How deeply does Apache Kafka in Action cover kafka-console-consumer?

Demonstrates topic selection, broker connection, default offsets, replay, cancellation, and parallel consumers without covering advanced consumer configuration.

Kafka-console-consumer

As explained in Apache Kafka in Action

kafka-console-consumer.sh is an Apache Kafka command-line utility that reads records from a topic and displays them on the console.

kafka-console-consumer.sh reads records from a Kafka topic and displays them in the terminal. It is useful for checking a price-change stream, simulating an analysis component, or watching inventory updates as they arrive. section 2.0 section 2.3

A basic consumer uses the topic and broker connection, with these operational behaviors:

Expect it to keep running until Ctrl-C; by default, it waits for and prints only new records. section 2.3
Add --from-beginning when already written records must be displayed. section 2.3

Watch current changes and replay history

Start one consumer without --from-beginning to monitor new price changes immediately. Start another with --from-beginning to replay the retained history independently; both can display the same topic without coordinating with each other. section 2.4

How Apache Kafka in Action covers it

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Also explained in

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Troubleshooting Java, Second Editionkafka-console-consumer is a Kafka command-line tool that reads and displays records from Kafka topics.

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Related concepts

clientkind of · A client is a person, organization, device, or software component that receives or uses a product, service, resource, or functionality provided by another entity.
topicuses · A topic is a named messaging destination or stream to which producers publish messages or records and from which consumers receive or read them.
recorduses · A Kafka record, also called a message, is a data item published to or consumed from a Kafka topic, optionally containing a key, value, and metadata.
Apache Kafkauses · Apache Kafka is a distributed event-streaming platform for publishing, storing, processing, and consuming streams of records.

This explainer was generated by Manning's knowledge graph from the text of Apache Kafka in Action. The section links point to the parts of the book it draws on.