title: Spring Boot Manual Acknowledgement of kafka messages is not working
body: <p>I have a spring boot kafka consumer which consume data from a topic and store it in a Database and acknowledge it once stored.
  It is working fine  but the problem is happening if the application failed to get the DB connection after consuming the record ,in this case we are not sending the acknowledgement but still the message never consumed until or unless we change the group id and restart the consumer</p>
  
  <p>My consumer looks like below </p>
  
  <pre><code>  @KafkaListener(id = "${group.id}", topics = {"${kafka.edi.topic}"})
    public void onMessage(ConsumerRecord record, Acknowledgment acknowledgment) {
        boolean shouldAcknowledge = false;
        try {
            String tNo = getTrackingNumber((String) record.key());
  
            log.info("Check Duplicate By Comparing With DB records");
  
            if (!ediRecordService.isDuplicate(tNo)) {---this checks the record in my DB
                shouldAcknowledge = insertEDIRecord(record, tNo); --this return true
            } else {
                log.warn("Duplicate record found.");
                shouldAcknowledge = true;
            }
            if (shouldAcknowledge) {
                acknowledgment.acknowledge();
            }```
  
  
  
  So if you see the above snippet we did not sent acknowledgment.
  </code></pre>