MySQL複製應用中繼日誌解析
作者 :沃趣科技高階資料庫專家 邱文輝
從一個大神那邊得到一張圖片,SQL執行緒應用中繼日誌流程,下面就實驗驗證一下:(PS,我個人認為這張圖binlog_format為ROW格式是正確的)
2.驗證有PK表情況
在主庫建立表結構
CREATE TABLE `table_pk` (
`id` int(11) NOT NULL ,
`name` varchar(20) NOT NULL ,
`age` tinyint NOT NULL ,
`sex` tinyint NOT NULL COMMENT '0,man,1,woman' ,
PRIMARY KEY (`id`)
) ENGINE=InnoDB;
插入測試資料
insert into table_pk (`id`,`name`,`age`,`sex`) values(111,'zhangsan',20,0);
insert into table_pk (`id`,`name`,`age`,`sex`) values(222,'lisi',22,1);
insert into table_pk (`id`,`name`,`age`,`sex`) values(333,'wangwu',22,1);
insert into table_pk (`id`,`name`,`age`,`sex`) values(444,'lilei',32,0);
insert into table_pk (`id`,`name`,`age`,`sex`) values(555,'hanmeimei',30,1);
(dg6)root@localhost [mytest]> select * from table_pk;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg6)root@localhost [mytest]> show global variables like '%binlog_format%';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| binlog_format | ROW |
+---------------+-------+
row in set (0.00 sec)
那麼我們去從庫看看
(dg7)root@localhost [mytest]> select * from table_pk;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg7)root@localhost [mytest]> show global variables like '%binlog_format%';
+--------------------------+-------------------+
| Variable_name | Value |
+--------------------------+-------------------+
| binlog_format | ROW |
+--------------------------+-------------------+
rows in set (0.00 sec)
(dg7)root@localhost [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.106
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: dg6-logbin.000001
Read_Master_Log_Pos: 4469
Relay_Log_File: dg7-relay-bin.000002
Relay_Log_Pos: 4681
Relay_Master_Log_File: dg6-logbin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 4469
Relay_Log_Space: 4883
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: b888e1ea-9739-11e4-a24e-000c29b24887
Master_Info_File: /data/mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: b888e1ea-9739-11e4-a24e-000c29b24887:1-17
Executed_Gtid_Set: a9926b45-975d-11e4-a339-000c29b24888:1-9,
b888e1ea-9739-11e4-a24e-000c29b24887:1-17
Auto_Position: 1
row in set (0.00 sec)
資料是複製過來的,MySQL主從複製是正常的,那麼我們為了驗證MySQL複製SQL執行緒是居於剛才那張圖的流程,有主鍵,就按主鍵更新匹配更新記錄。
那麼我們在從庫修改一行資料,故意製造不一致。
(dg7)root@localhost [mytest]> UPDATE `table_pk` SET `name`='laowang' WHERE `id`=333;Query OK, 0 rows affected (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 0
(dg7)root@localhost [mytest]> select * from table_pk;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | laowang | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
這時候主從資料不一致了
主庫
(dg6)root@localhost [mytest]> select * from table_pk where id=333;
+-----+--------+-----+-----+
| id | name | age | sex |
+-----+--------+-----+-----+
| 333 | wangwu | 22 | 1 |
+-----+--------+-----+-----+
row in set (0.00 sec)
從庫
(dg7)root@localhost [mytest]> select * from table_pk where id=333;
+-----+---------+-----+-----+
| id | name | age | sex |
+-----+---------+-----+-----+
| 333 | laowang | 22 | 1 |
+-----+---------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]>
那麼,我們在主庫更新一行資料。
(dg6)root@localhost [mytest]> UPDATE `table_pk` SET `name`='wangzi' WHERE `id`=333;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg6)root@localhost [mytest]> select * from table_pk where id=333;
+-----+--------+-----+-----+
| id | name | age | sex |
+-----+--------+-----+-----+
| 333 | wangzi | 22 | 1 |
+-----+--------+-----+-----+
row in set (0.00 sec)
我們來看一下從庫狀態,是不是主庫的更新給複製過來了,見證奇蹟的時候到了
###############################################
(dg7)root@localhost [mytest]> select * from table_pk where id=333;
+-----+---------+-----+-----+
| id | name | age | sex |
+-----+---------+-----+-----+
| 333 | laowang | 22 | 1 |
+-----+---------+-----+-----+
row in set (0.00 sec)
######################### 神奇的是主庫的更新過來了#############################################
(dg7)root@localhost [mytest]> select * from table_pk where id=333;
+-----+--------+-----+-----+
| id | name | age | sex |
