Logger

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Logger

Koha will have a logging module (Koha::Utils::Logger). Please have a look at Bug 8190 for more information.

How to choose your log level?

8 levels are available: debug, info, normal, warning, error, critical, alert, unusable.

debug

Debugging information used by developpers.

Example: Display a variable's value.

info

An information message.

Example: The user's operations, indexation of data, etc.

normal

A normal operation is reported.

It is something quite important.

warning

The application could have strange behaviours.

Example: A regexp fails, a syspref does not exist, data is corrupted, etc.

error

An user error occurred. Koha catch the error and does not crash but something is wrong.

Example: Bad field format, SQL error, bad right on a file, etc.

critical

Koha is broken. The interface still responds but the service is degradated.

Example: a field is missing in the DB but the application is usable.

alert

Koha is going to be unusable, an action must be taken immediately.

unusable

The application is unusable.

Example: an important module is not installed, an important field is missing in the DB, the connection to the DB fails, etc.

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