Hi All, We have created KIP-135 to propose that Kafka should return a non-retriable error when the producer produces a message with null key to a log compacted topic.
Please find the KIP wiki in the link : https://cwiki.apache.org/confluence/display/KAFKA/KIP-135+%3A+Send+of+null+key+to+a+compacted+topic+should+throw+non-retriable+error+back+to+user. We would love to hear your comments and suggestions. Thanks, Mayuresh
