Listener gets duplicated records with 2.2.0

I get duplicated records in my listener. On the kafka bus are single items. That’s my listener:

 @KafkaListener(id = "courses-administration-listener",
            topicPartitions =
                    {@TopicPartition(topic = "courses",
                            partitionOffsets = @PartitionOffset(partition = "0", initialOffset = "0"))})
    public void listen(ConsumerRecord<String, String> cr) {
        try {
            Operation op = mapper.readValue(cr.value(), Operation.class);
        } catch (IllegalArgumentException | IOException e) {
            log.error(e.getMessage());
        }
    }

They are coming from the listen method.

Which informations do you need and where I can debug? 😃

[garyrussell]

Thanks for reporting back.

[MartinX3]

Maybe the Upgrade to Apache Kafka 2.1.0 after the 20. Nov fixed the problem. I can’t reproduce it anymore. 😃