Upgrade Standalone Kafka

This topic provides steps to start a standalone Kafka cluster in ZooKeeper mode, validate its functionality, and perform a rolling upgrade from Kafka 2.8.2.3.3.6.x-x to Kafka 3.7.2.3.3.6.x-x.

Starting Kafka(2.8.2.3.3.6.x-x) in ZooKeeper Mode

For details about the ODP Standalone Binaries, see Accessing Acceldata Repositories.

Start the ZooKeeper Service using the following command.

bin/zookeeper-server-start.sh config/zookeeper.properties

Start the Kafka Broker Service. Open another terminal session and run the following command.

bin/kafka-server-start.sh config/server.properties

Once all the services are successfully launched, you have a basic Kafka environment ready for use.

Pre-upgrade Validation

Before proceeding with the upgrade, validate the Kafka setup by performing the following steps:

List Topics

bin/kafka-topics.sh --list --bootstrap-server localhost:9092

Example output:

__consumer_offsets quickstart-events

Create a Same Topic

bin/kafka-topics.sh --create --topic Test1 --bootstrap-server localhost:9092

Example output:

Created topic Test1

Write Events into the Topic

bin/kafka-console-producer.sh --topic Test1 --bootstrap-server localhost:9092

Input:

>This is my first event >This is my second event

Terminate with CTRL+C.

Read Events from the Topic

bin/kafka-console-consumer.sh --topic Test1 --from-beginning --bootstrap-server localhost:9092

Example output:

This is my first event This is my second event

Upgrade Options

For details about upgrading Kafka 2 to Kafka 3, see the following pages.

Last updated on Oct 16, 2025

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