1 files changed, 86 insertions, 0 deletions
diff --git a/test/kafka/kafka-client-loadtest/test_offset_fetch.go b/test/kafka/kafka-client-loadtest/test_offset_fetch.go
new file mode 100644
index 000000000..0cb99dbf7
--- /dev/null
+++ b/test/kafka/kafka-client-loadtest/test_offset_fetch.go
@@ -0,0 +1,86 @@
+package main
+
+import (
+	"context"
+	"log"
+	"time"
+
+	"github.com/IBM/sarama"
+)
+
+func main() {
+	log.Println("=== Testing OffsetFetch with Debug Sarama ===")
+
+	config := sarama.NewConfig()
+	config.Version = sarama.V2_8_0_0
+	config.Consumer.Return.Errors = true
+	config.Consumer.Offsets.Initial = sarama.OffsetOldest
+	config.Consumer.Offsets.AutoCommit.Enable = true
+	config.Consumer.Offsets.AutoCommit.Interval = 100 * time.Millisecond
+	config.Consumer.Group.Session.Timeout = 30 * time.Second
+	config.Consumer.Group.Heartbeat.Interval = 3 * time.Second
+
+	brokers := []string{"localhost:9093"}
+	group := "test-offset-fetch-group"
+	topics := []string{"loadtest-topic-0"}
+
+	log.Printf("Creating consumer group: group=%s brokers=%v topics=%v", group, brokers, topics)
+
+	consumerGroup, err := sarama.NewConsumerGroup(brokers, group, config)
+	if err != nil {
+		log.Fatalf("Failed to create consumer group: %v", err)
+	}
+	defer consumerGroup.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	handler := &testHandler{}
+
+	log.Println("Starting consumer group session...")
+	log.Println("Watch for 🔍 [SARAMA-DEBUG] logs to trace OffsetFetch calls")
+
+	go func() {
+		for {
+			if err := consumerGroup.Consume(ctx, topics, handler); err != nil {
+				log.Printf("Error from consumer: %v", err)
+			}
+			if ctx.Err() != nil {
+				return
+			}
+		}
+	}()
+
+	// Wait for context to be done
+	<-ctx.Done()
+	log.Println("Test completed")
+}
+
+type testHandler struct{}
+
+func (h *testHandler) Setup(session sarama.ConsumerGroupSession) error {
+	log.Printf("✓ Consumer group session setup: generation=%d memberID=%s", session.GenerationID(), session.MemberID())
+	return nil
+}
+
+func (h *testHandler) Cleanup(session sarama.ConsumerGroupSession) error {
+	log.Println("Consumer group session cleanup")
+	return nil
+}
+
+func (h *testHandler) ConsumeClaim(session sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {
+	log.Printf("✓ Started consuming: topic=%s partition=%d offset=%d", claim.Topic(), claim.Partition(), claim.InitialOffset())
+
+	count := 0
+	for message := range claim.Messages() {
+		count++
+		log.Printf("  Received message #%d: offset=%d", count, message.Offset)
+		session.MarkMessage(message, "")
+
+		if count >= 5 {
+			log.Println("Received 5 messages, stopping")
+			return nil
+		}
+	}
+	return nil
+}