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###############################################################################
# #
# Variable Name: table_open_cache #
# Scope: Global #
# Access Type: Dynamic #
# Data Type: numeric #
# #
# #
# Creation Date: 2012-08-31 #
# Author : Tanjot Singh Uppal #
# #
# #
# Description:Test Cases of Dynamic System Variable table_open_cache #
# that checks the behavior of this variable in the following ways #
# * Value Check #
# * Scope Check #
# * Functionality Check #
# * Accessability Check #
# #
# This test does not perform the crash recovery on this variable #
# For crash recovery test on default change please run the ibtest #
###############################################################################
-- source include/have_innodb.inc
-- source include/not_embedded.inc
-- source include/have_innodb_16k.inc
if (`select $PS_PROTOCOL != 0`)
{
--skip Test requires: ps-protocol disabled
}
echo '#________________________VAR_05_table_open_cache__________________#'
echo '##'
--echo '#---------------------WL6372_VAR_5_01----------------------#'
####################################################################
# Checking default value #
####################################################################
SELECT COUNT(@@GLOBAL.table_open_cache);
--echo 1 Expected
SELECT IF(@@open_files_limit < 5000, 2000, @@GLOBAL.table_open_cache);
--echo 2000 Expected
--echo '#---------------------WL6372_VAR_5_02----------------------#'
#################################################################################
# Checking the Default value post starting the server with other value #
#################################################################################
--echo # Restart server with table_open_cache 1
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:--table_open_cache=1 " > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
-- enable_reconnect
-- source include/wait_until_connected_again.inc
SELECT @@GLOBAL.table_open_cache;
--echo 1 Expected
SET @@GLOBAL.table_open_cache=DEFAULT;
SELECT @@GLOBAL.table_open_cache;
--echo 2000 Expected
--echo '#---------------------WL6372_VAR_5_03----------------------#'
####################################################################
# Checking Value can be set - Dynamic #
####################################################################
--error ER_GLOBAL_VARIABLE
SET @@local.table_open_cache=1;
--echo Expected error 'Global variable'
--error ER_GLOBAL_VARIABLE
SET @@session.table_open_cache=1;
--echo Expected error 'Global variable'
SET @@GLOBAL.table_open_cache=1;
SET @@GLOBAL.table_open_cache=DEFAULT;
SELECT @@GLOBAL.table_open_cache;
--echo 2000 Expected
--echo '#---------------------WL6372_VAR_5_04----------------------#'
#################################################################
# Check if the value in GLOBAL Table matches value in variable #
#################################################################
SELECT @@GLOBAL.table_open_cache = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='table_open_cache';
--echo 1 Expected
SELECT COUNT(@@GLOBAL.table_open_cache);
--echo 1 Expected
SELECT COUNT(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='table_open_cache';
--echo 1 Expected
--echo '#---------------------WL6372_VAR_5_05----------------------#'
################################################################################
# Checking Variable Scope #
################################################################################
SELECT @@table_open_cache = @@GLOBAL.table_open_cache;
--echo 1 Expected
--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@local.table_open_cache);
--echo Expected error 'Variable is a GLOBAL variable'
--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@SESSION.table_open_cache);
--echo Expected error 'Variable is a GLOBAL variable'
SELECT COUNT(@@GLOBAL.table_open_cache);
--echo 1 Expected
--Error ER_BAD_FIELD_ERROR
SELECT table_open_cache = @@SESSION.table_open_cache;
--echo Expected error 'Unknown column table_open_cache in field list'
--echo '#---------------------WL6372_VAR_5_06----------------------#'
###############################################################################
# Checking the /Var directory size #
###############################################################################
-- source include/vardir_size_check.inc
--echo TRUE Expected
--echo '#---------------------WL6372_VAR_5_07----------------------#'
#################################################################################
# Checking the size of table cache functionality #
#################################################################################
--echo # create 3 tables and insert 1 row each
--disable_warnings
DROP TABLE IF EXISTS tab1;
DROP TABLE IF EXISTS tab2;
DROP TABLE IF EXISTS tab3;
--enable_warnings
let $i = 1;
let $table = tab1;
--source include/create_table.inc
--source include/Load_data.inc
let $table = tab2;
--source include/create_table.inc
--source include/Load_data.inc
let $table = tab3;
--source include/create_table.inc
--source include/Load_data.inc
flush tables;
flush status;
set @@GLOBAL.table_open_cache=2;
--echo # open two tables
select 1 from tab1;
--echo 1 Expected
select 1 from tab2;
--echo 1 Expected
set @opened_tables = (select variable_value from information_schema.session_status where variable_name ='Opened_tables');
set @open_cache_hits = (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_hits');
set @open_cache_miss = (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_misses');
set @open_cache_overflow = (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_overflows');
--echo # table_open_cache hit 1
select 1 from tab1;
--echo 1 Expected
--echo # table_open_cache hit 2
select 1 from tab2;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Opened_tables') = @opened_tables;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_hits') = @open_cache_hits + 2;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_misses') = @open_cache_miss;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_overflows') = @open_cache_overflow;
--echo 1 Expected
--echo # open third table
select 1 from tab3;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Opened_tables') = @opened_tables + 1;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_hits') = @open_cache_hits + 2;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_misses') = @open_cache_miss + 1;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_overflows') = @open_cache_overflow + 1;
--echo 1 Expected
flush status;
set @global_opened_tables = (select variable_value from information_schema.global_status where variable_name ='Opened_tables');
set @global_open_cache_hits = (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_hits');
set @global_open_cache_miss = (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_misses');
set @global_open_cache_overflow = (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_overflows');
--echo # opening table 2 from another client session
connect (con1,localhost,root,,);
set @opened_tables = (select variable_value from information_schema.session_status where variable_name ='Opened_tables');
set @open_cache_hits = (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_hits');
set @open_cache_miss = (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_misses');
set @open_cache_overflow = (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_overflows');
select 1 from tab2;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Opened_tables') = @opened_tables;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_hits') = @open_cache_hits + 1;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_misses') = @open_cache_miss;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_overflows') = @open_cache_overflow;
--echo 1 Expected
flush status;
connection default;
select (select variable_value from information_schema.global_status where variable_name ='Opened_tables') = @global_opened_tables;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_hits') = @global_open_cache_hits + 1;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_misses') = @global_open_cache_miss;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_overflows') = @global_open_cache_overflow;
--echo 1 Expected
connection con1;
select 1 from tab1;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Opened_tables') = @opened_tables + 1;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_hits') = @open_cache_hits;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_misses') = @open_cache_miss + 1;
--echo 1 Expected
select (select variable_value from information_schema.session_status where variable_name ='Table_open_cache_overflows') = @open_cache_overflow + 1;
flush status;
connection default;
select (select variable_value from information_schema.global_status where variable_name ='Opened_tables') = @global_opened_tables + 1;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_hits') = @global_open_cache_hits + 1;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_misses') = @global_open_cache_miss + 1;
--echo 1 Expected
select (select variable_value from information_schema.global_status where variable_name ='Table_open_cache_overflows') = @global_open_cache_overflow + 1;
--echo 1 Expected
disconnect con1;
--echo #cleanup
connection default;
DROP TABLE IF EXISTS tab1;
DROP TABLE IF EXISTS tab2;
DROP TABLE IF EXISTS tab3;
set @@GLOBAL.table_open_cache=DEFAULT;
|
