Logging seems so trivial but is generally done in a very haphazard manner. Logs can act like a novel which explain what is happening at a very detailed level, if we change the log level, they can act as a small story in the children’s book.
Depending on our needs we should be able to change the level and get a snap shot of what is happening in the system and for this few things are necessary for the logs: 1.
It doesn't give you a perspective at different level about what is happening in the system.
These are useful when you are not sure why the system is behaving in a certain way.