+-----+--------+-----+-----+
| 333 | wangzi | 22 | 1 |
+-----+--------+-----+-----+
row in set (0.00 sec)
#########################那麼看一下MySQL主從複製狀態看看,也是正常的######################
(dg7)root@localhost [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.106
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: dg6-logbin.000001
Read_Master_Log_Pos: 5249
Relay_Log_File: dg7-relay-bin.000002
Relay_Log_Pos: 5461
Relay_Master_Log_File: dg6-logbin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 5249
Relay_Log_Space: 5663
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: b888e1ea-9739-11e4-a24e-000c29b24887
Master_Info_File: /data/mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: b888e1ea-9739-11e4-a24e-000c29b24887:1-20
Executed_Gtid_Set: a9926b45-975d-11e4-a339-000c29b24888:1-11,
b888e1ea-9739-11e4-a24e-000c29b24887:1-20
Auto_Position: 1
row in set (0.00 sec)
(dg7)root@localhost [mytest]>
3.驗證沒有索引的情況
主庫建立表和插入記錄
CREATE TABLE `table_index` (`id` int(11) NOT NULL,
`name` varchar(20) NOT NULL,
`age` tinyint(4) NOT NULL,
`sex` tinyint(4) NOT NULL COMMENT '0,man,1,woman'
) ENGINE=InnoDB
(dg6)root@localhost [mytest]> select * from table_index;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg6)root@localhost [mytest]>
從庫看看
(dg7)root@localhost [mytest]> select * from table_index;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
我們在從庫繼續搞破壞,把name為lisi的age修改為33,這時候主從已經不一致了。
(dg7)root@localhost [mytest]> select * from table_index where name='lisi';
+-----+------+-----+-----+
| id | name | age | sex |
+-----+------+-----+-----+
| 222 | lisi | 22 | 1 |
+-----+------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]> update table_index set age=33 where name='lisi';
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg7)root@localhost [mytest]> select * from table_index where name='lisi';
+-----+---------+-----+-----+
| id | name | age | sex |
+-----+---------+-----+-----+
| 222 | lisi | 33 | 1 |
+-----+---------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]>
那麼我們還是在主庫更新一下記錄。把lisi的age修改成30,看看從庫能不能更新過來
(dg6)root@localhost [mytest]> select * from table_index where name='lisi';
+-----+------+-----+-----+
| id | name | age | sex |
+-----+------+-----+-----+
| 222 | lisi | 22 | 1 |
+-----+------+-----+-----+
row in set (0.00 sec)
(dg6)root@localhost [mytest]> update table_index set age=30 where name='lisi';
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg6)root@localhost [mytest]> select * from table_index where name='lisi';
+-----+------+-----+-----+
| id | name | age | sex |
+-----+------+-----+-----+
| 222 | lisi | 30 | 1 |
+-----+------+-----+-----+
row in set (0.00 sec)
(dg6)root@localhost [mytest]>
回到從庫看看,資料沒有更新過來,lisi的年齡還是33,這時候主從複製也是異常的,提示1032錯誤(找不到記錄)
(dg7)root@localhost [mytest]> select * from table_index where name='lisi';
+-----+------+-----+-----+
| id | name | age | sex |
+-----+------+-----+-----+
| 222 | lisi | 33 | 1 |
+-----+------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.106
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: dg6-logbin.000001
Read_Master_Log_Pos: 7376
Relay_Log_File: dg7-relay-bin.000003
Relay_Log_Pos: 724
Relay_Master_Log_File: dg6-logbin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1032
Last_Error: Could not execute Update_rows event on table mytest.table_index; Can't find record in 'table_index', Error_code: 1032; Corrupted replication event was detected, Error_code: 1610; handler error HA_ERR_END_OF_FILE; the event's master log dg6-logbin.000001, end_log_pos 7345
Skip_Counter: 0
Exec_Master_Log_Pos: 7112
Relay_Log_Space: 8090
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 1032
Last_SQL_Error: Could not execute Update_rows event on table mytest.table_index; Can't find record in 'table_index', Error_code: 1032; Corrupted replication event was detected, Error_code: 1610; handler error HA_ERR_END_OF_FILE; the event's master log dg6-logbin.000001, end_log_pos 7345
