--source include/have_innodb.inc
--source include/have_perfschema.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc
--source include/not_embedded.inc

select count_star into @init_count from performance_schema.events_waits_summary_global_by_event_name WHERE event_name LIKE '%wait%io%file%innodb%innodb_temp_file%';
connect (ddl, localhost, root,,);
update performance_schema.setup_instruments set enabled='yes';
update performance_schema.setup_consumers set enabled='yes';
CREATE TABLE t1 (a serial, b varchar(255)) ENGINE=InnoDB;

BEGIN;
let $n=247;
--disable_query_log
while ($n) {
dec $n;
INSERT INTO t1 SELECT NULL, REPEAT('b',255);
}
--enable_query_log
COMMIT;

SET DEBUG_SYNC = 'row_log_apply_before SIGNAL go WAIT_FOR gone';
send ALTER TABLE t1 ADD INDEX(b), ALGORITHM=INPLACE;

connection default;
SET DEBUG_SYNC = 'now WAIT_FOR go';

select count_star into @final_count from performance_schema.events_waits_summary_global_by_event_name WHERE event_name LIKE '%wait%io%file%innodb%innodb_temp_file%';

SELECT @final_count - @init_count;

#--exec lsof -p `pidof mysqld`
SET DEBUG_SYNC = 'now SIGNAL gone';

connection ddl;
reap;
disconnect ddl;

connection default;
SET DEBUG_SYNC = 'RESET';
DROP TABLE t1;