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Unpack to some location, like /opt/kafka, which will be referred to as <kafkaInstallationDir>.

Kafka has historically leveraged the Zookeeper software for its controller layer, but as Use KRaft for Kafka's controller layer. As of Kafka 3.3.1 (Oct 2022) it’s recommended to use the native Kafka Raft (“KRaft”) which improves performance and consolidates the server configuration files and process to 1 each (per node).

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In KRaft mode, the relevant configuration file is located at <kafkaInstallationDir>/config/kraft/server.properties.

A Use a minimum server cluster size of 3 is recommended for in SHRINE production environments, in which each server node functions as both a broker and controller. This is enabled by setting the process.roles to broker,controller, as noted in the Server Basics section:

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