LOG_LEVEL_CRITICAL - Logs that describe an unrecoverable application or system crash, or a catastrophic failure that requires immediate attention.
LOG_LEVEL_DEBUG - Logs that are used for interactive investigation during development. These logs should primarily contain information useful for debugging and have no long-term value.
LOG_LEVEL_ERROR - Logs that highlight when the current flow of execution is stopped due to a failure. These should indicate a failure in the current activity, not an application-wide failure.
LOG_LEVEL_INFORMATION - Logs that track the general flow of the application. These logs should have long-term value.
LOG_LEVEL_NONE - Not used for writing log messages. Specifies that a logging category should not write any messages.
LOG_LEVEL_TRACE - Logs that contain the most detailed messages. These messages may contain sensitive application data. These messages are disabled by default and should never be enabled in a production environment.
LOG_LEVEL_WARNING - Logs that highlight an abnormal or unexpected event in the application flow, but do not otherwise cause the application execution to stop.
Possible log levels.