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: b888e1ea-9739-11e4-a24e-000c29b24887
Master_Info_File: /data/mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 150425 08:30:49
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: b888e1ea-9739-11e4-a24e-000c29b24887:1-28
Executed_Gtid_Set: a9926b45-975d-11e4-a339-000c29b24888:1-14,
b888e1ea-9739-11e4-a24e-000c29b24887:1-27
Auto_Position: 1
row in set (0.00 sec)
(dg7)root@localhost [mytest]>
(dg6)root@localhost [mytest]> select * from table_index;
+-----+-----+-----------+-----+-----+
| id | sid | name | age | sex |
+-----+-----+-----------+-----+-----+
| 111 | 1 | zhangsan | 20 | 0 |
| 222 | 2 | lisi | 30 | 1 |
| 333 | 3 | wangzi | 22 | 1 |
| 444 | 4 | lilei | 32 | 0 |
| 555 | 5 | hanmeimei | 30 | 1 |
+-----+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg6)root@localhost [mytest]> select * from table_index where sid=3;
+-----+-----+--------+-----+-----+
| id | sid | name | age | sex |
+-----+-----+--------+-----+-----+
| 333 | 3 | wangzi | 22 | 1 |
+-----+-----+--------+-----+-----+
row in set (0.00 sec)
(dg6)root@localhost [mytest]> update table_index set name='wangwu' where sid=3;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg6)root@localhost [mytest]> select * from table_index where sid=3;
+-----+-----+--------+-----+-----+
| id | sid | name | age | sex |
+-----+-----+--------+-----+-----+
| 333 | 3 | wangwu | 22 | 1 |
+-----+-----+--------+-----+-----+
row in set (0.00 sec)
(dg6)root@localhost [mytest]>
從庫看看,能更新過來,而且主從複製狀態是正常的
(dg7)root@localhost [mytest]> select * from table_index;
+-----+-----+-----------+-----+-----+
| id | sid | name | age | sex |
+-----+-----+-----------+-----+-----+
| 111 | 1 | zhangsan | 20 | 0 |
| 222 | 2 | lisi | 30 | 1 |
| 333 | 3 | wangzi | 22 | 1 |
| 444 | 4 | lilei | 32 | 0 |
| 555 | 5 | hanmeimei | 30 | 1 |
+-----+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg7)root@localhost [mytest]> update table_index set name='laowang' where sid=3;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg7)root@localhost [mytest]> select * from table_index where sid=3;
+-----+-----+---------+-----+-----+
| id | sid | name | age | sex |
+-----+-----+---------+-----+-----+
| 333 | 3 | laowang | 22 | 1 |
+-----+-----+---------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.106
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: dg6-logbin.000001
Read_Master_Log_Pos: 13038
Relay_Log_File: dg7-relay-bin.000005
Relay_Log_Pos: 5841
Relay_Master_Log_File: dg6-logbin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 13038
Relay_Log_Space: 6615
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: b888e1ea-9739-11e4-a24e-000c29b24887
Master_Info_File: /data/mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: b888e1ea-9739-11e4-a24e-000c29b24887:1-52
Executed_Gtid_Set: a9926b45-975d-11e4-a339-000c29b24888:1-26,
b888e1ea-9739-11e4-a24e-000c29b24887:1-52
Auto_Position: 1
row in set (0.00 sec)
(dg7)root@localhost [mytest]> select * from table_index where sid=3;
+-----+-----+--------+-----+-----+
| id | sid | name | age | sex |
+-----+-----+--------+-----+-----+
| 333 | 3 | wangwu | 22 | 1 |
+-----+-----+--------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.106
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: dg6-logbin.000001
Read_Master_Log_Pos: 13302
Relay_Log_File: dg7-relay-bin.000005
Relay_Log_Pos: 6105
Relay_Master_Log_File: dg6-logbin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 13302
Relay_Log_Space: 6879
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: b888e1ea-9739-11e4-a24e-000c29b24887
Master_Info_File: /data/mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: b888e1ea-9739-11e4-a24e-000c29b24887:1-53
Executed_Gtid_Set: a9926b45-975d-11e4-a339-000c29b24888:1-26,
b888e1ea-9739-11e4-a24e-000c29b24887:1-53
Auto_Position: 1
row in set (0.00 sec)
(dg7)root@localhost [mytest]>
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
| 666 | lucy | 30 | 1 |
| 777 | lili | 30 | 1 |
