blob: ebc934acf6e6c70000b345a96428a54eb66d8b88 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
SET @start_innodb_max_capacity = @@global.innodb_io_capacity_max;
SELECT @start_innodb_max_capacity;
@start_innodb_max_capacity
2000
SET @start_innodb_capacity = @@global.innodb_io_capacity;
SELECT @start_innodb_capacity;
@start_innodb_capacity
200
Valid value 100 or more
select @@global.innodb_io_capacity_max > 99;
@@global.innodb_io_capacity_max > 99
1
select @@global.innodb_io_capacity_max;
@@global.innodb_io_capacity_max
2000
select @@session.innodb_io_capacity_max;
ERROR HY000: Variable 'innodb_io_capacity_max' is a GLOBAL variable
show global variables like 'innodb_io_capacity_max';
Variable_name Value
innodb_io_capacity_max 2000
show session variables like 'innodb_io_capacity_max';
Variable_name Value
innodb_io_capacity_max 2000
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
VARIABLE_NAME VARIABLE_VALUE
INNODB_IO_CAPACITY_MAX 2000
select * from information_schema.session_variables where variable_name='innodb_io_capacity_max';
VARIABLE_NAME VARIABLE_VALUE
INNODB_IO_CAPACITY_MAX 2000
set global innodb_io_capacity_max=@start_innodb_capacity + 1;
select @@global.innodb_io_capacity_max;
@@global.innodb_io_capacity_max
201
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
VARIABLE_NAME VARIABLE_VALUE
INNODB_IO_CAPACITY_MAX 201
select * from information_schema.session_variables where variable_name='innodb_io_capacity_max';
VARIABLE_NAME VARIABLE_VALUE
INNODB_IO_CAPACITY_MAX 201
set session innodb_io_capacity_max=444;
ERROR HY000: Variable 'innodb_io_capacity_max' is a GLOBAL variable and should be set with SET GLOBAL
set global innodb_io_capacity_max=1.1;
ERROR 42000: Incorrect argument type to variable 'innodb_io_capacity_max'
set global innodb_io_capacity_max=1e1;
ERROR 42000: Incorrect argument type to variable 'innodb_io_capacity_max'
set global innodb_io_capacity_max="foo";
ERROR 42000: Incorrect argument type to variable 'innodb_io_capacity_max'
set global innodb_io_capacity_max=@start_innodb_capacity - 1;
Warnings:
Warning 1210 innodb_io_capacity_max cannot be set lower than innodb_io_capacity.
Warning 1210 Setting innodb_io_capacity_max to 200
select @@global.innodb_io_capacity_max;
@@global.innodb_io_capacity_max
200
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
VARIABLE_NAME VARIABLE_VALUE
INNODB_IO_CAPACITY_MAX 200
set global innodb_io_capacity_max=-7;
Warnings:
Warning 1292 Truncated incorrect innodb_io_capacity_max value: '-7'
Warning 1210 innodb_io_capacity_max cannot be set lower than innodb_io_capacity.
Warning 1210 Setting innodb_io_capacity_max to 200
select @@global.innodb_io_capacity_max;
@@global.innodb_io_capacity_max
200
select * from information_schema.global_variables where variable_name='innodb_io_capacity_max';
VARIABLE_NAME VARIABLE_VALUE
INNODB_IO_CAPACITY_MAX 200
set global innodb_io_capacity=100;
set global innodb_io_capacity_max=100;
select @@global.innodb_io_capacity_max;
@@global.innodb_io_capacity_max
100
SET @@global.innodb_io_capacity_max = @start_innodb_max_capacity;
SELECT @@global.innodb_io_capacity_max;
@@global.innodb_io_capacity_max
2000
SET @@global.innodb_io_capacity = @start_innodb_capacity;
SELECT @@global.innodb_io_capacity;
@@global.innodb_io_capacity
200
|
