return fmt.Errorf("invalid port")
		}
		if p.Database == "" {
			return fmt.Errorf("database unspecified")
		}
	}

	if p.QueueDir != "" {
		if !filepath.IsAbs(p.QueueDir) {
			return errors.New("queueDir path should be absolute")
		}
	}

	if p.MaxOpenConnections < 0 {
		return errors.New("maxOpenConnections cannot be less than zero")
	}

	return nil
}