Last slice of fix for Bug#42003 tests missing the disconnect of connections <> default

+ Fix for Bug#43114 wait_until_count_sessions too restrictive, random PB failures + Removal of a lot of other weaknesses found + modifications according to review

Last slice of fix for Bug#42003 tests missing the disconnect of connections <> default
+ Fix for Bug#43114 wait_until_count_sessions too restrictive, random PB failures + Removal of a lot of other weaknesses found + modifications according to review
b771483b · Matthias Leich · 209cc336 · b771483b · b771483b · b771483b
Commit b771483b authored Mar 03, 2009 by Matthias Leich
39 changed files
--- a/mysql-test/include/wait_until_count_sessions.inc
+++ b/mysql-test/include/wait_until_count_sessions.inc
@@ -2,11 +2,20 @@
 #
 # SUMMARY
 #
-#    Waits until the passed number ($count_sessions) of concurrent sessions was
+#    Waits until the passed number ($count_sessions) of concurrent sessions or
-#    observed via
+#    a smaller number was observed via
 #       SHOW STATUS LIKE 'Threads_connected'
 #    or the operation times out.
-#    Note: Starting with 5.1 we could also use
+#    Note:
+#    1. We wait for $current_sessions <= $count_sessions because in the use case
+#       with count_sessions.inc before and wait_until_count_sessions.inc after
+#       the core of the test it could happen that the disconnects of sessions
+#       belonging to the preceeding test are not finished.
+#       sessions at test begin($count_sessions) =  m + n
+#       sessions of the previous test which will be soon disconnected = n (n >= 0)
+#       sessions at test end ($current sessions, assuming the test disconnects
+#          all additional sessions) = m
+#    2. Starting with 5.1 we could also use
 #       SELECT COUNT(*) FROM information_schema.processlist
 #       I stay with "SHOW STATUS LIKE 'Threads_connected'" because this
 #       runs in all versions 5.0+
@@ -19,7 +28,7 @@
 #
 #    OR typical example of a test which uses more than one session
 #       Such a test could harm successing tests if there is no server shutdown
-#       and start between.cw
+#       and start between.
 #
 #       If the testing box is slow than the disconnect of sessions belonging to
 #       the current test might happen when the successing test gets executed.
@@ -79,7 +88,11 @@
 #    backup.test, grant3.test
 #
 #
-# Created: 2009-01-14 mleich
+# Created:
+#    2009-01-14 mleich
+# Modified:
+#    2009-02-24 mleich Fix Bug#43114 wait_until_count_sessions too restrictive,
+#                                    random PB failures
 #
 let $wait_counter= 100;
@@ -93,7 +106,7 @@ let $wait_timeout= 0;
 while ($wait_counter)
 {
   let $current_sessions= query_get_value(SHOW STATUS LIKE 'Threads_connected', Value, 1);
-   let $success= `SELECT $current_sessions = $count_sessions`;
+   let $success= `SELECT $current_sessions <= $count_sessions`;
   if ($success)
   {
      let $wait_counter= 0;
@@ -107,7 +120,7 @@ while ($wait_counter)
 if (!$success)
 {
   --echo # Timeout in wait_until_count_sessions.inc
-   --echo # Number of sessions   expected: $count_sessions   found: $current_sessions
+   --echo # Number of sessions   expected: < $count_sessions   found: $current_sessions
   SHOW PROCESSLIST;
 }
--- a/mysql-test/r/consistent_snapshot.result
+++ b/mysql-test/r/consistent_snapshot.result
-drop table if exists t1;
+DROP TABLE IF EXISTS t1;
-create table t1 (a int) engine=innodb;
+# Establish connection con1 (user=root)
-start transaction with consistent snapshot;
+# Establish connection con2 (user=root)
-insert into t1 values(1);
+# Switch to connection con1
-select * from t1;
+CREATE TABLE t1 (a INT) ENGINE=innodb;
+START TRANSACTION WITH CONSISTENT SNAPSHOT;
+# Switch to connection con2
+INSERT INTO t1 VALUES(1);
+# Switch to connection con1
+SELECT * FROM t1;
 a
-commit;
+COMMIT;
-delete from t1;
+DELETE FROM t1;
-start transaction;
+START TRANSACTION;
-insert into t1 values(1);
+# Switch to connection con2
-select * from t1;
+INSERT INTO t1 VALUES(1);
+# Switch to connection con1
+SELECT * FROM t1;
 a
 1
-commit;
+COMMIT;
-drop table t1;
+# Switch to connection default + close connections con1 and con2
+DROP TABLE t1;
--- a/mysql-test/r/dirty_close.result
+++ b/mysql-test/r/dirty_close.result
-drop table if exists t1;
+DROP TABLE IF EXISTS t1;
-create table t1 (n int);
+CREATE TABLE t1 (n INT);
-insert into t1 values (1),(2),(3);
+INSERT INTO t1 VALUES (1),(2),(3);
-select * from t1;
+SELECT * FROM t1;
 n
 1
 2
 3
-drop table t1;
+DROP TABLE t1;
--- a/mysql-test/r/flush_block_commit.result
+++ b/mysql-test/r/flush_block_commit.result
-drop table if exists t1;
+# Establish connection con1 (user=root)
-create table t1 (a int) engine=innodb;
+# Establish connection con2 (user=root)
-begin;
+# Establish connection con3 (user=root)
-insert into t1 values(1);
+# Switch to connection con1
-flush tables with read lock;
+DROP TABLE IF EXISTS t1;
-select * from t1;
+CREATE TABLE t1 (a INT) ENGINE=innodb;
+BEGIN;
+INSERT INTO t1 VALUES(1);
+# Switch to connection con2
+FLUSH TABLES WITH READ LOCK;
+SELECT * FROM t1;
 a
-commit;
+# Switch to connection con1
-select * from t1;
+COMMIT;
+# Switch to connection con2
+SELECT * FROM t1;
 a
-unlock tables;
+UNLOCK TABLES;
-begin;
+# Switch to connection con1
-select * from t1 for update;
+# Switch to connection con1
+BEGIN;
+SELECT * FROM t1 FOR UPDATE;
 a
 1
-begin;
+# Switch to connection con2
-select * from t1 for update;
+BEGIN;
-flush tables with read lock;
+SELECT * FROM t1 FOR UPDATE;
-commit;
+# Switch to connection con3
+FLUSH TABLES WITH READ LOCK;
+# Switch to connection con1
+COMMIT;
+# Switch to connection con2
 a
 1
-unlock tables;
+# Switch to connection con3
-commit;
+UNLOCK TABLES;
-begin;
+# Switch to connection con2
-insert into t1 values(10);
+COMMIT;
-flush tables with read lock;
+# Switch to connection con1
-commit;
+BEGIN;
-unlock tables;
+INSERT INTO t1 VALUES(10);
-flush tables with read lock;
+FLUSH TABLES WITH READ LOCK;
-unlock tables;
+COMMIT;
-begin;
+UNLOCK TABLES;
-select * from t1;
+# Switch to connection con2
+FLUSH TABLES WITH READ LOCK;
+UNLOCK TABLES;
+BEGIN;
+SELECT * FROM t1;
 a
 1
 10
-show create database test;
+SHOW CREATE DATABASE test;
 Database	Create Database
 test	CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET latin1 */
-drop table t1;
+DROP TABLE t1;
+# Switch to connection default and close connections con1, con2, con3
--- a/mysql-test/r/flush_block_commit_notembedded.result
+++ b/mysql-test/r/flush_block_commit_notembedded.result
-create table t1 (a int) engine=innodb;
+# Establish connection con1 (user=root)
-reset master;
+# Establish connection con2 (user=root)
-set autocommit=0;
+# Switch to connection con1
-insert t1 values (1);
