Since logging is not a direct part of the service or cache functionality, it can't really be considered part of the core design of the pattern.
由于日志记录并不是服务或缓存功能的直接子功能，因此并不能真正将其作为模式核心设计的一部分进行考虑。
2
If a core file has been created, there should be an error log entry logged by the error-logging process, which is usually started when the first software failure occurs.
System services such as logging, transaction management, and security frequently find their way into components whose core responsibility is something else.