Fix for Bug#36874 : main.slow_launch_time_func test fails

SET @global_slow_launch_time = @@GLOBAL.slow_launch_time;

'#--------------------FN_DYNVARS_124_01-------------------------#'

** Connection default **

'#--------------------FN_DYNVARS_124_01-------------------------#'

SET @@GLOBAL.slow_launch_time=0;

SELECT @@GLOBAL.slow_launch_time;

@@GLOBAL.slow_launch_time

0

** Connecting conn5 using username 'root' **

** Connecting conn6 using username 'root' **

** Connecting conn7 using username 'root' **

** Connecting conn8 using username 'root' **

** Connecting conn9 using username 'root' **

** Connecting conn10 using username 'root' **

** Connecting conn11 using username 'root' **

** Connecting conn12 using username 'root' **

** Connecting conn13 using username 'root' **

** Connecting conn14 using username 'root' **

** Connecting conn15 using username 'root' **

** Connecting conn16 using username 'root' **

show status like 'slow_launch_threads';

Variable_name	Value

Slow_launch_threads	12

12 Expected

** Connection default **

** Disconnecting conn5 **

** Disconnecting conn6 **

** Disconnecting conn7 **

** Disconnecting conn8 **

** Disconnecting conn9 **

** Disconnecting conn10 **

** Disconnecting conn11 **

** Disconnecting conn12 **

** Disconnecting conn13 **

** Disconnecting conn14 **

** Disconnecting conn15 **

** Disconnecting conn16 **

** Connecting conn1 using username 'root' **

** Switch to connection default and disconnect conn1 **

'#--------------------FN_DYNVARS_124_02-------------------------#'

SET @@GLOBAL.slow_launch_time= 1000;

SELECT @@GLOBAL.slow_launch_time;

@@GLOBAL.slow_launch_time

1000

** Connecting conn2 using username 'root' **

** Switch to connection default and disconnect conn2 **

SET @@GLOBAL.slow_launch_time = @global_slow_launch_time;

############# mysql-test\t\SLOW_LAUNCH_time_func.test ##########################

############# mysql-test\t\slow_launch_time_func.test ##########################

#                                                                              #

# Variable Name: slow_launch_time                                              #

# Scope: SESSION                                                               #

# Creation Date: 2008-03-02                                                    #

# Author:  Sharique Abdullah                                                   #

#                                                                              #

# Last change: 2008-09-09 mleich Reimplementation of this test                 #

#              - Fix Bug#36874 : main.slow_launch_time_func test fails         #

#                randomly                                                      #

#              - Fix other failures and streamline the test                    #

#                                                                              #

# Description: Test Cases of Dynamic System Variable "slow_launch_time "       #

#              that checks behavior of this variable in the following ways     #

#              * Functionality based on different values                       #

#                                                                              #

#Reference: http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html#

# Reference:                                                                   #

#    http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html       #

#           option_mysqld_slow_launch_time                                     #

#                                                                              #

################################################################################

SET @global_slow_launch_time = @@GLOBAL.slow_launch_time;

--echo ** Connection default **

connection default;

--echo '#--------------------FN_DYNVARS_124_01-------------------------#'

#####################################

#   Increase number of connection   #

#####################################

--echo ** Connection default **

connection default;

########################################################################

# Reveal that a new connect gets counted as "slow launched thread" if  #

# @@GLOBAL.slow_launch_time = 0.                                       #

# The value of slow_launch_threads must be increased by 1.             #

########################################################################

SET @@GLOBAL.slow_launch_time=0;

SELECT @@GLOBAL.slow_launch_time;

--echo ** Connecting conn5 using username 'root' **

CONNECT (conn5,localhost,root,,);

--echo ** Connecting conn6 using username 'root' **

CONNECT (conn6,localhost,root,,);

--echo ** Connecting conn7 using username 'root' **

CONNECT (conn7,localhost,root,,);

--echo ** Connecting conn8 using username 'root' **

CONNECT (conn8,localhost,root,,);

