SET GLOBAL innodb_flush_log_at_trx_commit= 1;
RESET MASTER;
CREATE TABLE t1 (a INT PRIMARY KEY, b MEDIUMTEXT) ENGINE=Innodb;
*** Test that FLUSH LOGS waits if a transaction ordered commit is in progress.
connect con1,localhost,root,,;
SET DEBUG_SYNC= "commit_before_get_LOCK_commit_ordered SIGNAL con1_ready WAIT_FOR con1_go";
INSERT INTO t1 VALUES (1, REPEAT("x", 1));
connection default;
SET DEBUG_SYNC= "now WAIT_FOR con1_ready";
SET DEBUG_SYNC= "rotate_after_rotate SIGNAL con_flush_ready WAIT_FOR default_go";
FLUSH LOGS;
connect con2,localhost,root,,;
Trx_1 is not yet committed:
SELECT count(*) as 'ZERO' from t1;
ZERO
0
Wait for Trx_2 has rotated binlog:
SET DEBUG_SYNC= "now WAIT_FOR con_flush_ready";
SET DEBUG_SYNC= "now SIGNAL default_go";
# restart
connection default;
Must be tree logs in the list:
show binary logs;
Log_name	File_size
master-bin.000001	#
master-bin.000002	#
master-bin.000003	#
include/show_binlog_events.inc
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000001	#	Format_desc	#	#	SERVER_VERSION, BINLOG_VERSION
master-bin.000001	#	Gtid_list	#	#	[]
master-bin.000001	#	Binlog_checkpoint	#	#	master-bin.000001
master-bin.000001	#	Gtid	#	#	GTID #-#-#
master-bin.000001	#	Query	#	#	use `test`; CREATE TABLE t1 (a INT PRIMARY KEY, b MEDIUMTEXT) ENGINE=Innodb
master-bin.000001	#	Gtid	#	#	BEGIN GTID #-#-#
master-bin.000001	#	Annotate_rows	#	#	INSERT INTO t1 VALUES (1, REPEAT("x", 1))
master-bin.000001	#	Table_map	#	#	table_id: # (test.t1)
master-bin.000001	#	Write_rows_v1	#	#	table_id: # flags: STMT_END_F
master-bin.000001	#	Xid	#	#	COMMIT /* XID */
master-bin.000001	#	Rotate	#	#	master-bin.000002;pos=POS
Only one Binlog checkpoint must exist and point to master-bin.000001
include/show_binlog_events.inc
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000002	#	Format_desc	#	#	SERVER_VERSION, BINLOG_VERSION
master-bin.000002	#	Gtid_list	#	#	[#-#-#]
master-bin.000002	#	Binlog_checkpoint	#	#	master-bin.000001
SELECT count(*) as 'ONE' from t1;
ONE
1
connection default;
DROP TABLE t1;
SET debug_sync = 'reset';