优化

internal/task/device_persist.go

@@ -80,14 +80,32 @@ func (t *DevicePersistTask) Persist() {
 		}
 	}
 
-	// 批量删除成功处理的记录
-	if len(succeeded) > 0 {
+	total := len(devices)
+	persisted := len(succeeded)
+	failed := total - persisted
+
+	// 批量删除成功刷入的记录，失败的保留在 Redis 等待下次重试
+	if persisted > 0 {
 		if err := t.rdb.HDel(ctx, "devices", succeeded...).Err(); err != nil {
-			t.log.Error("redis HDel failed", zap.Int("count", len(succeeded)), zap.Error(err))
+			t.log.Error("redis HDel failed after persist",
+				zap.Int("persisted", persisted),
+				zap.Error(err),
+			)
 		} else {
-			t.log.Info("devices persisted and removed from redis", zap.Int("count", len(succeeded)))
+			t.log.Info("devices persisted to database and removed from redis",
+				zap.Int("persisted", persisted),
+				zap.Int("total", total),
+				zap.Int("failed", failed),
+			)
 		}
 	}
+
+	if failed > 0 {
+		t.log.Warn("some devices failed to persist, kept in redis for retry",
+			zap.Int("failed", failed),
+			zap.Int("total", total),
+		)
+	}
 }
 
 // persistDevice 处理 user_device 表写入