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# 2012-04-02 - Added
#
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';
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity_max';
select * from performance_schema.session_variables where variable_name='innodb_io_capacity_max';
--enable_warnings
#
# show that it's writable. Allowed value cannot be lower than innodb_io_capacity
#
set global innodb_io_capacity_max=@start_innodb_capacity + 1;
select @@global.innodb_io_capacity_max;
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity_max';
select * from performance_schema.session_variables where variable_name='innodb_io_capacity_max';
--enable_warnings
--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";
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_io_capacity_max=" ";
#
# check the default value
#
SET @@global.innodb_io_capacity_max = DEFAULT;
select @@global.innodb_io_capacity_max IN (18446744073709551615,4294967295);
#
# can't set it below innodb_io_capacity
#
set global innodb_io_capacity_max=@start_innodb_capacity - 1;
select @@global.innodb_io_capacity_max;
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity_max';
--enable_warnings
set global innodb_io_capacity_max=-7;
select @@global.innodb_io_capacity_max;
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity_max';
--enable_warnings
#
# 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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