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
|
drop table if exists t1, t2, t3, t4;
drop table if exists t1, t2, t3, t4;
start slave;
Got one of the listed errors
start slave;
ERROR HY000: Could not initialize master info structure; more error messages can be found in the MySQL error log
change master to master_host='127.0.0.1',master_port=MASTER_PORT, master_user='root';
ERROR HY000: Could not initialize master info structure; more error messages can be found in the MySQL error log
reset slave;
change master to master_host='127.0.0.1',master_port=MASTER_PORT, master_user='root';
reset master;
start slave;
create temporary table temp_table (a char(80) not null);
insert into temp_table values ("testing temporary tables");
create table t1 (s text);
insert into t1 values('Could not break slave'),('Tried hard');
show slave status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert
# 127.0.0.1 root MASTER_PORT 60 master-bin.000001 556 # # master-bin.000001 Yes Yes # 0 0 556 # None 0 No # No
select * from t1;
s
Could not break slave
Tried hard
flush logs;
create table t2(m int not null auto_increment primary key);
insert into t2 values (34),(67),(123);
flush logs;
show binary logs;
Log_name File_size
master-bin.000001 600
master-bin.000002 371
master-bin.000003 106
create table t3 select * from temp_table;
select * from t3;
a
testing temporary tables
drop table temp_table, t3;
insert into t2 values(1234);
set insert_id=1234;
insert into t2 values(NULL);
set global sql_slave_skip_counter=1;
start slave;
purge master logs to 'master-bin.000002';
show master logs;
Log_name File_size
master-bin.000002 371
master-bin.000003 415
purge binary logs to 'master-bin.000002';
show binary logs;
Log_name File_size
master-bin.000002 371
master-bin.000003 415
select @time_for_purge:=DATE_ADD(UPDATE_TIME, INTERVAL 1 SECOND)
from information_schema.tables
where TABLE_SCHEMA="test" and TABLE_NAME="t2";
purge master logs before (@time_for_purge);
show binary logs;
Log_name File_size
master-bin.000003 415
insert into t2 values (65);
show slave status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert
# 127.0.0.1 root MASTER_PORT 60 master-bin.000003 504 # # master-bin.000003 Yes Yes # 0 0 504 # None 0 No # No
select * from t2;
m
34
65
67
123
1234
create temporary table temp_table (a char(80) not null);
insert into temp_table values ("testing temporary tables part 2");
create table t3 (n int);
select count(*) from t3 where n >= 4;
count(*)
100
create table t4 select * from temp_table;
show binary logs;
Log_name File_size
master-bin.000003 4193
master-bin.000004 4198
master-bin.000005 2040
show master status;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000005 2040
select * from t4;
a
testing temporary tables part 2
show slave status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert
# 127.0.0.1 root MASTER_PORT 60 master-bin.000005 2040 # # master-bin.000005 Yes Yes # 0 0 2040 # None 0 No # No
lock tables t3 read;
select count(*) from t3 where n >= 4;
count(*)
100
unlock tables;
drop table if exists t1,t2,t3,t4;
|