+CREATE TABLE t1 (a INT) ENGINE=innodb;
-flush tables with read lock;
+RESET MASTER;
-show master status;
+SET AUTOCOMMIT=0;
+INSERT t1 VALUES (1);
+# Switch to connection con2
+FLUSH TABLES WITH READ LOCK;
+SHOW MASTER STATUS;
 File	Position	Binlog_Do_DB	Binlog_Ignore_DB
 master-bin.000001	98		
-commit;
+# Switch to connection con1
-show master status;
+COMMIT;
+# Switch to connection con2
+SHOW MASTER STATUS;
 File	Position	Binlog_Do_DB	Binlog_Ignore_DB
 master-bin.000001	98		
-unlock tables;
+UNLOCK TABLES;
-drop table t1;
+# Switch to connection con1
-set autocommit=1;
+DROP TABLE t1;
+SET AUTOCOMMIT=1;
+# Switch to connection default and close connections con1 and con2
--- a/mysql-test/r/flush_read_lock_kill.result
+++ b/mysql-test/r/flush_read_lock_kill.result
-drop table if exists t1;
+SET @old_concurrent_insert= @@global.concurrent_insert;
-create table t1 (kill_id int);
+SET @@global.concurrent_insert= 0;
-insert into t1 values(connection_id());
+DROP TABLE IF EXISTS t1;
-flush tables with read lock;
+CREATE TABLE t1 (kill_id INT);
-select ((@id := kill_id) - kill_id) from t1;
+INSERT INTO t1 VALUES(connection_id());
+FLUSH TABLES WITH READ LOCK;
+SELECT ((@id := kill_id) - kill_id) FROM t1;
 ((@id := kill_id) - kill_id)
 0
-kill connection @id;
+KILL CONNECTION @id;
-drop table t1;
+DROP TABLE t1;
+SET @@global.concurrent_insert= @old_concurrent_insert;
--- a/mysql-test/r/lock_multi.result
+++ b/mysql-test/r/lock_multi.result
@@ -51,10 +51,10 @@ ERROR HY000: Can't execute the query because you have a conflicting read lock
 UNLOCK TABLES;
 DROP DATABASE mysqltest_1;
 ERROR HY000: Can't drop database 'mysqltest_1'; database doesn't exist
-use mysql;
+USE mysql;
 LOCK TABLES columns_priv WRITE, db WRITE, host WRITE, user WRITE;
 FLUSH TABLES;
-use mysql;
+USE mysql;
 SELECT user.Select_priv FROM user, db WHERE user.user = db.user LIMIT 1;
 OPTIMIZE TABLES columns_priv, db, host, user;
 Table	Op	Msg_type	Msg_text
@@ -65,7 +65,7 @@ mysql.user	optimize	status	OK
 UNLOCK TABLES;
 Select_priv
 N
-use test;
+USE test;
 use test;
 CREATE TABLE t1 (c1 int);
 LOCK TABLE t1 WRITE;
@@ -93,7 +93,7 @@ create table t1 (a int);
 connection: locker
 lock tables t1 read;
 connection: writer
-create table t2 like t1;;
+create table t2 like t1;
 connection: default
 kill query
 ERROR 70100: Query execution was interrupted

--- a/mysql-test/r/mysqlbinlog.result
+++ b/mysql-test/r/mysqlbinlog.result
@@ -349,17 +349,17 @@ DELIMITER ;
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
 CREATE TABLE t1 (c1 CHAR(10));
-flush logs;
+FLUSH LOGS;
 INSERT INTO t1 VALUES ('0123456789');
-flush logs;
+FLUSH LOGS;
 DROP TABLE t1;
 # 	Query	thread_id=REMOVED	exec_time=REMOVED	error_code=REMOVED
-flush logs;
+FLUSH LOGS;
-create table t1(a int);
+CREATE TABLE t1(a INT);
-insert into t1 values(connection_id());
+INSERT INTO t1 VALUES(connection_id());
-flush logs;
+FLUSH LOGS;
-drop table t1;
+DROP TABLE t1;
 1
-drop table t1;
+DROP TABLE t1;
 shell> mysqlbinlog std_data/corrupt-relay-bin.000624 > var/tmp/bug31793.sql
 End of 5.0 tests
--- a/mysql-test/r/read_only.result
+++ b/mysql-test/r/read_only.result
@@ -47,7 +47,7 @@ Note	1051	Unknown table 'ttt'
 drop table t1,t2;
 drop user test@localhost;
 #
-# Bug #27440 read_only allows create and drop database
+# Bug#27440 read_only allows create and drop database
 #
 drop database if exists mysqltest_db1;
 drop database if exists mysqltest_db2;

--- a/mysql-test/r/show_check.result
+++ b/mysql-test/r/show_check.result
--- a/mysql-test/r/skip_name_resolve.result
+++ b/mysql-test/r/skip_name_resolve.result
@@ -5,10 +5,10 @@ GRANT USAGE ON *.* TO 'mysqltest_1'@'127.0.0.1/255.255.255.255'
 GRANT ALL PRIVILEGES ON `test`.* TO 'mysqltest_1'@'127.0.0.1/255.255.255.255'
 REVOKE ALL ON test.* FROM mysqltest_1@'127.0.0.1/255.255.255.255';
 DROP USER mysqltest_1@'127.0.0.1/255.255.255.255';
-select user();
+SELECT USER();
-user()
+USER()
 #
-show processlist;
+SHOW PROCESSLIST;
 Id	User	Host	db	Command	Time	State	Info
 <id>	root	<host>	test	<command>	<time>	<state>	<info>
 <id>	root	<host>	test	<command>	<time>	<state>	<info>
--- a/mysql-test/r/sp-security.result
+++ b/mysql-test/r/sp-security.result
@@ -332,7 +332,7 @@ ERROR 42000: SELECT command denied to user 'user_bug14533'@'localhost' for table
 drop user user_bug14533@localhost;
 drop database db_bug14533;
 CREATE DATABASE db_bug7787;
-use db_bug7787;
+USE db_bug7787;
 CREATE PROCEDURE p1()
 SHOW INNODB STATUS;
 Warnings:
@@ -352,12 +352,12 @@ GRANT SUPER ON *.* TO mysqltest_2@localhost;
 GRANT ALL PRIVILEGES ON mysqltest.* TO mysqltest_2@localhost;
 ---> connection: mysqltest_2_con
-use mysqltest;
+USE mysqltest;
 CREATE PROCEDURE wl2897_p1() SELECT 1;
 CREATE FUNCTION wl2897_f1() RETURNS INT RETURN 1;
 ---> connection: mysqltest_1_con
-use mysqltest;
+USE mysqltest;
 CREATE DEFINER=root@localhost PROCEDURE wl2897_p2() SELECT 2;
 ERROR 42000: Access denied; you need the SUPER privilege for this operation
 CREATE DEFINER=root@localhost FUNCTION wl2897_f2() RETURNS INT RETURN 2;
@@ -373,7 +373,7 @@ Warnings:
 Note	1449	There is no 'a @ b @ c'@'localhost' registered
 ---> connection: con1root
-use mysqltest;
+USE mysqltest;
 SHOW CREATE PROCEDURE wl2897_p1;
 Procedure	sql_mode	Create Procedure
 wl2897_p1		CREATE DEFINER=`mysqltest_2`@`localhost` PROCEDURE `wl2897_p1`()
@@ -403,7 +403,7 @@ CREATE USER mysqltest_2@localhost;
 GRANT ALL PRIVILEGES ON mysqltest.* TO mysqltest_2@localhost;
 ---> connection: mysqltest_1_con
-use mysqltest;
+USE mysqltest;
 CREATE PROCEDURE bug13198_p1()
 SELECT 1;
 CREATE FUNCTION bug13198_f1() RETURNS INT
@@ -416,7 +416,7 @@ bug13198_f1()
 1
 ---> connection: mysqltest_2_con
-use mysqltest;
+USE mysqltest;
 CALL bug13198_p1();
 1
 1
@@ -428,7 +428,7 @@ bug13198_f1()
 DROP USER mysqltest_1@localhost;
 ---> connection: mysqltest_2_con
-use mysqltest;
+USE mysqltest;
 CALL bug13198_p1();
 ERROR HY000: There is no 'mysqltest_1'@'localhost' registered
 SELECT bug13198_f1();
@@ -445,7 +445,7 @@ Host	User	Password
 localhost	user19857	*82DC221D557298F6CE9961037DB1C90604792F5C
 ---> connection: mysqltest_2_con
-use test;
+USE test;
 CREATE PROCEDURE sp19857() DETERMINISTIC
 BEGIN
 DECLARE a INT;

--- a/mysql-test/r/view.result
+++ b/mysql-test/r/view.result
@@ -3603,7 +3603,7 @@ DROP VIEW v2;
 DROP VIEW v3;
 DROP TABLE t1;
 #
-# Bug#29477: Not all fields of the target table were checked to have
+# Bug#29477 Not all fields of the target table were checked to have
 #           a default value when inserting into a view.
 #
 create table t1(f1 int, f2 int not null);
@@ -3643,7 +3643,7 @@ MAX(a)	COUNT(DISTINCT a)
 DROP VIEW v1;
 DROP TABLE t1;
 # -----------------------------------------------------------------
-# -- Bug#34337: Server crash when Altering a view using a table name.
