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Current File : /usr/local/mysql/mysql-test/suite/sys_vars/t/innodb_io_capacity_max_basic.test

# 2012-04-02 - Added
#

--source include/have_innodb.inc

SET @start_innodb_max_capacity = @@global.innodb_io_capacity_max;
SELECT @start_innodb_max_capacity;

SET @start_innodb_capacity = @@global.innodb_io_capacity;
SELECT @start_innodb_capacity;

#
# exists as global only
#
--echo Valid value 100 or more
select @@global.innodb_io_capacity_max > 99;
select @@global.innodb_io_capacity_max;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.innodb_io_capacity_max;
show global variables like 'innodb_io_capacity_max';
show session variables like 'innodb_io_capacity_max';
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
select * from information_schema.session_variables where variable_name='innodb_io_capacity_max';

#
# show that it's writable. 
#
set global innodb_io_capacity_max=@start_innodb_capacity + 1;
select @@global.innodb_io_capacity_max;
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
select * from information_schema.session_variables where variable_name='innodb_io_capacity_max';
--error ER_GLOBAL_VARIABLE
set session innodb_io_capacity_max=444;

#
# incorrect types
#
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_io_capacity_max=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_io_capacity_max=1e1;
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_io_capacity_max="foo";

#
# Setting io_capacity_max lower than io_capacity affects also io_capacity
#
set global innodb_io_capacity_max=1000;
set global innodb_io_capacity=500;
set global innodb_io_capacity_max=400;
select @@global.innodb_io_capacity_max;
select @@global.innodb_io_capacity;
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
select * from information_schema.global_variables where variable_name='innodb_io_capacity';

#
# Setting io_capacity higher than io_capacity_max affects also io_capacity_max
#
set global innodb_io_capacity_max=1000;
set global innodb_io_capacity=500;
set global innodb_io_capacity=1400;
select @@global.innodb_io_capacity_max;
select @@global.innodb_io_capacity;
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
select * from information_schema.global_variables where variable_name='innodb_io_capacity';
#
# min/max values
#
# first set innodb_io_cpaacity lower
set global innodb_io_capacity=100;
set global innodb_io_capacity_max=100;
select @@global.innodb_io_capacity_max;

#
# cleanup
#

SET @@global.innodb_io_capacity_max = @start_innodb_max_capacity;
SELECT @@global.innodb_io_capacity_max;

SET @@global.innodb_io_capacity = @start_innodb_capacity;
SELECT @@global.innodb_io_capacity;

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