We have upgraded our Kafka Brokers to 0.10.2.1 and at the same time also updated the log message format version.
But we know from tests that if Kafka Consumer with pre-10 client versions subscribe to the topics in the upgraded Kafka Brokers, it causes very high CPU uptick, causing serious service degradation.
Is it possible for us to setup a configuration in Kafka Brokers itself, such that Kafka Consumer clients with old versions are rejected?