--echo ** Connecting conn9 using username 'root' **

CONNECT (conn9,localhost,root,,);

--echo ** Connecting conn10 using username 'root' **

CONNECT (conn10,localhost,root,,);

--echo ** Connecting conn11 using username 'root' **

CONNECT (conn11,localhost,root,,);

--echo ** Connecting conn12 using username 'root' **

CONNECT (conn12,localhost,root,,);

--echo ** Connecting conn13 using username 'root' **

CONNECT (conn13,localhost,root,,);

--echo ** Connecting conn14 using username 'root' **

CONNECT (conn14,localhost,root,,);

--echo ** Connecting conn15 using username 'root' **

CONNECT (conn15,localhost,root,,);

--echo ** Connecting conn16 using username 'root' **

CONNECT (conn16,localhost,root,,);

let $value_before=

   query_get_value(show status like 'slow_launch_threads', Value, 1);

--echo ** Connecting conn1 using username 'root' **

CONNECT (conn1,localhost,root,,);

let $value_after=

   query_get_value(show status like 'slow_launch_threads', Value, 1);

if (!`SELECT $value_after = $value_before + 1`)

{

   --echo ERROR: Subtest FN_DYNVARS_124_01 failed

   --echo A new connect should be counted as 'slow_launch_thread' if

   --echo @@GLOBAL.slow_launch_time=0

   SELECT @@GLOBAL.slow_launch_time;

   echo Number of slow_launch_threads before new connect: $value_before;

   echo Number of slow_launch_threads after new connect: $value_after;

}

--echo ** Switch to connection default and disconnect conn1 **

connection default;

disconnect conn1;

--echo '#--------------------FN_DYNVARS_124_02-------------------------#'

########################################################################

# Reveal that a new connect gets not counted as "slow launched thread" #

# if @@GLOBAL.slow_launch_time is sufficient big.                      #

# The value of slow_launch_threads must not change.                    #

########################################################################

#

#  Checking status of slow_launch_threads

#

SET @@GLOBAL.slow_launch_time= 1000;

SELECT @@GLOBAL.slow_launch_time;

show status like 'slow_launch_threads';

--echo 12 Expected

let $value_before=

   query_get_value(show status like 'slow_launch_threads', Value, 1);

--echo ** Connecting conn2 using username 'root' **

CONNECT (conn2,localhost,root,,);

let $value_after=

   query_get_value(show status like 'slow_launch_threads', Value, 1);

if (!`SELECT $value_after = $value_before`)

{

   --echo ERROR: Subtest FN_DYNVARS_124_02 failed

   --echo A new connect must not be counted as 'slow_launch_thread' if

   --echo @@GLOBAL.slow_launch_time is sufficient big.

   SELECT @@GLOBAL.slow_launch_time;

   echo Number of slow_launch_threads before new connect: $value_before;

   echo Number of slow_launch_threads after new connect: $value_after;

}

#

# Cleanup

#

--echo ** Connection default **

--echo ** Switch to connection default and disconnect conn2 **

connection default;

--echo ** Disconnecting conn5 **

disconnect conn5;

--echo ** Disconnecting conn6 **

disconnect conn6;

--echo ** Disconnecting conn7 **

disconnect conn7;

--echo ** Disconnecting conn8 **

disconnect conn8;

--echo ** Disconnecting conn9 **

disconnect conn9;

--echo ** Disconnecting conn10 **

disconnect conn10;

--echo ** Disconnecting conn11 **

disconnect conn11;

--echo ** Disconnecting conn12 **

disconnect conn12;

--echo ** Disconnecting conn13 **

disconnect conn13;

--echo ** Disconnecting conn14 **

disconnect conn14;

--echo ** Disconnecting conn15 **

disconnect conn15;

--echo ** Disconnecting conn16 **

disconnect conn16;

disconnect conn2;

SET @@GLOBAL.slow_launch_time = @global_slow_launch_time;