7.4.2.4 Types of Error Log Filtering

Error log configuration normally includes one log filter component and one or more log sink components. For error log filtering, MySQL offers a choice of components:

• log_filter_internal: This filter component provides error log filtering based on log event priority and error code, in combination with the log_error_verbosity and log_error_suppression_list system variables. log_filter_internal is built in and enabled by default. See Section 7.4.2.5, “Priority-Based Error Log Filtering (log_filter_internal)”.

• log_filter_dragnet: This filter component provides error log filtering based on user-supplied rules, in combination with the dragnet.log_error_filter_rules system variable. See Section 7.4.2.6, “Rule-Based Error Log Filtering (log_filter_dragnet)”.