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|
###############################################################################
# #
# Variable Name: sort_buffer_size #
# Scope: Global/Session #
# Access Type: Dynamic #
# Data Type: numeric #
# #
# #
# Creation Date: 2012-08-31 #
# Author : Tanjot Singh Uppal #
# #
# #
# Description:Test Cases of Dynamic System Variable sort_buffer_size #
# that checks the behavior of this variable in the following ways #
# * Value Check #
# * Scope Check #
# * Functionality Check #
# * Accessability Check #
# #
###############################################################################
-- source include/have_innodb.inc
-- source include/not_embedded.inc
-- source include/have_innodb_16k.inc
--echo '#---------------------WL6372_VAR_8_01----------------------#'
####################################################################
# Checking default value #
####################################################################
SELECT COUNT(@@GLOBAL.sort_buffer_size);
--echo 1 Expected
SELECT COUNT(@@SESSION.sort_buffer_size);
--echo 1 Expected
SELECT @@GLOBAL.sort_buffer_size;
--echo 262144 Expected
SELECT @@SESSION.sort_buffer_size;
--echo 262144 Expected
--echo '#---------------------WL6372_VAR_8_02----------------------#'
#################################################################################
# Checking the Default value post starting the server with other value #
#################################################################################
--echo # Restart server with sort_buffer_size 9999999;
let $restart_file= $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
--exec echo "wait" > $restart_file
--shutdown_server 10
--source include/wait_until_disconnected.inc
-- exec echo "restart:--sort_buffer_size=9999999 " > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
-- enable_reconnect
-- source include/wait_until_connected_again.inc
SELECT @@GLOBAL.sort_buffer_size;
--echo 9999999 Expected
SET @@GLOBAL.sort_buffer_size=DEFAULT;
SELECT @@GLOBAL.sort_buffer_size;
--echo 262144 Expected
--echo '#---------------------WL6372_VAR_8_03----------------------#'
####################################################################
# Checking Value can be set - Dynamic #
####################################################################
SET @@local.sort_buffer_size=9999999;
SET @@session.sort_buffer_size=9999999;
SET @@GLOBAL.sort_buffer_size=9999999;
SET @@local.sort_buffer_size=DEFAULT;
SET @@session.sort_buffer_size=DEFAULT;
SET @@GLOBAL.sort_buffer_size=DEFAULT;
SELECT @@GLOBAL.sort_buffer_size;
--echo 262144 Expected
# The below check is hashed until the BUG#14635304 is fixed
#SELECT @@SESSION.sort_buffer_size;
#--echo 262144 Expected
#SELECT @@LOCAL.sort_buffer_size;
#--echo 262144 Expected
--echo '#---------------------WL6372_VAR_8_04----------------------#'
#################################################################
# Check if the value in GLOBAL Table matches value in variable #
#################################################################
SELECT @@GLOBAL.sort_buffer_size = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='sort_buffer_size';
--echo 1 Expected
SELECT @@session.sort_buffer_size = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.SESSION_VARIABLES
WHERE VARIABLE_NAME='sort_buffer_size';
--echo 1 Expected
SELECT COUNT(@@GLOBAL.sort_buffer_size);
--echo 1 Expected
SELECT COUNT(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='sort_buffer_size';
--echo 1 Expected
--echo '#---------------------WL6372_VAR_8_05----------------------#'
################################################################################
# Checking Variable Scope #
################################################################################
SELECT @@sort_buffer_size = @@GLOBAL.sort_buffer_size;
--echo 0 Expected
SELECT COUNT(@@sort_buffer_size);
--echo 1 Expected
SELECT COUNT(@@local.sort_buffer_size);
--echo 1 Expected
SELECT COUNT(@@SESSION.sort_buffer_size);
--echo 1 Expected
SELECT COUNT(@@GLOBAL.sort_buffer_size);
--echo 1 Expected
--Error ER_BAD_FIELD_ERROR
SELECT sort_buffer_size = @@SESSION.sort_buffer_size;
--echo Expected error 'Unknown column sort_buffer_size in field list'
--echo '#---------------------WL6372_VAR_8_06----------------------#'
################################################################################
# Checking boundary values #
################################################################################
--disable_warnings
SET @@GLOBAL.sort_buffer_size=32767;
SET @@session.sort_buffer_size=32767;
--enable_warnings
SELECT @@GLOBAL.sort_buffer_size;
--echo 32768 Expected
select @@session.sort_buffer_size;
--echo 32768 Expected
--disable_warnings
SET @@global.sort_buffer_size=-1;
SET @@session.sort_buffer_size=-1;
--enable_warnings
select @@session.sort_buffer_size;
--echo 32768 Expected
SELECT @@GLOBAL.sort_buffer_size;
--echo 32768 Expected
################################################################################
# The MAX value is not being tested as would #
# differ on a 32 bit machine and a 64 bit machine #
################################################################################
--echo '#---------------------WL6372_VAR_8_07----------------------#'
################################################################################
# Checking the /Var directory size #
################################################################################
-- source include/vardir_size_check.inc
--echo TRUE Expected
--echo '#---------------------WL6372_VAR_8_08----------------------#'
################################################################################
# Checking the sort buffer functionality when data is more than 32K #
################################################################################
--echo # create a table
let $table = tab1;
--source include/create_table.inc
--echo #insert some 10 records
let $i = 10;
--source include/Load_data.inc
flush status;
flush table;
SET @@GLOBAL.sort_buffer_size=32768;
SET @@SESSION.sort_buffer_size=32768;
select variable_value from information_schema.session_status where variable_name ='Sort_merge_passes';
--echo 0 Expected
select variable_value from information_schema.session_status where variable_name ='Sort_rows';
--echo 0 Expected
select variable_value from information_schema.session_status where variable_name ='Sort_scan';
--echo 0 Expected
set @Sort_merge_passes = (select variable_value from information_schema.session_status where variable_name ='Sort_merge_passes');
set @Sort_rows = (select variable_value from information_schema.session_status where variable_name ='Sort_rows');
set @Sort_scan = (select variable_value from information_schema.session_status where variable_name ='Sort_scan');
select count(1) from (select b.* from tab1 b inner join tab1 c inner join tab1 d inner join tab1 e inner join tab1 f order by 1) a;
--echo 100000 Expected
select ( select variable_value from information_schema.global_status where variable_name ='Sort_merge_passes') = @Sort_merge_passes + 537;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Sort_rows') = @Sort_rows + 100000;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Sort_scan') = @Sort_scan + 1;
--echo 1 Expected
select count(1) from (select b.* from tab1 b inner join tab1 c inner join tab1 d inner join tab1 e inner join tab1 f order by 1) a;
--echo 100000 Expected
select ( select variable_value from information_schema.global_status where variable_name ='Sort_merge_passes') = @Sort_merge_passes + 1074;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Sort_rows') = @Sort_rows + 200000;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Sort_scan') = @Sort_scan + 2;
--echo 1 Expected
--echo #cleanup
DROP TABLE IF EXISTS tab1;
SET @@session.sort_buffer_size=DEFAULT;
SET @@GLOBAL.sort_buffer_size=DEFAULT;
|
