MDEV-32897 main suite test case prints extra row for metadata_lock_info query

- Added the parameter stats_persistent=0 for InnoDB engine.
- Before printing metadata_lock_info query, make sure that
InnoDB does complete purging.

Reviewed by: Marko Mäkelä

mysql-test/main/backup_interaction.result

+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 #
 # Check backup and FTWRL
 #
@@ -95,7 +97,7 @@ drop table t1;
 #
 # BACKUP STAGE performs implicit commits
 #
-create table t1(a int) engine=InnoDB;
+create table t1(a int) stats_persistent=0, engine=InnoDB;
 begin;
 insert into t1 values(1);
 select lock_mode from information_schema.metadata_lock_info;
@@ -197,8 +199,9 @@ drop table t1;
 # CHECK: RO transaction under BACKUP STAGE is a potential deadlock
 # OTOH we most probably allow them under FTWRL as well
 #
-CREATE TABLE t1 (col1 INT) ENGINE = InnoDB;
+CREATE TABLE t1 (col1 INT)stats_persistent=0, ENGINE = InnoDB;
 insert into t1 values (1);
+InnoDB		0 transactions not purged
 backup stage start;
 backup stage block_commit;
 begin;
@@ -526,3 +529,4 @@ FLUSH TABLE t1 WITH READ LOCK;
 ERROR HY000: Can't execute the command as you have a BACKUP STAGE active
 BACKUP STAGE END;
 DROP TABLE t1;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

mysql-test/main/backup_interaction.test

@@ -5,6 +5,9 @@
 --source include/have_innodb.inc
 --source include/have_metadata_lock_info.inc
 
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
+
 --echo #
 --echo # Check backup and FTWRL
 --echo #
@@ -120,7 +123,7 @@ drop table t1;
 --echo # BACKUP STAGE performs implicit commits
 --echo #
 --disable_view_protocol
-create table t1(a int) engine=InnoDB;
+create table t1(a int) stats_persistent=0, engine=InnoDB;
 begin;
 insert into t1 values(1);
 select lock_mode from information_schema.metadata_lock_info;
@@ -221,8 +224,9 @@ drop table t1;
 --echo # OTOH we most probably allow them under FTWRL as well
 --echo #
 --disable_view_protocol
-CREATE TABLE t1 (col1 INT) ENGINE = InnoDB;
+CREATE TABLE t1 (col1 INT)stats_persistent=0, ENGINE = InnoDB;
 insert into t1 values (1);
+--source ../suite/innodb/include/wait_all_purged.inc
 backup stage start;
 backup stage block_commit;
 begin;
@@ -521,3 +525,4 @@ FLUSH TABLE t1 FOR EXPORT;
 FLUSH TABLE t1 WITH READ LOCK;
 BACKUP STAGE END;
 DROP TABLE t1;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

mysql-test/main/backup_lock.result

 #
 # Testing which locks we get from all stages
 #
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
+InnoDB		0 transactions not purged
 BACKUP STAGE START;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
@@ -29,7 +32,8 @@ connection default;
 #
 # testing if BACKUP STAGE FLUSH causes deadlocks with ALTER TABLE
 #
-create table t1 (a int) engine=innodb;
+create table t1 (a int) stats_persistent= 0, engine=innodb;
+InnoDB		0 transactions not purged
 start transaction;
 insert into t1 values (1);
 connection con1;
@@ -95,7 +99,8 @@ drop table t1;
 #
 # testing if BACKUP STAGE FLUSH causes deadlocks with DROP TABLE
 #
-create table t1 (a int) engine=innodb;
+create table t1 (a int)stats_persistent=0, engine=innodb;
+InnoDB		0 transactions not purged
 start transaction;
 insert into t1 values (1);
 connection con1;
@@ -122,6 +127,7 @@ connection default;
 # Check if backup stage block_dll + concurrent drop table blocks select
 #
 create table t1 (a int) engine=innodb;
+InnoDB		0 transactions not purged
 backup stage start;
 backup stage block_ddl;
 connection con1;
@@ -217,3 +223,4 @@ DROP TABLE t_permanent_myisam, t_permanent_innodb;
 DROP TABLE t_con1_innodb, t_con1_myisam;
 disconnect con1;
 set global lock_wait_timeout=default;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

mysql-test/main/backup_lock.test

@@ -12,6 +12,9 @@
 --echo # Testing which locks we get from all stages
 --echo #
 
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
+--source ../suite/innodb/include/wait_all_purged.inc
 BACKUP STAGE START;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 BACKUP STAGE FLUSH;
@@ -36,8 +39,8 @@ connection default;
 --echo # testing if BACKUP STAGE FLUSH causes deadlocks with ALTER TABLE
 --echo #
 
