(camel) branch camel-4.10.x updated: fix(KafkaRecordBatchingProcessor): improve handling of expired records and batch processing (#18343)

[davsclaus]

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davsclaus pushed a commit to branch camel-4.10.x
in repository https://gitbox.apache.org/repos/asf/camel.git


The following commit(s) were added to refs/heads/camel-4.10.x by this push:
     new 0b7654b0841 fix(KafkaRecordBatchingProcessor): improve handling of 
expired records and batch processing (#18343)
0b7654b0841 is described below

commit 0b7654b08410e377ebe754da250f9441789c31ef
Author: Adithya Kashyap H M <adithyahm...@gmail.com>
AuthorDate: Thu Jun 12 11:19:45 2025 +0530

    fix(KafkaRecordBatchingProcessor): improve handling of expired records and 
batch processing (#18343)
    
    Co-authored-by: Adithya Kashyap H M <adithya.kashyap....@walmart.com>
---
 .../consumer/support/batching/KafkaRecordBatchingProcessor.java      | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git 
a/components/camel-kafka/src/main/java/org/apache/camel/component/kafka/consumer/support/batching/KafkaRecordBatchingProcessor.java
 
b/components/camel-kafka/src/main/java/org/apache/camel/component/kafka/consumer/support/batching/KafkaRecordBatchingProcessor.java
index 09247cddc39..ccf4b5478c2 100644
--- 
a/components/camel-kafka/src/main/java/org/apache/camel/component/kafka/consumer/support/batching/KafkaRecordBatchingProcessor.java
+++ 
b/components/camel-kafka/src/main/java/org/apache/camel/component/kafka/consumer/support/batching/KafkaRecordBatchingProcessor.java
@@ -110,6 +110,7 @@ final class KafkaRecordBatchingProcessor extends 
KafkaRecordProcessor {
             timeoutWatch.takenAndRestart();
         }
 
+        // If timeout has expired, process current batch but continue to 
handle new records
         if (hasExpiredRecords(consumerRecords)) {
             LOG.debug(
                     "The polling timeout has expired with {} records in cache. 
Dispatching the incomplete batch for processing",
@@ -118,9 +119,10 @@ final class KafkaRecordBatchingProcessor extends 
KafkaRecordProcessor {
             // poll timeout has elapsed, so check for expired records
             processBatch(camelKafkaConsumer);
             exchangeList.clear();
-            return ProcessingResult.newUnprocessed();
+            timeoutWatch.takenAndRestart(); // restart timer after processing 
expired batch
         }
 
+        // Always add new records after handling any expiration
         for (ConsumerRecord<Object, Object> consumerRecord : consumerRecords) {
             TopicPartition tp = new TopicPartition(consumerRecord.topic(), 
consumerRecord.partition());
             Exchange childExchange = toExchange(camelKafkaConsumer, tp, 
consumerRecord);
@@ -130,6 +132,7 @@ final class KafkaRecordBatchingProcessor extends 
KafkaRecordProcessor {
             if (exchangeList.size() >= configuration.getMaxPollRecords()) {
                 processBatch(camelKafkaConsumer);
                 exchangeList.clear();
+                timeoutWatch.takenAndRestart(); // restart timer after batch 
processed
             }
         }