ijuma commented on code in PR #12365:
URL: https://github.com/apache/kafka/pull/12365#discussion_r923946004


##########
clients/src/main/java/org/apache/kafka/clients/producer/KafkaProducer.java:
##########
@@ -1491,20 +1495,25 @@ public void setPartition(int partition) {
 
             if (log.isTraceEnabled()) {
                 // Log the message here, because we don't know the partition 
before that.
-                log.trace("Attempting to append record {} with callback {} to 
topic {} partition {}", record, userCallback, record.topic(), partition);
+                log.trace("Attempting to append record {} with callback {} to 
topic {} partition {}", record, userCallback, topic, partition);
             }
+
+            // Reset record to null here so that it doesn't have to be alive 
as long as the batch is.
+            record = null;

Review Comment:
   Thanks for the explanation. Is there a possibility the trace could be done 
in the caller context? Or is that missing some of the required information?



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