config root man

drop table if exists t1,t2,t3,t4,t5,t6;
#
# Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
#             corrupts a MERGE table
# Problem #3
#
CREATE TABLE t1 (c1 INT) ENGINE= MyISAM;
LOCK TABLE t1 WRITE;
# connection con1
SET SESSION debug="+d,sleep_open_and_lock_after_open";
INSERT INTO t1 VALUES (1);
# connection default
# Let INSERT go into thr_multi_lock().
# Kick INSERT out of thr_multi_lock().
FLUSH TABLES;
# Let INSERT go through open_tables() where it sleeps.
# Unlock and close table and wait for con1 to close too.
FLUSH TABLES;
# This should give no result.
SELECT * FROM t1;
c1
UNLOCK TABLES;
# connection con1
SET SESSION debug="-d,sleep_open_and_lock_after_open";
# connection default
DROP TABLE t1;