-create table t1 (a int) engine=innodb;
-
+create table t1 (a int) stats_persistent= 0, engine=innodb;
+--source ../suite/innodb/include/wait_all_purged.inc
 start transaction;
 # Acquires MDL lock
 insert into t1 values (1);
@@ -123,7 +126,8 @@ drop table t1;
 --echo # testing if BACKUP STAGE FLUSH causes deadlocks with DROP TABLE
 --echo #
 
-create table t1 (a int) engine=innodb;
+create table t1 (a int)stats_persistent=0, engine=innodb;
+--source ../suite/innodb/include/wait_all_purged.inc
 start transaction;
 # Acquires MDL lock
 insert into t1 values (1);
@@ -159,6 +163,7 @@ connection default;
 --echo #
 
 create table t1 (a int) engine=innodb;
+--source ../suite/innodb/include/wait_all_purged.inc
 backup stage start;
 backup stage block_ddl;
 connection con1;
@@ -284,3 +289,4 @@ DROP TABLE t_permanent_myisam, t_permanent_innodb;
 DROP TABLE t_con1_innodb, t_con1_myisam;
 --disconnect con1
 set global lock_wait_timeout=default;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

mysql-test/main/backup_locks.result

 #
 # Test lock taken
 #
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
+InnoDB		0 transactions not purged
 BACKUP LOCK test.t1;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
@@ -23,7 +26,7 @@ BACKUP UNLOCK;
 #
 connect  con1,localhost,root,,;
 connection default;
-create table t1 (a int) engine=innodb;
+create table t1 (a int) stats_persistent=0,engine=innodb;
 insert into t1 values (1);
 backup lock t1;
 select * from t1;
@@ -32,6 +35,7 @@ a
 connection con1;
 drop table t1;
 connection default;
+InnoDB		0 transactions not purged
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
 MDL_SHARED_HIGH_PRIO	Table metadata lock	test	t1
@@ -93,6 +97,7 @@ BACKUP LOCK t1;
 ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
 UNLOCK TABLES;
 INSERT INTO t1 VALUES(0);
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
 # restart
 DROP TABLE t1;
 DROP TABLE t2;

mysql-test/main/backup_locks.test

@@ -10,7 +10,9 @@
 --echo #
 --echo # Test lock taken
 --echo #
-
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
+--source ../suite/innodb/include/wait_all_purged.inc
 BACKUP LOCK test.t1;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 BACKUP UNLOCK;
@@ -29,7 +31,7 @@ BACKUP UNLOCK;
 connect (con1,localhost,root,,);
 
 connection default;
-create table t1 (a int) engine=innodb;
+create table t1 (a int) stats_persistent=0,engine=innodb;
 insert into t1 values (1);
 backup lock t1;
 select * from t1;
@@ -40,6 +42,7 @@ let $wait_condition=
     select count(*) = 1 from information_schema.processlist
     where state = "Waiting for table metadata lock";
 --source include/wait_condition.inc
+--source ../suite/innodb/include/wait_all_purged.inc
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 --error ER_LOCK_DEADLOCK
 select * from t1;
@@ -107,6 +110,7 @@ LOCK TABLES t2 AS a2 WRITE;
 BACKUP LOCK t1;
 UNLOCK TABLES;
 INSERT INTO t1 VALUES(0);
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
 --source include/restart_mysqld.inc
 DROP TABLE t1;
 DROP TABLE t2;
@@ -187,7 +191,6 @@ LOCK TABLES t3 AS a2 WRITE, t3 AS a1 READ LOCAL;
 DROP TABLE t3;
 BACKUP UNLOCK;
 DROP TABLE t3;
-
 --echo #
 --echo #  MDEV-28367: BACKUP LOCKS on table to be accessible to those
 --echo #              with database LOCK TABLES privileges
@@ -260,7 +263,6 @@ disconnect con1;
 
 drop database db1;
 drop user user1@localhost;
-
 --echo #
 --echo # End of MariaDB 10.4 tests
 --echo #

mysql-test/main/backup_stages.result

+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 #-----------------------------------------------------------------------
 # Multi-threaded tests
 #-----------------------------------------------------------------------
@@ -17,6 +19,7 @@ FROM information_schema.processlist WHERE id = @con1_id;
 ID	USER	COMMAND	STATE	INFO	STAGE	MAX_STAGE	INFO_BINARY
 <con1_id>	root	Query	Waiting for backup lock	BACKUP STAGE START	0	0	BACKUP STAGE START
 BACKUP STAGE END;
+InnoDB		0 transactions not purged
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
 MDL_BACKUP_START	Backup lock		
@@ -333,3 +336,4 @@ disconnect con11;
 disconnect con12;
 disconnect backup;
 connection default;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

mysql-test/main/backup_stages.test

@@ -11,6 +11,8 @@
 # Save the initial number of concurrent sessions.
 --source include/count_sessions.inc
 