+# -- Bug#34337 Server crash when Altering a view using a table name.
 # -----------------------------------------------------------------
 DROP TABLE IF EXISTS t1;
@@ -3660,7 +3660,7 @@ DROP TABLE t1;
 # -- End of test case for Bug#34337.
 # -----------------------------------------------------------------
-# -- Bug#35193: VIEW query is rewritten without "FROM DUAL",
+# -- Bug#35193 VIEW query is rewritten without "FROM DUAL",
 # --           causing syntax error
 # -----------------------------------------------------------------

--- a/mysql-test/r/view_grant.result
+++ b/mysql-test/r/view_grant.result
@@ -788,7 +788,7 @@ v3	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VI
 DROP USER u26813@localhost;
 DROP DATABASE db26813;
 #
-# Bug#29908: A user can gain additional access through the ALTER VIEW.
+# Bug#29908 A user can gain additional access through the ALTER VIEW.
 #
 CREATE DATABASE mysqltest_29908;
 USE mysqltest_29908;

--- a/mysql-test/t/alter_table-big.test
+++ b/mysql-test/t/alter_table-big.test
-# In order to be more or less robust test for bug#25044 has to take
+# In order to be more or less robust test for Bug#25044 has to take
 # significant time (e.g. about 9 seconds on my (Dmitri's) computer)
 # so we probably want execute it only in --big-test mode.
 # Also in 5.1 this test will require statement-based binlog.
@@ -6,8 +6,8 @@
 #
-# Test for bug #25044 "ALTER TABLE ... ENABLE KEYS acquires global
+# Test for Bug#25044 ALTER TABLE ... ENABLE KEYS acquires global
-# 'opening tables' lock".
+#                    'opening tables' lock
 #
 # ALTER TABLE ... ENABLE KEYS should not acquire LOCK_open mutex for
 # the whole its duration as it prevents other queries from execution.
@@ -57,6 +57,7 @@ show binlog events in 'master-bin.000001' from 98;
 # Clean up
 drop tables t1, t2;
+disconnect addconroot;
 --echo End of 5.0 tests
--- a/mysql-test/t/connect.test
+++ b/mysql-test/t/connect.test
@@ -18,12 +18,16 @@ connect (con2,localhost,root,,test);
 show tables;
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,root,z,test2);
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,root,z,);
+connection default;
+disconnect con1;
+disconnect con2;
 grant ALL on *.* to test@localhost identified by "gambling";
 grant ALL on *.* to test@127.0.0.1 identified by "gambling";
@@ -35,20 +39,23 @@ show tables;
 connect (con4,localhost,test,gambling,test);
 show tables;
+connection default;
+disconnect con3;
+disconnect con4;
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,,test2);
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,,"");
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,zorro,test2);
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,zorro,);
 # check if old password version also works
 update mysql.user set password=old_password("gambling2") where user=_binary"test";
 flush privileges;
@@ -57,30 +64,34 @@ connect (con10,localhost,test,gambling2,);
 connect (con5,localhost,test,gambling2,mysql);
 connection con5;
 set password="";
--error 1372
+--error ER_PASSWD_LENGTH
 set password='gambling3';
 set password=old_password('gambling3');
 show tables;
 connect (con6,localhost,test,gambling3,test);
 show tables;
+connection default;
+disconnect con10;
+disconnect con5;
+disconnect con6;
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,,test2);
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,,);
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,zorro,test2);
 --replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT
--error 1045
+--error ER_ACCESS_DENIED_ERROR
 connect (fail_con,localhost,test,zorro,);
 # remove user 'test' so that other tests which may use 'test'
 # do not depend on this test.
 delete from mysql.user where user=_binary"test";
 flush privileges;
@@ -98,4 +109,9 @@ disconnect con7;
 connection default;
 drop table t1;
+--disconnect con1
+--disconnect con2
+--disconnect con3
+--disconnect con4
 # End of 4.1 tests
--- a/mysql-test/t/consistent_snapshot.test
+++ b/mysql-test/t/consistent_snapshot.test
-- source include/have_innodb.inc
+--source include/have_innodb.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 --disable_warnings
-drop table if exists t1;
+DROP TABLE IF EXISTS t1;
 --enable_warnings
+--echo # Establish connection con1 (user=root)
 connect (con1,localhost,root,,);
+--echo # Establish connection con2 (user=root)
 connect (con2,localhost,root,,);
 ### Test 1:
 ### - While a consistent snapshot transaction is executed,
 ###   no external inserts should be visible to the transaction.
+--echo # Switch to connection con1
 connection con1;
-create table t1 (a int) engine=innodb;
+CREATE TABLE t1 (a INT) ENGINE=innodb;
-start transaction with consistent snapshot;
+START TRANSACTION WITH CONSISTENT SNAPSHOT;
+--echo # Switch to connection con2
 connection con2;
-insert into t1 values(1);
+INSERT INTO t1 VALUES(1);
+--echo # Switch to connection con1
 connection con1;
-select * from t1; # if consistent snapshot was set as expected, we
+SELECT * FROM t1; # if consistent snapshot was set as expected, we
 # should see nothing.
-commit;
+COMMIT;
 ### Test 2:
 ### - For any non-consistent snapshot transaction, external
 ###   committed inserts should be visible to the transaction.
-delete from t1;
+DELETE FROM t1;
-start transaction; # Now we omit WITH CONSISTENT SNAPSHOT
+START TRANSACTION; # Now we omit WITH CONSISTENT SNAPSHOT
+--echo # Switch to connection con2
 connection con2;
-insert into t1 values(1);
+INSERT INTO t1 VALUES(1);
+--echo # Switch to connection con1
 connection con1;
-select * from t1; # if consistent snapshot was not set, as expected, we
+SELECT * FROM t1; # if consistent snapshot was not set, as expected, we
 # should see 1.
-commit;
+COMMIT;
-drop table t1;
+--echo # Switch to connection default + close connections con1 and con2
+connection default;
+disconnect con1;
+disconnect con2;
+DROP TABLE t1;
 # End of 4.1 tests
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/dirty_close.test
+++ b/mysql-test/t/dirty_close.test
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 connect (con1,localhost,root,,);
 connect (con2,localhost,root,,);
 connection con1;
@@ -5,12 +9,19 @@ dirty_close con1;
 connection con2;
 --disable_warnings
-drop table if exists t1;
+DROP TABLE IF EXISTS t1;
 --enable_warnings
-create table t1 (n int);
+CREATE TABLE t1 (n INT);
-insert into t1 values (1),(2),(3);
+INSERT INTO t1 VALUES (1),(2),(3);
-select * from t1;
+SELECT * FROM t1;
-drop table t1;
+DROP TABLE t1;
+connection default;
+disconnect con2;
 # End of 4.1 tests
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/flush_block_commit.test
+++ b/mysql-test/t/flush_block_commit.test
@@ -4,74 +4,106 @@
 # This is intended to mimick how mysqldump and innobackup work.
 # And it requires InnoDB
-- source include/have_innodb.inc
+--source include/have_innodb.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
+--echo # Establish connection con1 (user=root)
 connect (con1,localhost,root,,);
+--echo # Establish connection con2 (user=root)
 connect (con2,localhost,root,,);
+--echo # Establish connection con3 (user=root)
 connect (con3,localhost,root,,);
+--echo # Switch to connection con1
 connection con1;
 --disable_warnings
-drop table if exists t1;
+DROP TABLE IF EXISTS t1;
 --enable_warnings
-create table t1 (a int) engine=innodb;
+CREATE TABLE t1 (a INT) ENGINE=innodb;
 # blocks COMMIT ?
-begin;
+BEGIN;
-insert into t1 values(1);
+INSERT INTO t1 VALUES(1);
+--echo # Switch to connection con2
 connection con2;
-flush tables with read lock;
+FLUSH TABLES WITH READ LOCK;
-select * from t1;
+SELECT * FROM t1;
+--echo # Switch to connection con1
 connection con1;
-send commit; # blocked by con2
+send COMMIT; # blocked by con2
 sleep 1;
+--echo # Switch to connection con2
 connection con2;
-select * from t1; # verify con1 was blocked and data did not move
+SELECT * FROM t1; # verify con1 was blocked and data did not move
-unlock tables;
+UNLOCK TABLES;
+--echo # Switch to connection con1
 connection con1;
 reap;
