Kafka Cheatsheet

bash

# Topic management
kafka-topics.sh --bootstrap-server localhost:9092 --create --topic orders --partitions 6 --replication-factor 3
kafka-topics.sh --bootstrap-server localhost:9092 --list
kafka-topics.sh --bootstrap-server localhost:9092 --describe --topic orders

# Producer
kafka-console-producer.sh --bootstrap-server localhost:9092 --topic orders

# Consumer
kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic orders --from-beginning --group mygroup

# Consumer groups
kafka-consumer-groups.sh --bootstrap-server localhost:9092 --list
kafka-consumer-groups.sh --bootstrap-server localhost:9092 --describe --group mygroup

# Lag monitoring
kafka-consumer-groups.sh --bootstrap-server localhost:9092 --describe --group mygroup | grep LAG

Key Config Properties

Config	Producer	Consumer

|--------|----------|---------|

acks	0/1/all	N/A
retries	3	N/A
batch.size	16384	N/A
auto.offset.reset	N/A	earliest/latest
enable.auto.commit	N/A	true/false
max.poll.records	N/A	500

Quick Reference — Kafka

Key Points for Revision

•Review the overview section for core architecture and fundamentals

•Practice commands/configurations from the cheatsheet section

•Use interview Q&A for active recall before exams or interviews

•Cross-reference with related tools in the devops academy

Practice Approach

1.Read the overview to understand what and why

2.Work through fundamentals for how

3.Attempt hands-on labs or configurations

4.Test yourself with interview questions

5.Keep cheatsheet accessible for quick reference during work

Further Learning

Connect this topic to the broader devops ecosystem.

Each tool in this academy is designed to work with others —

understanding the integration points is what separates intermediate from senior practitioners.

Apache Kafka — Cheatsheets