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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
SET @start_global_value = @@global.innodb_flush_neighbors;
SELECT @start_global_value;
@start_global_value
1
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
1
select @@session.innodb_flush_neighbors;
ERROR HY000: Variable 'innodb_flush_neighbors' is a GLOBAL variable
show global variables like 'innodb_flush_neighbors';
Variable_name Value
innodb_flush_neighbors 1
show session variables like 'innodb_flush_neighbors';
Variable_name Value
innodb_flush_neighbors 1
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 1
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 1
set global innodb_flush_neighbors=0;
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
0
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 0
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 0
set @@global.innodb_flush_neighbors=TRUE;
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
1
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 1
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 1
set global innodb_flush_neighbors=0;
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
0
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 0
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 0
set @@global.innodb_flush_neighbors=2;
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
2
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 2
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 2
set @@global.innodb_flush_neighbors=DEFAULT;
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
1
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 1
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
VARIABLE_NAME VARIABLE_VALUE
INNODB_FLUSH_NEIGHBORS 1
set session innodb_flush_neighbors=0;
ERROR HY000: Variable 'innodb_flush_neighbors' is a GLOBAL variable and should be set with SET GLOBAL
set @@session.innodb_flush_neighbors=1;
ERROR HY000: Variable 'innodb_flush_neighbors' is a GLOBAL variable and should be set with SET GLOBAL
set global innodb_flush_neighbors='OFF';
ERROR 42000: Incorrect argument type to variable 'innodb_flush_neighbors'
set global innodb_flush_neighbors='ON';
ERROR 42000: Incorrect argument type to variable 'innodb_flush_neighbors'
set global innodb_flush_neighbors=1.1;
ERROR 42000: Incorrect argument type to variable 'innodb_flush_neighbors'
set global innodb_flush_neighbors=1e1;
ERROR 42000: Incorrect argument type to variable 'innodb_flush_neighbors'
set global innodb_flush_neighbors=3;
Warnings:
Warning 1292 Truncated incorrect innodb_flush_neighbors value: '3'
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
2
set global innodb_flush_neighbors=-3;
Warnings:
Warning 1292 Truncated incorrect innodb_flush_neighbors value: '-3'
select @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
0
set global innodb_flush_neighbors='AUTO';
ERROR 42000: Incorrect argument type to variable 'innodb_flush_neighbors'
SET @@global.innodb_flush_neighbors = @start_global_value;
SELECT @@global.innodb_flush_neighbors;
@@global.innodb_flush_neighbors
1
|
