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
|
connection node_2;
connection node_1;
connection node_1;
CREATE TABLE ten (f1 INTEGER PRIMARY KEY) Engine=InnoDB;
INSERT INTO ten VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
CREATE TABLE t1 (f1 INTEGER, PRIMARY KEY (f1)) Engine=InnoDB;
CREATE TABLE t2 (f1 INTEGER, PRIMARY KEY (f1)) Engine=InnoDB;
SET GLOBAL wsrep_desync = 1;
show status like 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 1
SET DEBUG_SYNC='before_execute_sql_command SIGNAL alter1 WAIT_FOR alter2';
INSERT INTO t1 (f1) SELECT 0000 + (100 * a1.f1) + (10 * a2.f1) + a3.f1 FROM ten AS a1, ten AS a2, ten AS a3;
connection node_1a;
FLUSH STATUS;
SET GLOBAL wsrep_desync = 1;
Warnings:
Warning 1231 'wsrep_desync' is already ON.
show status like 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 1
SET DEBUG_SYNC='now WAIT_FOR alter1';
SET DEBUG_SYNC='before_execute_sql_command SIGNAL alter2';
INSERT INTO t2 (f1) SELECT 0000 + (100 * a1.f1) + (10 * a2.f1) + a3.f1 FROM ten AS a1, ten AS a2, ten AS a3;
connection node_1;
connection node_1a;
connection node_1;
SET DEBUG_SYNC='RESET';
SET GLOBAL wsrep_desync = 0;
show status like 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 0
SET GLOBAL wsrep_desync = 0;
Warnings:
Warning 1231 'wsrep_desync' is already OFF.
show status like 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 0
call mtr.add_suppression("Trying to make wsrep_desync = OFF on the node that is already synchronized\\.");
show status like 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 0
SET GLOBAL wsrep_desync = 0;
Warnings:
Warning 1231 'wsrep_desync' is already OFF.
SELECT COUNT(*) FROM t1;
COUNT(*)
1000
SELECT COUNT(*) FROM t2;
COUNT(*)
1000
DROP TABLE t1;
DROP TABLE t2;
DROP TABLE ten;
|