 # No deadlock ?
+--echo # Switch to connection con1
 connection con1;
-begin;
+BEGIN;
-select * from t1 for update;
+SELECT * FROM t1 FOR UPDATE;
+--echo # Switch to connection con2
 connection con2;
-begin;
+BEGIN;
-send select * from t1 for update; # blocked by con1
+send SELECT * FROM t1 FOR UPDATE; # blocked by con1
 sleep 1;
+--echo # Switch to connection con3
 connection con3;
-send flush tables with read lock; # blocked by con2
+send FLUSH TABLES WITH READ LOCK; # blocked by con2
+--echo # Switch to connection con1
 connection con1;
-commit; # should not be blocked by con3
+COMMIT; # should not be blocked by con3
+--echo # Switch to connection con2
 connection con2;
 reap;
+--echo # Switch to connection con3
 connection con3;
 reap;
-unlock tables;
+UNLOCK TABLES;
-# BUG#6732 FLUSH TABLES WITH READ LOCK + COMMIT hangs later FLUSH TABLES
+# Bug#6732 FLUSH TABLES WITH READ LOCK + COMMIT hangs later FLUSH TABLES
 #          WITH READ LOCK
+--echo # Switch to connection con2
 connection con2;
-commit; # unlock InnoDB row locks to allow insertions
+COMMIT; # unlock InnoDB row locks to allow insertions
+--echo # Switch to connection con1
 connection con1;
-begin;
+BEGIN;
-insert into t1 values(10);
+INSERT INTO t1 VALUES(10);
-flush tables with read lock;
+FLUSH TABLES WITH READ LOCK;
-commit;
+COMMIT;
-unlock tables;
+UNLOCK TABLES;
+--echo # Switch to connection con2
 connection con2;
-flush tables with read lock; # bug caused hang here
+FLUSH TABLES WITH READ LOCK; # bug caused hang here
-unlock tables;
+UNLOCK TABLES;
+# Bug#7358 SHOW CREATE DATABASE fails if open transaction
+BEGIN;
+SELECT * FROM t1;
+SHOW CREATE DATABASE test;
-# BUG#7358 SHOW CREATE DATABASE fails if open transaction
+DROP TABLE t1;
-begin;
-select * from t1;
-show create database test;
-drop table t1;
+# Cleanup
+--echo # Switch to connection default and close connections con1, con2, con3
+connection default;
+disconnect con1;
+disconnect con2;
+disconnect con3;
 # End of 4.1 tests
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/flush_block_commit_notembedded.test
+++ b/mysql-test/t/flush_block_commit_notembedded.test
@@ -3,32 +3,51 @@
 # We verify that we did not introduce a deadlock.
 # This is intended to mimick how mysqldump and innobackup work.
-- source include/have_log_bin.inc
+--source include/have_log_bin.inc
 # And it requires InnoDB
-- source include/have_log_bin.inc
+--source include/have_log_bin.inc
-- source include/have_innodb.inc
+--source include/have_innodb.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
+--echo # Establish connection con1 (user=root)
 connect (con1,localhost,root,,);
+--echo # Establish connection con2 (user=root)
 connect (con2,localhost,root,,);
 # FLUSH TABLES WITH READ LOCK should block writes to binlog too
+--echo # Switch to connection con1
 connection con1;
-create table t1 (a int) engine=innodb;
+CREATE TABLE t1 (a INT) ENGINE=innodb;
-reset master;
+RESET MASTER;
-set autocommit=0;
+SET AUTOCOMMIT=0;
-insert t1 values (1);
+INSERT t1 VALUES (1);
+--echo # Switch to connection con2
 connection con2;
-flush tables with read lock;
+FLUSH TABLES WITH READ LOCK;
-show master status;
+SHOW MASTER STATUS;
+--echo # Switch to connection con1
 connection con1;
-send commit;
+send COMMIT;
+--echo # Switch to connection con2
 connection con2;
 sleep 1;
-show master status;
+SHOW MASTER STATUS;
-unlock tables;
+UNLOCK TABLES;
+--echo # Switch to connection con1
 connection con1;
 reap;
-drop table t1;
+DROP TABLE t1;
-set autocommit=1;
+SET AUTOCOMMIT=1;
+--echo # Switch to connection default and close connections con1 and con2
+connection default;
+disconnect con1;
+disconnect con2;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/flush_read_lock_kill.test
+++ b/mysql-test/t/flush_read_lock_kill.test
@@ -8,19 +8,27 @@
 # won't test anything interesting).
 # This also won't work with the embedded server test
-- source include/not_embedded.inc
+--source include/not_embedded.inc
-- source include/have_debug.inc
+--source include/have_debug.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
+# Disable concurrent inserts to avoid test failures when reading the
+# connection id which was inserted into a table by another thread.
+SET @old_concurrent_insert= @@global.concurrent_insert;
+SET @@global.concurrent_insert= 0;
 connect (con1,localhost,root,,);
 connect (con2,localhost,root,,);
 connection con1;
 --disable_warnings
-drop table if exists t1;
+DROP TABLE IF EXISTS t1;
 --enable_warnings
-create table t1 (kill_id int);
+CREATE TABLE t1 (kill_id INT);
-insert into t1 values(connection_id());
+INSERT INTO t1 VALUES(connection_id());
 # Thanks to the parameter we passed to --debug, this FLUSH will
 # block on a debug build running with our --debug=make_global... It
@@ -28,14 +36,14 @@ insert into t1 values(connection_id());
 # --debug) it will succeed immediately
 connection con1;
-send flush tables with read lock;
+send FLUSH TABLES WITH READ LOCK;
 # kill con1
 connection con2;
-select ((@id := kill_id) - kill_id) from t1; 
+SELECT ((@id := kill_id) - kill_id) FROM t1;
 --sleep 2 # leave time for FLUSH to block
-kill connection @id;
+KILL CONNECTION @id;
 connection con1;
 # On debug builds it will be error 1053 (killed); on non-debug, or
@@ -46,4 +54,13 @@ connection con1;
 reap;
 connection con2;
-drop table t1;
+DROP TABLE t1;
+connection default;
+disconnect con2;
+# Restore global concurrent_insert value
+SET @@global.concurrent_insert= @old_concurrent_insert;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/init_connect.test
+++ b/mysql-test/t/init_connect.test
@@ -5,6 +5,9 @@
 # should work with embedded server after mysqltest is fixed
 --source include/not_embedded.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 --source include/add_anonymous_users.inc
 connect (con0,localhost,root,,);
@@ -233,7 +236,8 @@ connect (con1,localhost,mysqltest1,,);
 connection con1;
 select * from t1;
-connection con0;
+connection default;
+disconnect con0;
 disconnect con1;
 drop trigger trg1;
@@ -244,3 +248,7 @@ set global init_connect="set @a='a\\0c'";
 revoke all privileges, grant option from mysqltest1@localhost;
 drop user mysqltest1@localhost;
 drop table t1, t2;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/lock_multi.test
+++ b/mysql-test/t/lock_multi.test
--- a/mysql-test/t/mysqlbinlog.test
+++ b/mysql-test/t/mysqlbinlog.test
@@ -104,7 +104,7 @@ select "--- --position --" as "";
 --replace_regex /SQL_LOAD_MB-[0-9]-[0-9]/SQL_LOAD_MB-#-#/
 --exec $MYSQL_BINLOG --short-form --local-load=$MYSQLTEST_VARDIR/tmp/ --read-from-remote-server --position=231 --user=root --host=127.0.0.1 --port=$MASTER_MYPORT master-bin.000002
-# Bug#7853 (mysqlbinlog does not accept input from stdin)
+# Bug#7853 mysqlbinlog does not accept input from stdin
 --disable_query_log
 select "--- reading stdin --" as "";
 --enable_query_log
@@ -118,7 +118,7 @@ select "--- reading stdin --" as "";
 drop table t1,t2;
 #
-#BUG#14157: utf8 encoding in binlog without set character_set_client