| 888 | lintao | 32 | 0 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg6)root@localhost [mytest]> update table_key set name='zhangsir' where age=20;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg6)root@localhost [mytest]> select * from table_key;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsir | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
| 666 | lucy | 30 | 1 |
| 777 | lili | 30 | 1 |
| 888 | lintao | 32 | 0 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg6)root@localhost [mytest]>
從庫看看
(dg7)root@localhost [mytest]> select * from table_key;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
| 666 | lucy | 30 | 1 |
| 777 | lili | 30 | 1 |
| 888 | lintao | 32 | 0 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg7)root@localhost [mytest]> desc update table_key set name='xiaozhang' where age=20;
+----+-------------+-----------+-------+---------------+-----------+---------+-------+------+-------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-----------+-------+---------------+-----------+---------+-------+------+-------------+
| 1 | SIMPLE | table_key | range | age_index | age_index | 1 | const | 1 | Using where |
+----+-------------+-----------+-------+---------------+-----------+---------+-------+------+-------------+
row in set (0.00 sec)
(dg7)root@localhost [mytest]> update table_key set name='xiaozhang' where age=20;
Query OK, 1 row affected (0.03 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg7)root@localhost [mytest]> select * from table_key;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | xiaozhang | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
| 666 | lucy | 30 | 1 |
| 777 | lili | 30 | 1 |
| 888 | lintao | 32 | 0 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg7)root@localhost [mytest]> select * from table_key;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsir | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
| 666 | lucy | 30 | 1 |
| 777 | lili | 30 | 1 |
| 888 | lintao | 32 | 0 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg7)root@localhost [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.106
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: dg6-logbin.000001
Read_Master_Log_Pos: 16026
Relay_Log_File: dg7-relay-bin.000005
Relay_Log_Pos: 8829
Relay_Master_Log_File: dg6-logbin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 16026
Relay_Log_Space: 9603
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: b888e1ea-9739-11e4-a24e-000c29b24887
Master_Info_File: /data/mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: b888e1ea-9739-11e4-a24e-000c29b24887:1-63
Executed_Gtid_Set: a9926b45-975d-11e4-a339-000c29b24888:1-28,
b888e1ea-9739-11e4-a24e-000c29b24887:1-63
Auto_Position: 1
row in set (0.00 sec)
(dg7)root@localhost [mytest]>
6.驗證只有普通索引情況
主庫
7.binlog格式是sbr,mbr格式的時候(PS,因為我使用了GTID,所以找了另外兩臺機測試)
主庫
總結
1、SQL執行緒應用中繼日誌,在binlog_format是row格式的時候,確實是居於主鍵更新(Innodb表,如果沒有顯示指定主鍵,如果沒有顯式定義主鍵,則InnoDB會選擇第一個不包含有NULL值的唯一索引作為主鍵索引),所以這張圖是binlog_format=ROW格式是基本正確的。
2、使用自增列(INT/BIGINT型別)做主鍵,這樣資料分佈基本是有序的與B+數葉子節點分裂順序一致,效能相對比較好;
3、形象的證明了RBR模式下,在有主鍵和唯一鍵的情況下MySQL複製SQL執行緒在應用中繼日誌的時候,鎖範圍比語句模式要少
參考資料 :SBR RBR兩種模式的優缺點
CREATE TABLE `table_index` (
`id` int(11) NOT NULL,
`name` varchar(20) NOT NULL,
`age` tinyint(4) NOT NULL,
`sex` tinyint(4) NOT NULL COMMENT '0,man,1,woman',
key age_index (`age`)
) ENGINE=InnoDB
(dg6)root@localhost [mytest]>select * from table_key where age=20;
+-----+----------+-----+-----+
| id | name | age | sex |
+-----+----------+-----+-----+
| 111 | zhangsir | 20 | 0 |
+-----+----------+-----+-----+
row in set (0.00 sec)
(dg6)root@localhost [mytest]>update table_key set name='zhaoliu' where age=20;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg6)root@localhost [mytest]>select * from table_key where age=20;
+-----+---------+-----+-----+
| id | name | age | sex |
+-----+---------+-----+-----+
| 111 | zhaoliu | 20 | 0 |
+-----+---------+-----+-----+
row in set (0.00 sec)
從庫
