookeeper.connect configure?

A Connection to ZooKeeper service

B Log storage location

C Broker's unique ID

D Number of network threads

zookeeper.connect tells the broker how to connect to ZooKeeper for cluster coordination.

Increasing num.network.threads will likely:

A Improve network request handling

B Decrease CPU usage

C Change broker ID

D Modify log directory

More network threads help handle more network requests simultaneously, improving throughput.

Which of these is NOT a broker configuration?

A broker.id

B topic.name

C zookeeper.connect

D log.dirs

topic.name is not a broker configuration; it relates to topic settings.

Explain the purpose of the broker.id and why it is important in Kafka broker configuration.

Think about how Kafka knows which server is which.

Describe how log.dirs and zookeeper.connect work together in Kafka broker setup.

One handles data storage, the other handles cluster metadata.