+# Bug#14157 utf8 encoding in binlog without set character_set_client
 #
 flush logs;
 --write_file $MYSQLTEST_VARDIR/tmp/bug14157.sql
@@ -174,7 +174,7 @@ delimiter ;//
 flush logs;
 call p1();
 drop procedure p1;
--error 1305
+--error ER_SP_DOES_NOT_EXIST
 call p1();
 --replace_regex /SQL_LOAD_MB-[0-9]-[0-9]/SQL_LOAD_MB-#-#/
 --exec $MYSQL_BINLOG --short-form $MYSQLTEST_VARDIR/log/master-bin.000007
@@ -222,35 +222,36 @@ flush logs;
 CREATE TABLE t1 (c1 CHAR(10));
 # we need this for getting fixed timestamps inside of this test
-flush logs;
+FLUSH LOGS;
 INSERT INTO t1 VALUES ('0123456789');
-flush logs;
+FLUSH LOGS;
 DROP TABLE t1;
 --exec $MYSQL_BINLOG --hexdump --local-load=$MYSQLTEST_VARDIR/tmp/ $MYSQLTEST_VARDIR/log/master-bin.000011 | grep 'Query' | sed 's/[0-9]\{1,\}/REMOVED/g'
 #
-# Bug #29928: incorrect connection_id() restoring from mysqlbinlog out
+# Bug#29928 incorrect connection_id() restoring from mysqlbinlog out
 #
-flush logs;
+FLUSH LOGS;
-create table t1(a int);
+CREATE TABLE t1(a INT);
-insert into t1 values(connection_id()); 
+INSERT INTO t1 VALUES(connection_id());
-let $a= `select a from t1`;
+let $a= `SELECT a FROM t1`;
-flush logs;
+FLUSH LOGS;
 --exec $MYSQL_BINLOG $MYSQLTEST_VARDIR/log/master-bin.000013 > $MYSQLTEST_VARDIR/tmp/bug29928.sql
-drop table t1;
+DROP TABLE t1;
 connect (con1, localhost, root, , test);
 connection con1;
 --exec $MYSQL test < $MYSQLTEST_VARDIR/tmp/bug29928.sql
 --remove_file $MYSQLTEST_VARDIR/tmp/bug29928.sql
-let $b= `select a from t1`;
+let $b= `SELECT a FROM t1`;
 disconnect con1;
 connection default;
-let $c= `select $a=$b`;
+let $c= `SELECT $a=$b`;
 --echo $c
-drop table t1;
+DROP TABLE t1;
 echo shell> mysqlbinlog std_data/corrupt-relay-bin.000624 > var/tmp/bug31793.sql;
 error 1;
 exec $MYSQL_BINLOG $MYSQL_TEST_DIR/std_data/corrupt-relay-bin.000624 > $MYSQLTEST_VARDIR/tmp/bug31793.sql;
+remove_file $MYSQLTEST_VARDIR/tmp/bug31793.sql;
 --echo End of 5.0 tests
--- a/mysql-test/t/mysqltest.test
+++ b/mysql-test/t/mysqltest.test
@@ -6,6 +6,9 @@
 # This test uses chmod, can't be run with root permissions
 -- source include/not_as_root.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 # ============================================================================
 #
 # Test of mysqltest itself
@@ -1436,7 +1439,7 @@ select "this will be executed";
 remove_file $MYSQLTEST_VARDIR/tmp/zero_length_file.result;
 --error 0,1
-remove_file $MYSQLTEST_VARDIR/log/zero_length_file.reject;
+remove_file $MYSQLTEST_VARDIR/tmp/zero_length_file.reject;
 --error 0,1
 remove_file $MYSQL_TEST_DIR/r/zero_length_file.reject;
@@ -2126,3 +2129,5 @@ rmdir $MYSQLTEST_VARDIR/tmp/testdir;
 --echo End of tests
+# Wait till we reached the initial number of concurrent sessions
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/read_only.test
+++ b/mysql-test/t/read_only.test
@@ -4,6 +4,9 @@
 # should work with embedded server after mysqltest is fixed
 -- source include/not_embedded.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 --disable_warnings
 DROP TABLE IF EXISTS t1,t2,t3;
 --enable_warnings
@@ -40,24 +43,24 @@ connection con1;
 select @@global.read_only;
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 create table t3 (a int);
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 insert into t1 values(1);
 # if a statement, after parse stage, looks like it will update a
 # non-temp table, it will be rejected, even if at execution it would
 # have turned out that 0 rows would be updated
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 update t1 set a=1 where 1=0;
 # multi-update is special (see sql_parse.cc) so we test it
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 update t1,t2 set t1.a=t2.a+1 where t1.a=t2.a;
 # check multi-delete to be sure
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 delete t1,t2 from t1,t2 where t1.a=t2.a;
 # With temp tables updates should be accepted:
@@ -71,7 +74,7 @@ insert into t3 values(1);
 insert into t4 select * from t3;
 # a non-temp table updated:
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 update t1,t3 set t1.a=t3.a+1 where t1.a=t3.a;
 # no non-temp table updated (just swapped):
@@ -79,7 +82,7 @@ update t1,t3 set t3.a=t1.a+1 where t1.a=t3.a;
 update t4,t3 set t4.a=t3.a+1 where t4.a=t3.a;
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 delete t1 from t1,t3 where t1.a=t3.a;
 delete t3 from t1,t3 where t1.a=t3.a;
@@ -98,11 +101,11 @@ delete t1 from t1,t3 where t1.a=t3.a;
 drop table t1;
--error 1290
+--error ER_OPTION_PREVENTS_STATEMENT
 insert into t1 values(1);
 #
-# BUG #22077 "DROP TEMPORARY TABLE fails with wrong error if read_only is set"
+# Bug#22077 DROP TEMPORARY TABLE fails with wrong error if read_only is set
 #
 # check if DROP TEMPORARY on a non-existing temporary table returns the right
 # error
@@ -114,11 +117,12 @@ drop temporary table ttt;
 drop temporary table if exists ttt;
 connection default;
+disconnect con1;
 drop table t1,t2;
 drop user test@localhost;
 --echo #
--echo # Bug #27440 read_only allows create and drop database
+--echo # Bug#27440 read_only allows create and drop database
 --echo #
 --disable_warnings
 drop database if exists mysqltest_db1;
@@ -151,3 +155,7 @@ delete from mysql.columns_priv where User like 'mysqltest_%';
 flush privileges;
 drop database mysqltest_db1;
 set global read_only=0;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/show_check.test
+++ b/mysql-test/t/show_check.test
 # Uses GRANT commands that usually disabled in embedded server
 -- source include/not_embedded.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 #
 # Test of some show commands
 #
@@ -33,7 +36,7 @@ check table t1 medium;
 check table t1 extended;
 show index from t1;
 --disable_metadata
--error 1062
+--error ER_DUP_ENTRY
 insert into t1 values (5,5,5);
 --echo -- Here we enable metadata just to check that the collation of the
@@ -191,14 +194,14 @@ show columns from t1;
 drop table t1;
 #
-# Test for Bug #2593 "SHOW CREATE TABLE doesn't properly double quotes"
+# Test for Bug#2593 SHOW CREATE TABLE doesn't properly double quotes
 #
 SET @old_sql_mode= @@sql_mode, sql_mode= '';
 SET @old_sql_quote_show_create= @@sql_quote_show_create, sql_quote_show_create= OFF;
 ######### hook for WL#1324 #
--error 1103
+--error ER_WRONG_TABLE_NAME
 CREATE TABLE `a/b` (i INT);
 # the above test should WORK when WL#1324 is done,
 # it should be removed and
@@ -224,7 +227,7 @@ CREATE TABLE `a/b` (i INT);
 #SHOW CREATE TABLE """a";
 #DROP TABLE """a";
 #
-#Bug #4374 SHOW TABLE STATUS FROM ignores collation_connection
+#Bug#4374 SHOW TABLE STATUS FROM ignores collation_connection
 #set names latin1;
 #create database ``;
 #create table ``.`` (a int) engine=heap;
@@ -252,7 +255,7 @@ SET sql_quote_show_create= @old_sql_quote_show_create;
 SET sql_mode= @old_sql_mode;
 #
-# Test for bug #2719 "Heap tables status shows wrong or missing data."
+# Test for Bug#2719 Heap tables status shows wrong or missing data.
