install plugin feedback soname 'feedback.so'; select plugin_status from information_schema.plugins where plugin_name='feedback'; plugin_status ACTIVE select * from information_schema.feedback where variable_name like 'feed%' and variable_name not like '%_uid' and variable_name not like '%debug%'; VARIABLE_NAME VARIABLE_VALUE FEEDBACK used 2 FEEDBACK version 1.1 FEEDBACK_HTTP_PROXY FEEDBACK_SEND_RETRY_WAIT 60 FEEDBACK_SEND_TIMEOUT 60 FEEDBACK_URL http://feedback.mariadb.org/rest/v1/post FEEDBACK_USER_INFO mysql-test uninstall plugin feedback;