Update a topic using the AWS CLI - Amazon Managed Streaming for Apache Kafka
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Update a topic using the AWS CLI

Run the following command, replacing ClusterArn with the Amazon Resource Name (ARN) of your cluster and TopicName with the name of the topic you want to update.

aws kafka update-topic --cluster-arn ClusterArn --topic-name TopicName --partition-count 6

The output of this command looks like the following JSON example.

{
    "topicArn": "arn:aws:kafka:us-east-1:123456789012:topic/MyCluster/abcd1234-abcd-dcba-4321-a1b2abcd9f9f-2/MyTopic",
    "topicName": "MyTopic",
    "status": "UPDATING"
}