 #
 select @@max_heap_table_size;
@@ -313,7 +316,7 @@ show table status;
 drop table t1, t2, t3;
 #
-# Test for bug #3342 SHOW CREATE DATABASE seems to require DROP privilege
+# Test for Bug#3342 SHOW CREATE DATABASE seems to require DROP privilege
 #
 create database mysqltest;
@@ -328,30 +331,33 @@ connect (con1,localhost,mysqltest_1,,mysqltest);
 connection con1;
 select * from t1;
 show create database mysqltest;
--error 1142
+--error ER_TABLEACCESS_DENIED_ERROR
 drop table t1;
--error 1044
+--error ER_DBACCESS_DENIED_ERROR
 drop database mysqltest;
+disconnect con1;
 connect (con2,localhost,mysqltest_2,,test);
 connection con2;
--error 1142
+--error ER_TABLEACCESS_DENIED_ERROR
 select * from mysqltest.t1;
--error 1044
+--error ER_DBACCESS_DENIED_ERROR
 show create database mysqltest;
--error 1142
+--error ER_TABLEACCESS_DENIED_ERROR
 drop table mysqltest.t1;
--error 1044
+--error ER_DBACCESS_DENIED_ERROR
 drop database mysqltest;
+disconnect con2;
 connect (con3,localhost,mysqltest_3,,test);
 connection con3;
--error 1142
+--error ER_TABLEACCESS_DENIED_ERROR
 select * from mysqltest.t1;
--error 1044
+--error ER_DBACCESS_DENIED_ERROR
 show create database mysqltest;
 drop table mysqltest.t1;
 drop database mysqltest;
+disconnect con3;
 connection default;
 set names binary;
@@ -371,7 +377,7 @@ flush privileges;
 #drop database ``;
 # Test that USING <keytype> is always shown in SHOW CREATE TABLE when it was
-# specified during table creation, but not otherwise. (Bug #7235)
+# specified during table creation, but not otherwise. (Bug#7235)
 CREATE TABLE t1 (i int, KEY (i)) ENGINE=MEMORY;
 SHOW CREATE TABLE t1;
 DROP TABLE t1;
@@ -402,7 +408,7 @@ ALTER TABLE t1 ENGINE=MEMORY;
 SHOW CREATE TABLE t1;
 DROP TABLE t1;
-# Test for BUG#9439 "Reporting wrong datatype for sub_part on show index"
+# Test for Bug#9439 Reporting wrong datatype for sub_part on show index
 CREATE TABLE t1(
  field1 text NOT NULL,
  PRIMARY KEY(field1(1000))
@@ -412,7 +418,7 @@ show index from t1;
 --disable_metadata
 drop table t1;
-# Test for BUG#11635: mysqldump exports TYPE instead of USING for HASH
+# Test for Bug#11635 mysqldump exports TYPE instead of USING for HASH
 create table t1 (
  c1 int NOT NULL,
  c2 int NOT NULL,
@@ -422,7 +428,7 @@ create table t1 (
 SHOW CREATE TABLE t1;
 DROP TABLE t1;
-# Test for BUG#93: 4.1 protocl crash on corupted frm and SHOW TABLE STATUS
+# Test for Bug#93 4.1 protocl crash on corupted frm and SHOW TABLE STATUS
 flush tables;
@@ -430,7 +436,7 @@ flush tables;
 system echo "this is a junk file for test" >> $MYSQLTEST_VARDIR/master-data/test/t1.frm ;
 --replace_column 6 # 7 # 8 # 9 #
 SHOW TABLE STATUS like 't1';
--error 1033
+--error ER_NOT_FORM_FILE
 show create table t1;
 drop table t1;
@@ -438,7 +444,7 @@ drop table t1;
 --echo End of 4.1 tests
 #
-# BUG 12183 -  SHOW OPEN TABLES behavior doesn't match grammar
+# Bug#12183 SHOW OPEN TABLES behavior doesn't match grammar
 # First we close all open tables with FLUSH tables and then we open some.
 CREATE TABLE txt1(a int);
 CREATE TABLE tyt2(a int);
@@ -456,14 +462,14 @@ DROP TABLE txt1;
 DROP TABLE tyt2;
 DROP TABLE urkunde;
 #
-# BUG #12591 (SHOW TABLES FROM dbname produces wrong error message)
+# Bug#12591 SHOW TABLES FROM dbname produces wrong error message
 #
--error 1049
+--error ER_BAD_DB_ERROR
 SHOW TABLES FROM non_existing_database;
 #
-# Bug#17203: "sql_no_cache sql_cache" in views created from prepared
+# Bug#17203 "sql_no_cache sql_cache" in views created from prepared
 # statement
 #
 # The problem was that initial user setting was forgotten, and current
@@ -543,7 +549,7 @@ SHOW COLUMNS FROM no_such_table;
 #
-# Bug #19764: SHOW commands end up in the slow log as table scans
+# Bug#19764 SHOW commands end up in the slow log as table scans
 #
 flush status;
 show status like 'slow_queries';
@@ -555,7 +561,7 @@ select 1 from information_schema.tables limit 1;
 show status like 'slow_queries';
 #
-# BUG#10491: Server returns data as charset binary SHOW CREATE TABLE or SELECT
+# BUG#10491 Server returns data as charset binary SHOW CREATE TABLE or SELECT
 #           FROM I_S.
 #
@@ -821,10 +827,11 @@ SHOW CREATE TABLE mysqltest1.t1;
 # Cleanup.
 DROP DATABASE mysqltest1;
+--remove_file $MYSQLTEST_VARDIR/tmp/show_check.mysqltest1.sql
 use test;
 #
-# Bug #28808: log_queries_not_using_indexes variable dynamic change is ignored
+# Bug#28808 log_queries_not_using_indexes variable dynamic change is ignored
 #
 flush status;
 show variables like "log_queries_not_using_indexes";
@@ -840,7 +847,7 @@ select 1 from information_schema.tables limit 1;
 show status like 'slow_queries';
 #
-# Bug #30088: Can't disable myisam-recover by a value of ""
+# Bug#30088 Can't disable myisam-recover by a value of ""
 #
 show variables like 'myisam_recover_options';
@@ -865,3 +872,7 @@ show create table t1;
 drop table t1;
 --echo End of 5.0 tests
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/skip_name_resolve.test
+++ b/mysql-test/t/skip_name_resolve.test
 # Can't be tested with embedded server
 -- source include/not_embedded.inc
-# Bug #8471: IP address with mask fail when skip-name-resolve is on
+# Bug#8471: IP address with mask fail when skip-name-resolve is on
 GRANT ALL ON test.* TO mysqltest_1@'127.0.0.1/255.255.255.255';
 SHOW GRANTS FOR mysqltest_1@'127.0.0.1/255.255.255.255';
 REVOKE ALL ON test.* FROM mysqltest_1@'127.0.0.1/255.255.255.255';
@@ -9,12 +9,13 @@ DROP USER mysqltest_1@'127.0.0.1/255.255.255.255';
 # End of 4.1 tests
-# Bug #13407 "Remote connecting crashes server".
+# Bug#13407: Remote connecting crashes server
 # Server crashed when one used USER() function in connection for which
 # was impossible to obtain peer hostname.
 connect (con1, 127.0.0.1, root, , test, $MASTER_MYPORT, );
 --replace_column 1 #
-select user();
+SELECT USER();
 --replace_column 1 <id> 3 <host> 5 <command> 6 <time> 7 <state> 8 <info>
-show processlist;
+SHOW PROCESSLIST;
 connection default;
+disconnect con1;
--- a/mysql-test/t/sp-security.test
+++ b/mysql-test/t/sp-security.test
@@ -5,6 +5,9 @@
 # Can't test with embedded server that doesn't support grants
 -- source include/not_embedded.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 connect (con1root,localhost,root,,);
 connection con1root;
@@ -156,7 +159,7 @@ call db1_secret.stamp(6);
 select db1_secret.db();
 #
-# BUG#2777
+# Bug#2777 Stored procedure doesn't observe definer's rights
 #
 connection con1root;
@@ -215,7 +218,7 @@ call q();
 select * from t2;
 #
-# BUG#6030: Stored procedure has no appropriate DROP privilege
+# Bug#6030 Stored procedure has no appropriate DROP privilege
 # (or ALTER for that matter)
 # still connection con2user1 in db2
@@ -330,7 +333,7 @@ flush privileges;
 drop table t1;
 #
-# BUG#9503: reseting correct parameters of thread after error in SP function
+# Bug#9503 reseting correct parameters of thread after error in SP function
 #
 connect (root,localhost,root,,test);
 connection root;
@@ -366,10 +369,12 @@ REVOKE ALL PRIVILEGES, GRANT OPTION FROM user1@localhost;
 drop function bug_9503;
 use test;
 drop database mysqltest;
+connection default;
+disconnect root;
 #
 # correct value from current_user() in function run from "security definer"
-# (BUG#7291)
+# (Bug#7291 Stored procedures: wrong CURRENT_USER value)
 #
 connection con1root;
 use test;
@@ -398,7 +403,7 @@ REVOKE ALL PRIVILEGES, GRANT OPTION FROM user1@localhost;
 drop user user1@localhost;
