In reviewJNR-006-L03

Choosing log levels

On This Lesson 4 topics

The content for this lesson is written and waiting for review. The outline below shows what it covers. It will be published once it is approved.

In this lesson

pick the right level.

ERROR: something failed and needs attention.
WARN: odd, but the system carried on.
INFO: important business events, such as "order placed".
DEBUG: details for developers; usually off in production.
TRACE: very fine detail. Do not use ERROR for expected cases, like a user typing a wrong password.

Draft outline details

a table: situation / level (payment declined: WARN; database down: ERROR; order placed: INFO).

Level for "user not found, as expected"?

Show answer

Not ERROR; INFO or DEBUG.

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