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 let $old_lock_wait_timeout = `SELECT @@global.lock_wait_timeout`;
 
 --echo #-----------------------------------------------------------------------
@@ -50,6 +52,7 @@ FROM information_schema.processlist WHERE id = @con1_id;
 # con1 uses @@global.lock_wait_timeout
 
 BACKUP STAGE END;
+--source ../suite/innodb/include/wait_all_purged.inc
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 
 --connection con1
@@ -383,3 +386,4 @@ SET GLOBAL lock_wait_timeout = $old_lock_wait_timeout;
 
 --connection default
 --source include/wait_until_count_sessions.inc
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

mysql-test/main/create_or_replace.result

 drop table if exists t1,t2,t3;
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 CREATE TABLE t2 (a int);
 INSERT INTO t2 VALUES(1),(2),(3);
 #
@@ -260,6 +262,7 @@ Note	1051	Unknown table 'mysqltest2.t2'
 create table test.t1 (i int) engine=myisam;
 create table mysqltest2.t2 like test.t1;
 lock table test.t1 write, mysqltest2.t2 write;
+InnoDB		0 transactions not purged
 select * from information_schema.metadata_lock_info;
 THREAD_ID	LOCK_MODE	LOCK_DURATION	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
 #	MDL_BACKUP_DDL	NULL	Backup lock		
@@ -576,6 +579,7 @@ CREATE TABLE tm (a INT) ENGINE=MERGE UNION(t);
 CREATE OR REPLACE TABLE t LIKE tm;
 ERROR HY000: Table 'tm' is specified twice, both as a target for 'CREATE' and as a separate source for data
 DROP TABLE IF EXISTS tm, t;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
 #
 # End of 10.3 tests
 #

mysql-test/main/create_or_replace.test

@@ -8,6 +8,8 @@
 drop table if exists t1,t2,t3;
 --enable_warnings
 
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 #
 # Create help table
 #
@@ -216,6 +218,7 @@ drop table if exists test.t1,mysqltest2.t2;
 create table test.t1 (i int) engine=myisam;
 create table mysqltest2.t2 like test.t1;
 lock table test.t1 write, mysqltest2.t2 write;
+--source ../suite/innodb/include/wait_all_purged.inc
 --replace_column 1 #
 --sorted_result
 select * from information_schema.metadata_lock_info;
@@ -523,6 +526,7 @@ CREATE OR REPLACE TABLE t LIKE tm;
 # Cleanup
 DROP TABLE IF EXISTS tm, t;
 
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
 --echo #
 --echo # End of 10.3 tests
 --echo #

mysql-test/main/mdl.result

@@ -5,8 +5,11 @@
 #                         mdl_ticket->m_type == MDL_SHARED_READ'
 #                         failed in MDL_context::upgrade_shared_lock
 #
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 CREATE TABLE t1(a INT) ENGINE=InnoDB;
 CREATE TABLE t3(a INT) ENGINE=myisam;
+InnoDB		0 transactions not purged
 LOCK TABLES t1 WRITE CONCURRENT, t1 AS t2 READ;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
@@ -56,7 +59,7 @@ DROP TABLE t1,t3;
 #
 # Check MDL locks taken for different kind of tables by open
 #
-CREATE TABLE t1(a INT) ENGINE=InnoDB;
+CREATE TABLE t1(a INT) stats_persistent=0, ENGINE=InnoDB;
 CREATE TABLE t3(a INT) ENGINE=myisam;
 connect  locker,localhost,root,,;
 connection default;
@@ -64,6 +67,7 @@ FLUSH TABLES WITH READ LOCK;
 connection locker;
 insert into t1 values (1);
 connection default;
+InnoDB		0 transactions not purged
 connection default;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
@@ -77,6 +81,7 @@ FLUSH TABLES WITH READ LOCK;
 connection locker;
 insert into t3 values (2);
 connection default;
+InnoDB		0 transactions not purged
 connection default;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
@@ -129,6 +134,7 @@ disconnect foo;
 connection default;
 set autocommit=default;
 drop table t2;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
 #
 # End of 10.4 tests
 #