 #
-# Bug #12318: Wrong error message when accessing an inaccessible stored
+# Bug#12318 Wrong error message when accessing an inaccessible stored
 # procedure in another database when the current database is
 # information_schema.
 #
@@ -438,7 +443,7 @@ revoke usage on *.* from mysqltest_1@localhost;
 drop user mysqltest_1@localhost;
 #
-# BUG#12812 create view calling a function works without execute right
+# Bug#12812 create view calling a function works without execute right
 #           on function
 delimiter |;
 --disable_warnings
@@ -464,7 +469,7 @@ delimiter ;|
 #
-# BUG#14834: Server denies to execute Stored Procedure
+# Bug#14834 Server denies to execute Stored Procedure
 #
 # The problem here was with '_' in the database name.
 #
@@ -507,7 +512,7 @@ drop database db_bug14834;
 #
-# BUG#14533: 'desc tbl' in stored procedure causes error
+# Bug#14533 'desc tbl' in stored procedure causes error
 # ER_TABLEACCESS_DENIED_ERROR
 #
 create database db_bug14533;
@@ -546,13 +551,13 @@ drop database db_bug14533;
 #
-# BUG#7787: Stored procedures: improper warning for "grant execute" statement
+# Bug#7787 Stored procedures: improper warning for "grant execute" statement
 #
 # Prepare.
 CREATE DATABASE db_bug7787;
-use db_bug7787;
+USE db_bug7787;
 # Test.
@@ -569,7 +574,7 @@ use test;
 #
-# WL#2897: Complete definer support in the stored routines.
+# WL#2897 Complete definer support in the stored routines.
 #
 # The following cases are tested:
 #   1. check that if DEFINER-clause is not explicitly specified, stored routines
@@ -614,7 +619,7 @@ GRANT ALL PRIVILEGES ON mysqltest.* TO mysqltest_2@localhost;
 --echo ---> connection: mysqltest_2_con
 --connection mysqltest_2_con
-use mysqltest;
+USE mysqltest;
 CREATE PROCEDURE wl2897_p1() SELECT 1;
@@ -626,7 +631,7 @@ CREATE FUNCTION wl2897_f1() RETURNS INT RETURN 1;
 --echo ---> connection: mysqltest_1_con
 --connection mysqltest_1_con
-use mysqltest;
+USE mysqltest;
 --error ER_SPECIFIC_ACCESS_DENIED_ERROR
 CREATE DEFINER=root@localhost PROCEDURE wl2897_p2() SELECT 2;
@@ -652,7 +657,7 @@ CREATE DEFINER='a @ b @ c'@localhost FUNCTION wl2897_f3() RETURNS INT RETURN 3;
 --echo ---> connection: con1root
 --connection con1root
-use mysqltest;
+USE mysqltest;
 SHOW CREATE PROCEDURE wl2897_p1;
 SHOW CREATE PROCEDURE wl2897_p3;
@@ -672,7 +677,7 @@ DROP DATABASE mysqltest;
 #
-# BUG#13198: SP executes if definer does not exist
+# Bug#13198 SP executes if definer does not exist
 #
 # Prepare environment.
@@ -702,7 +707,7 @@ GRANT ALL PRIVILEGES ON mysqltest.* TO mysqltest_2@localhost;
 --echo ---> connection: mysqltest_1_con
 --connection mysqltest_1_con
-use mysqltest;
+USE mysqltest;
 CREATE PROCEDURE bug13198_p1()
  SELECT 1;
@@ -720,7 +725,7 @@ SELECT bug13198_f1();
 --echo ---> connection: mysqltest_2_con
 --connection mysqltest_2_con
-use mysqltest;
+USE mysqltest;
 CALL bug13198_p1();
@@ -742,7 +747,7 @@ DROP USER mysqltest_1@localhost;
 --echo ---> connection: mysqltest_2_con
 --connection mysqltest_2_con
-use mysqltest;
+USE mysqltest;
 --error ER_NO_SUCH_USER
 CALL bug13198_p1();
@@ -764,7 +769,7 @@ DROP DATABASE mysqltest;
 #
-# Bug#19857 - When a user with CREATE ROUTINE priv creates a routine,
+# Bug#19857 When a user with CREATE ROUTINE priv creates a routine,
 #           it results in NULL p/w
 #
@@ -780,7 +785,7 @@ SELECT Host,User,Password FROM mysql.user WHERE User='user19857';
 --echo ---> connection: mysqltest_2_con
 --connection mysqltest_2_con
-use test;
+USE test;
 DELIMITER //;
  CREATE PROCEDURE sp19857() DETERMINISTIC
@@ -814,7 +819,7 @@ DROP USER user19857@localhost;
 #
-# BUG#18630: Arguments of suid routine calculated in wrong security
+# Bug#18630 Arguments of suid routine calculated in wrong security
 # context
 #
 # Arguments of suid routines were calculated in definer's security
@@ -886,3 +891,7 @@ DROP FUNCTION f_suid;
 DROP TABLE t1;
 --echo End of 5.0 tests.
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/sp_notembedded.test
+++ b/mysql-test/t/sp_notembedded.test
 # Can't test with embedded server
 -- source include/not_embedded.inc
--sleep 2
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 --disable_warnings
 drop table if exists t1,t3;
 --enable_warnings
 delimiter |;
 #
-# BUG#4902: Stored procedure with SHOW WARNINGS leads to packet error
+# Bug#4902: Stored procedure with SHOW WARNINGS leads to packet error
 #
 # Added tests for show grants command
 --disable_warnings
@@ -47,7 +50,7 @@ drop procedure bug4902_2|
 #
-# BUG#5278: Stored procedure packets out of order if SET PASSWORD.
+# Bug#5278: Stored procedure packets out of order if SET PASSWORD.
