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
|
include/master-slave.inc
Warnings:
Note #### Sending passwords in plain text without SSL/TLS is extremely insecure.
Note #### Storing MySQL user name or password information in the connection metadata repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection options for START REPLICA; see the 'START REPLICA Syntax' in the MySQL Manual for more information.
[connection master]
[connection master]
CALL mtr.add_suppression('Unsafe statement written to the binary log using statement format');
CREATE TABLE t1 (c1 INT PRIMARY KEY);
#
# Step 1 - XA + SBR = warning
#
SET SESSION binlog_format = 'STATEMENT';
Warnings:
Warning 1287 '@@binlog_format' is deprecated and will be removed in a future release.
XA START 'a';
SET @one = (SELECT SUBSTRING('11', 1, 1));
INSERT INTO t1 VALUES (@one);
Warnings:
Note 1592 Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. Statement is unsafe because it is being used inside a XA transaction. Concurrent XA transactions may deadlock on replicas when replicated using statements.
include/assert.inc [Any DML shall throw warning inside XA with SBR]
SET @two = (SELECT SUBSTRING('22', 1, 1));
INSERT INTO t1 VALUES (@two);
Warnings:
Note 1592 Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. Statement is unsafe because it is being used inside a XA transaction. Concurrent XA transactions may deadlock on replicas when replicated using statements.
XA END 'a';
XA PREPARE 'a';
XA COMMIT 'a';
SET SESSION binlog_format = DEFAULT;
Warnings:
Warning 1287 '@@binlog_format' is deprecated and will be removed in a future release.
#
# Step 2 - XA + MIXED != deadlock
#
BEGIN;
INSERT INTO t1 VALUES (7);
INSERT INTO t1 VALUES (8);
COMMIT;
XA START 'a';
INSERT INTO t1 VALUES (5);
[connection master1]
XA START 'b';
DELETE FROM t1 WHERE c1 > 5 AND c1 < 8;
XA END 'b';
XA PREPARE 'b';
[connection master]
XA END 'a';
XA PREPARE 'a';
XA COMMIT 'a';
[connection master1]
XA COMMIT 'b';
#
# Cleanup
#
[connection master]
DROP TABLE t1;
include/rpl_end.inc
|
