kafka增加断线重连功能

src/server/middleware/kafka/kafka.go

@@ -19,24 +19,28 @@ func init() {
 	// 连接至Kafka集群的Leader节点
 	conn, err := kafka.DialLeader(context.Background(), "tcp", "kafka-server:9092", topic, partition)
 	if err != nil {
-		log.Error("kafka.DialLeader err: %v", err)
-		go func() {
-			for {
-				time.Sleep(time.Minute)
-				conn, err = kafka.DialLeader(context.Background(), "tcp", "kafka-server:9092", topic, partition)
-				if err == nil {
-					KafkaMod = conn
-					log.Release("Reconnected to Kafka")
-					break
-				}
-				log.Error("kafka.DialLeader retry err: %v", err)
-			}
-		}()
+		log.Debug("kafka.DialLeader err: %v", err)
+		go reconnectKafka()
 		return
 	}
+	log.Release("Reconnected to Kafka")
 	KafkaMod = conn
 }
 
+func reconnectKafka() {
+	partition := 0
+	for {
+		time.Sleep(time.Minute)
+		conn, err := kafka.DialLeader(context.Background(), "tcp", "kafka-server:9092", topic, partition)
+		if err == nil {
+			KafkaMod = conn
+			log.Debug("Reconnected to Kafka")
+			break
+		}
+		log.Debug("kafka.DialLeader retry err: %v", err)
+	}
+}
+
 func SendMsg(key, value []byte) error {
 	if KafkaMod == nil {
 		return nil
@@ -46,5 +50,9 @@ func SendMsg(key, value []byte) error {
 		Key:   key,
 		Value: value,
 	})
+	if err != nil {
+		log.Debug("WriteMessages err: %v", err)
+		go reconnectKafka()
+	}
 	return err
 }