 #
 --disable_warnings
 drop function if exists bug5278|
@@ -58,13 +61,16 @@ begin
  return 'okay';
 end|
--error 1133
+--error ER_PASSWORD_NO_MATCH
 select bug5278()|
--error 1133
+--error ER_PASSWORD_NO_MATCH
 select bug5278()|
 drop function bug5278|
+#
+# Bug#3583: query cache doesn't work for stored procedures
+#
 --disable_warnings
 drop table if exists t1|
 --enable_warnings
@@ -72,9 +78,6 @@ create table t1 (
 	id   char(16) not null default '',
        data int not null
 )|
-#
-# BUG#3583: query cache doesn't work for stored procedures
-#
 --disable_warnings
 drop procedure if exists bug3583|
 --enable_warnings
@@ -110,8 +113,9 @@ delete from t1|
 drop procedure bug3583|
 drop table t1|
 #
-# BUG#6807: Stored procedure crash if CREATE PROCEDURE ... KILL QUERY
+# Bug#6807: Stored procedure crash if CREATE PROCEDURE ... KILL QUERY
 #
 --disable_warnings
 drop procedure if exists bug6807|
@@ -125,16 +129,16 @@ begin
  select 'Not reached';
 end|
--error 1317
+--error ER_QUERY_INTERRUPTED
 call bug6807()|
--error 1317
+--error ER_QUERY_INTERRUPTED
 call bug6807()|
 drop procedure bug6807|
 #
-# BUG#10100: function (and stored procedure?) recursivity problem
+# Bug#10100: function (and stored procedure?) recursivity problem
 #
 --disable_warnings
 drop function if exists bug10100f|
@@ -233,11 +237,11 @@ begin
  close c;
 end|
-#end of the stack checking
+# end of the stack checking
 set @@max_sp_recursion_depth=255|
 set @var=1|
-#disable log because error about stack overrun contains numbers which
+# disable log because error about stack overrun contains numbers which
-#depend on a system
+# depend on a system
 -- disable_result_log
 -- error ER_STACK_OVERRUN_NEED_MORE
 call bug10100p(255, @var)|
@@ -266,6 +270,7 @@ drop table t3|
 delimiter ;|
 #
 # Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context
 #
@@ -282,6 +287,11 @@ call 15298_1();
 call 15298_2();
 connection default;
+disconnect con1;
 drop user mysqltest_1@localhost;
 drop procedure 15298_1;
 drop procedure 15298_2;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/ssl-big.test
+++ b/mysql-test/t/ssl-big.test
@@ -4,12 +4,15 @@
 -- source include/have_ssl.inc
 -- source include/big_test.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 --disable_warnings
 DROP TABLE IF EXISTS t1, t2;
 --enable_warnings
 #
-# Bug #29579 Clients using SSL can hang the server
+# Bug#29579 Clients using SSL can hang the server
 #
 connect (ssl_con,localhost,root,,,,,SSL);
@@ -53,4 +56,9 @@ while ($count)
 connect (ssl_con,localhost,root,,,,,SSL);
 drop table t1;
+connection default;
+disconnect ssl_con;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/ssl.test
+++ b/mysql-test/t/ssl.test
@@ -3,6 +3,9 @@
 -- source include/have_ssl.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 connect (ssl_con,localhost,root,,,,,SSL);
 # Check ssl turned on
@@ -14,4 +17,9 @@ SHOW STATUS LIKE 'Ssl_cipher';
 # Check ssl turned on
 SHOW STATUS LIKE 'Ssl_cipher';
+connection default;
+disconnect ssl_con;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/ssl_compress.test
+++ b/mysql-test/t/ssl_compress.test
@@ -4,6 +4,9 @@
 -- source include/have_ssl.inc
 -- source include/have_compress.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 connect (ssl_compress_con,localhost,root,,,,,SSL COMPRESS);
 # Check ssl turned on
@@ -20,3 +23,10 @@ SHOW STATUS LIKE 'Ssl_cipher';
 # Check compression turned on
 SHOW STATUS LIKE 'Compression';
+connection default;
+disconnect ssl_compress_con;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/status.test
+++ b/mysql-test/t/status.test
 # embedded server causes different stat
 -- source include/not_embedded.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 # PS causes different statistics
 --disable_ps_protocol
@@ -208,3 +211,7 @@ DROP PROCEDURE p1;
 DROP FUNCTION f1;
 # End of 5.0 tests
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/user_limits.test
+++ b/mysql-test/t/user_limits.test
@@ -3,7 +3,10 @@
 #
 # Requires privileges to be enabled
-- source include/not_embedded.inc
+--source include/not_embedded.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 # Prepare play-ground
 --disable_warnings
@@ -28,11 +31,11 @@ connect (mqph, localhost, mysqltest_1,,);
 connection mqph;
 select * from t1;
 select * from t1;
--error 1226
+--error ER_USER_LIMIT_REACHED
 select * from t1;
 connect (mqph2, localhost, mysqltest_1,,);
 connection mqph2;
--error 1226
+--error ER_USER_LIMIT_REACHED
 select * from t1;
 # cleanup
 connection default;
@@ -50,12 +53,12 @@ select * from t1;
 select * from t1;
 delete from t1;
 delete from t1;
--error 1226
+--error ER_USER_LIMIT_REACHED
 delete from t1;
 select * from t1;
 connect (muph2, localhost, mysqltest_1,,);
 connection muph2;
--error 1226
+--error ER_USER_LIMIT_REACHED
 delete from t1;
 select * from t1;
 # Cleanup
@@ -74,7 +77,7 @@ connect (mcph2, localhost, mysqltest_1,,);
 connection mcph2;
 select * from t1;
 --replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
--error 1226
+--error ER_USER_LIMIT_REACHED
 connect (mcph3, localhost, mysqltest_1,,);
 # Old connection is still ok
 select * from t1;
@@ -83,7 +86,7 @@ select * from t1;
 disconnect mcph1;
 disconnect mcph2;
 --replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
--error 1226
+--error ER_USER_LIMIT_REACHED
 connect (mcph3, localhost, mysqltest_1,,);
 # Cleanup
 connection default;
@@ -101,7 +104,7 @@ connect (muc2, localhost, mysqltest_1,,);
 connection muc2;
 select * from t1;
 --replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
--error 1226
+--error ER_USER_LIMIT_REACHED
 connect (muc3, localhost, mysqltest_1,,);
 # Closing of one of connections should help
 disconnect muc1;
@@ -115,7 +118,7 @@ connect (muc4, localhost, mysqltest_1,,);
 connection muc4;
 select * from t1;
 --replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
--error 1226
+--error ER_USER_LIMIT_REACHED
 connect (muc5, localhost, mysqltest_1,,);
 # Clean up
 connection default;
@@ -129,7 +132,7 @@ drop user mysqltest_1@localhost;
 select @@session.max_user_connections, @@global.max_user_connections;
 # Local max_user_connections variable can't be set directly
 # since this limit is per-account
--error 1229
+--error ER_GLOBAL_VARIABLE
 set session max_user_connections= 2;
 # But it is ok to set global max_user_connections
 set global max_user_connections= 2;
@@ -144,7 +147,7 @@ connect (muca2, localhost, mysqltest_1,,);
 connection muca2;
 select * from t1;
 --replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
--error 1203
+--error ER_TOO_MANY_USER_CONNECTIONS
 connect (muca3, localhost, mysqltest_1,,);
 # Now we are testing that per-account limit prevails over gloabl limit
 connection default;
@@ -154,7 +157,7 @@ connect (muca3, localhost, mysqltest_1,,);
 connection muca3;
 select @@session.max_user_connections, @@global.max_user_connections;
 --replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
--error 1226
+--error ER_USER_LIMIT_REACHED
 connect (muca4, localhost, mysqltest_1,,);
 # Cleanup
 connection default;
@@ -167,3 +170,7 @@ drop user mysqltest_1@localhost;
 # Final cleanup
 drop table t1;
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
--- a/mysql-test/t/view.test
+++ b/mysql-test/t/view.test
--- a/mysql-test/t/view_grant.test
+++ b/mysql-test/t/view_grant.test
--- a/mysql-test/t/wait_timeout.test
+++ b/mysql-test/t/wait_timeout.test
@@ -2,7 +2,7 @@
 -- source include/not_embedded.inc
 #
-# Bug #8731: wait_timeout does not work on Mac OS X
+# Bug#8731 wait_timeout does not work on Mac OS X
 #
@@ -87,6 +87,7 @@ while (!`select @aborted_clients`)
  }
 }
 --enable_query_log
+disconnect wait_con;
 connection con1;
 # When the connection is closed in this way, the error code should
@@ -97,3 +98,5 @@ select 2;
 --enable_reconnect
 select 3;
 disconnect con1;
+# The last connect is to keep tools checking the current test happy.
+connect (default,localhost,root,,test,,);
--- a/mysql-test/t/xa.test
+++ b/mysql-test/t/xa.test
@@ -2,6 +2,10 @@
 # WL#1756
 #
 -- source include/have_innodb.inc
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
 --disable_warnings
 drop table if exists t1, t2;
 --enable_warnings
@@ -14,10 +18,10 @@ xa rollback 'test1';
 select * from t1;
 xa start 'test2';
--error 1399
+--error ER_XAER_RMFAIL
 xa start 'test-bad';
 insert t1 values (20);
--error 1399
+--error ER_XAER_RMFAIL
 xa prepare 'test2';
 xa end 'test2';
 xa prepare 'test2';
@@ -27,22 +31,22 @@ select * from t1;
 xa start 'testa','testb';
 insert t1 values (30);
--error 1399
+--error ER_XAER_RMFAIL
 commit;
 xa end 'testa','testb';
--error 1399
+--error ER_XAER_RMFAIL
 begin;
--error 1399
+--error ER_XAER_RMFAIL
 create table t2 (a int);
 connect (con1,localhost,root,,);
 connection con1;
--error 1440
+--error ER_XAER_DUPID
 xa start 'testa','testb';
--error 1440
+--error ER_XAER_DUPID
 xa start 'testa','testb', 123;
 #        gtrid [ , bqual [ , formatID ] ]
@@ -51,7 +55,7 @@ insert t1 values (40);
 xa end 'testb',' 0@P`',11;
 xa prepare 'testb',0x2030405060,11;
--error 1399
+--error ER_XAER_RMFAIL
 start transaction;
 xa recover;
@@ -64,11 +68,11 @@ xa prepare 'testa','testb';
 xa recover;
--error 1397
+--error ER_XAER_NOTA
 xa commit 'testb',0x2030405060,11;
 xa rollback 'testa','testb';
--error 1064
+--error ER_PARSE_ERROR
 xa start 'zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz';
 select * from t1;
@@ -119,3 +123,7 @@ xa start 'a','c';
 drop table t1;
 --echo End of 5.0 tests
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc