MSK upgrade from 2.6.x to 3.5.x

💡 For upgrading your Apache Kafka version on Amazon MSK, simply refer to the guide Updating the Apache Kafka Version. This resource provides detailed instructions on how to perform the update using either the AWS Management Console or the AWS CLI.

If you prefer using the CLI, here's how you can proceed:

1. Execute the following command to retrieve a list of Kafka versions compatible with your current setup:

   aws kafka get-compatible-kafka-versions --cluster-arn ClusterArn

ℹ️ This command will produce an output similar to the example below, detailing both your current version and the versions to which you can upgrade:

   {
      "CompatibleKafkaVersions": [
          {
              "SourceVersion": "2.2.1",
              "TargetVersions": [
                  "3.3.1",
                  "3.4.1",
                  "3.4.1.1",
                  "3.5.1"
              ]
          }
      ]
   }

ℹ️ This information will help you determine the target version for upgrading your MSK cluster.

2. Select your desired target version from the list obtained in the previous step. Then, update your cluster to this version by running the following command:

   aws kafka update-cluster-kafka-version --cluster-arn ClusterArn --current-version Current-Cluster-Version --target-kafka-version TargetVersion

ℹ️ Alternatively, you can also perform this update through the AWS Management Console if you prefer a graphical interface.

🔑 Additionally, it is highly recommended to adhere to the Best Practices for Version Upgrades outlined by AWS. Following these guidelines will help ensure a smooth and successful upgrade of your MSK cluster.