THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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A better solution is to store config registrations in an internal topic. The Java producer and consumer clients can register the configs they that they support with a DescribeClientConfigsRequest. The broker can write a key-value pair to an internal topic upon receiving the request where the key is the <user, client-id> entity and the value is ClientVersion along with the list of supported configs.
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