mysql-test/main/mdl.test

@@ -8,9 +8,12 @@
 --echo #                         mdl_ticket->m_type == MDL_SHARED_READ'
 --echo #                         failed in MDL_context::upgrade_shared_lock
 --echo #
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 --disable_service_connection
 CREATE TABLE t1(a INT) ENGINE=InnoDB;
 CREATE TABLE t3(a INT) ENGINE=myisam;
+--source ../suite/innodb/include/wait_all_purged.inc
 LOCK TABLES t1 WRITE CONCURRENT, t1 AS t2 READ;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 UNLOCK TABLES;
@@ -38,7 +41,7 @@ DROP TABLE t1,t3;
 --echo # Check MDL locks taken for different kind of tables by open
 --echo #
 
-CREATE TABLE t1(a INT) ENGINE=InnoDB;
+CREATE TABLE t1(a INT) stats_persistent=0, ENGINE=InnoDB;
 CREATE TABLE t3(a INT) ENGINE=myisam;
 connect (locker,localhost,root,,);
 connection default;
@@ -52,6 +55,7 @@ let $wait_condition=
   select count(*) > 0 from information_schema.processlist
   where state = "Waiting for backup lock";
 --source include/wait_condition.inc
+--source ../suite/innodb/include/wait_all_purged.inc
 connection default;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 unlock tables;
@@ -69,6 +73,7 @@ let $wait_condition=
   select count(*) > 0 from information_schema.processlist
   where state = "Waiting for backup lock";
 --source include/wait_condition.inc
+--source ../suite/innodb/include/wait_all_purged.inc
 connection default;
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 unlock tables;
@@ -121,7 +126,7 @@ connection default;
 set autocommit=default;
 drop table t2;
 --enable_view_protocol
-
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
 --echo #
 --echo # End of 10.4 tests
 --echo #

mysql-test/main/mdl_sync.result

 SET DEBUG_SYNC= 'RESET';
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 connect  con1,localhost,root,,test,,;
 connect  con2,localhost,root,,test,,;
 connect  con3,localhost,root,,test,,;
@@ -2514,6 +2516,7 @@ connection con2;
 SET DEBUG_SYNC= 'now WAIT_FOR table_opened';
 # Check that FLUSH must wait to get the GRL
 # and let DROP PROCEDURE continue
+InnoDB		0 transactions not purged
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
 MDL_BACKUP_DDL	Backup lock		
@@ -2538,7 +2541,7 @@ SET DEBUG_SYNC= 'RESET';
 # UPDATE should wait for FTWRL with non transactional table second
 #
 create table t1 (a int) engine=myisam;
-create table t2 (a int) engine=innodb;
+create table t2 (a int) stats_persistent=0, engine=innodb;
 insert into t1 values (1);
 insert into t2 values (1);
 SET DEBUG_SYNC= 'after_open_table_mdl_shared SIGNAL table_opened WAIT_FOR grlwait execute 2';
@@ -3124,3 +3127,4 @@ connection default;
 SET debug_sync='RESET';
 DROP TABLE t1;
 disconnect con1;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

mysql-test/main/mdl_sync.test

@@ -16,6 +16,8 @@
 SET DEBUG_SYNC= 'RESET';
 --enable_warnings
 
+SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
+SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
 #
 # Test the case of when a exclusive lock request waits for a
 # shared lock being upgraded to a exclusive lock.
@@ -3249,6 +3251,7 @@ connection con2;
 SET DEBUG_SYNC= 'now WAIT_FOR table_opened';
 --echo # Check that FLUSH must wait to get the GRL
 --echo # and let DROP PROCEDURE continue
+--source ../suite/innodb/include/wait_all_purged.inc
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 SET DEBUG_SYNC= 'mdl_acquire_lock_wait SIGNAL grlwait';
 --send FLUSH TABLES WITH READ LOCK
@@ -3274,7 +3277,7 @@ SET DEBUG_SYNC= 'RESET';
 --echo #
 
 create table t1 (a int) engine=myisam;
-create table t2 (a int) engine=innodb;
+create table t2 (a int) stats_persistent=0, engine=innodb;
 insert into t1 values (1);
 insert into t2 values (1);
 
@@ -4175,3 +4178,4 @@ disconnect con1;
 # Check that all connections opened by test cases in this file are really
 # gone so execution of other tests won't be affected by their presence.
 --source include/wait_until_count_sessions.inc
+SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;