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# Setup
INSTALL PLUGIN connection_control SONAME 'CONNECTION_CONTROL_LIB';
INSTALL PLUGIN connection_control_failed_login_attempts SONAME 'CONNECTION_CONTROL_LIB';
SET @@global.connection_control_failed_connections_threshold = 1;
SET @@global.connection_control_min_connection_delay = 1230;
SET @@global.connection_control_max_connection_delay = 1230;
# Not delayed connection
connect(localhost,u,,test,SOURCE_PORT,SOURCE_SOCKET);
ERROR 28000: Access denied for user 'u'@'localhost' (using password: NO)
# Delayed connection
connect(localhost,u,,test,SOURCE_PORT,SOURCE_SOCKET);
ERROR 28000: Access denied for user 'u'@'localhost' (using password: NO)
# The stage event should be in the history, the timer wait must be slightly bigger
# than configured connection delay, assume not more than 1/10 sec is good approximation,
# so the below must be 0
SELECT FLOOR((TIMER_WAIT/100000000000 - @@connection_control_min_connection_delay/100)) from performance_schema.events_stages_history_long WHERE EVENT_NAME LIKE 'stage/conn_delay/Waiting in connection_control plugin';
FLOOR((TIMER_WAIT/100000000000 - @@connection_control_min_connection_delay/100))
0
# Cleanup
# Uninstall connection_control plugin
UNINSTALL PLUGIN connection_control;
UNINSTALL PLUGIN connection_control_failed_login_attempts;
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