MySQL 9.5 Reference Manual Including MySQL NDB Cluster 9.5
The setup_loggers table lists the
registered loggers:
mysql> select * from performance_schema.setup_loggers;
+------------------------+-------+--------------------+
| NAME | LEVEL | DESCRIPTION |
+------------------------+-------+--------------------+
| logger/error/error_log | info | MySQL error logger |
+------------------------+-------+--------------------+
NAME: The name of the logger.
LEVEL: The log level. This can be set
to one of the following values:
none
error
warn
info
debug
DESCRIPTION: A text description of the
logger.