Returns YES or NO to indicate whether a given Performance Schema consumer is enabled, or NULL if the argument is NULL. If the argument is not a valid consumer name, an error occurs. (Prior to MySQL 5.7.28, the function returns NULL if the argument is not a valid consumer name.)

This function accounts for the consumer hierarchy, so a consumer is not considered enabled unless all consumers on which depends are also enabled. For information about the consumer hierarchy, see Section 25.4.7, “Pre-Filtering by Consumer”.

mysql> SELECT sys.ps_is_consumer_enabled('thread_instrumentation');
+------------------------------------------------------+
| sys.ps_is_consumer_enabled('thread_instrumentation') |
+------------------------------------------------------+
| YES                                                  |
+------------------------------------------------------+