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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
SET @auto_commit= @@global.autocommit;
SET @@global.autocommit=0;
SET @transaction_isolation= @@global.transaction_isolation;
SET GLOBAL TRANSACTION ISOLATION LEVEL SERIALIZABLE;
SET @lock_wait=@@global.lock_wait_timeout;
SET @@global.lock_wait_timeout=1;
SET @innodb_lock_wait=@@global.innodb_lock_wait_timeout;
SET @@global.innodb_lock_wait_timeout=1;
INSERT INTO cache_policies VALUES("cache_policy", "innodb_only",
"innodb_only", "innodb_only", "innodb_only");
INSERT INTO config_options VALUES("separator", "|");
INSERT INTO containers VALUES ("desc_t1", "test", "t1",
"c1", "c2,c21", "c3", "c4", "c5", "PRIMARY");
CREATE USER mysqltest1@localhost;
COMMIT;
connect mysqltest1,localhost,mysqltest1,,;
connection mysqltest1;
USE test;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 VARCHAR(32),
c2 VARCHAR(1024),
c21 VARCHAR(1024),
c3 INT, c4 BIGINT UNSIGNED, c5 INT, primary key(c1))
ENGINE = INNODB;
COMMIT;
connection default;
INSTALL PLUGIN daemon_memcached SONAME 'libmemcached.so';
Warnings:
Warning 1681 'InnoDB Memcached Plugin' is deprecated and will be removed in a future release.
SELECT @@global.daemon_memcached_w_batch_size;
@@global.daemon_memcached_w_batch_size
4
SET @@global.daemon_memcached_w_batch_size=100;
ERROR HY000: Variable 'daemon_memcached_w_batch_size' is a read only variable
connection mysqltest1;
SELECT c1,c2,c21 FROM t1;
c1 c2 c21
COMMIT;
connection default;
1
1
1
1
SELECT c1,c2,c21 FROM test.t1;
c1 c2 c21
B Berlin Mitte
C Cottbus Süd
D Darmstadt City
H Hamburg Altona
connection mysqltest1;
SELECT c1,c2,c21 FROM t1 FOR UPDATE;
c1 c2 c21
B Berlin Mitte
C Cottbus Süd
D Darmstadt City
H Hamburg Altona
ROLLBACK;
connection default;
Here are the memcached results:
1
1
1
1
1
1
1
1
SELECT c1,c2,c21 FROM test.t1;
c1 c2 c21
B Berlin Mitte
C Cottbus Süd
D Darmstadt City
E Essen West
F Frankfurt Sachsenhausen
G Gossen City
H Hamburg Altona
M München Perlach
N Nürnberg Nord
O Oldenburg Friesland
P Paderborn City
S Stuttgart Schwaben
connection mysqltest1;
SELECT c1,c2,c21 FROM test.t1 FOR UPDATE;
c1 c2 c21
B Berlin Mitte
C Cottbus Süd
D Darmstadt City
E Essen West
F Frankfurt Sachsenhausen
G Gossen City
H Hamburg Altona
M München Perlach
N Nürnberg Nord
O Oldenburg Friesland
P Paderborn City
S Stuttgart Schwaben
COMMIT;
connection default;
Here are the memcached results:
1
1
1
SELECT SLEEP(2);
SLEEP(2)
0
SELECT c1,c2,c21 FROM test.t1;
c1 c2 c21
B Berlin Mitte
C Cottbus Süd
D Darmstadt City
E Essen W
F Frankfurt S
G Gossen C
H Hamburg Altona
M München Perlach
N Nürnberg Nord
O Oldenburg Friesland
P Paderborn City
S Stuttgart Schwaben
connection mysqltest1;
SELECT c1,c2,c21 FROM test.t1 FOR UPDATE;
c1 c2 c21
B Berlin Mitte
C Cottbus Süd
D Darmstadt City
E Essen W
F Frankfurt S
G Gossen C
H Hamburg Altona
M München Perlach
N Nürnberg Nord
O Oldenburg Friesland
P Paderborn City
S Stuttgart Schwaben
DROP TABLE test.t1;
COMMIT;
connection default;
disconnect mysqltest1;
UNINSTALL PLUGIN daemon_memcached;
DROP DATABASE innodb_memcache;
DROP USER mysqltest1@localhost;
SET @@global.transaction_isolation= @transaction_isolation;
SET @@global.autocommit=@auto_commit;
SET @@global.lock_wait_timeout=@lock_wait;
SET @@global.innodb_lock_wait_timeout=@innodb_lock_wait;
|