(dg7)root@localhost [mytest]> select * from table_key where age=20;
+-----+----------+-----+-----+
| id | name | age | sex |
+-----+----------+-----+-----+
| 111 | zhangsir | 20 | 0 |
+-----+----------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]> update table_key set name='zhangsan' where age=20;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg7)root@localhost [mytest]> select * from table_key where age=20;
+-----+----------+-----+-----+
| id | name | age | sex |
+-----+----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
+-----+----------+-----+-----+
row in set (0.00 sec)
(dg7)root@localhost [mytest]> select * from table_key where age=20;
+-----+----------+-----+-----+
| id | name | age | sex |
+-----+----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
+-----+----------+-----+-----+
row in set (0.00 sec)
##########################提示1032錯誤,找不到記錄
(dg7)root@localhost [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.106
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: dg6-logbin.000001
Read_Master_Log_Pos: 16463
Relay_Log_File: dg7-relay-bin.000005
Relay_Log_Pos: 8993
Relay_Master_Log_File: dg6-logbin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1032
Last_Error: Could not execute Update_rows event on table mytest.table_key; Can't find record in 'table_key', Error_code: 1032; Column 'name' cannot be null, Error_code: 1048; Column 'age' cannot be null, Error_code: 1048; Column 'sex' cannot be null, Error_code: 1048; handler error HA_ERR_END_OF_FILE; the event's master log dg6-logbin.000001, end_log_pos 16432
Skip_Counter: 0
Exec_Master_Log_Pos: 16190
Relay_Log_Space: 10040
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 1032
Last_SQL_Error: Could not execute Update_rows event on table mytest.table_key; Can't find record in 'table_key', Error_code: 1032; Column 'name' cannot be null, Error_code: 1048; Column 'age' cannot be null, Error_code: 1048; Column 'sex' cannot be null, Error_code: 1048; handler error HA_ERR_END_OF_FILE; the event's master log dg6-logbin.000001, end_log_pos 16432
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: b888e1ea-9739-11e4-a24e-000c29b24887
Master_Info_File: /data/mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 150425 09:43:27
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: b888e1ea-9739-11e4-a24e-000c29b24887:1-65
Executed_Gtid_Set: a9926b45-975d-11e4-a339-000c29b24888:1-29,
b888e1ea-9739-11e4-a24e-000c29b24887:1-64
Auto_Position: 1
row in set (0.00 sec)
(dg7)root@localhost [mytest]>
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
| 666 | lucy | 30 | 1 |
| 777 | lili | 30 | 1 |
| 888 | lintao | 32 | 0 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg1)root@127.0.0.1 [mytest]> show global variables like '%binlog_format%';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| binlog_format | MIXED |
+---------------+-------+
row in set (0.00 sec)
(dg1)root@127.0.0.1 [mytest]> select * from table_key;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
| 222 | lisi | 22 | 1 |
| 333 | wangwu | 22 | 1 |
| 444 | lilei | 32 | 0 |
| 555 | hanmeimei | 30 | 1 |
| 666 | lucy | 30 | 1 |
| 777 | lili | 30 | 1 |
| 888 | lintao | 32 | 0 |
+-----+-----------+-----+-----+
rows in set (0.00 sec)
(dg1)root@127.0.0.1 [mytest]> update table_key set name='zhangzong' where age=20;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
從庫看一下
(dg2)root@127.0.0.1 [mytest]> select * from table_key where age=20;
+-----+----------+-----+-----+
| id | name | age | sex |
+-----+----------+-----+-----+
| 111 | zhangsan | 20 | 0 |
+-----+----------+-----+-----+
row in set (0.01 sec)
(dg2)root@127.0.0.1 [mytest]> update table_key set name='zhangsir' where age=20;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg2)root@127.0.0.1 [mytest]> select * from table_key where age=20;
+-----+----------+-----+-----+
| id | name | age | sex |
+-----+----------+-----+-----+
| 111 | zhangsir | 20 | 0 |
+-----+----------+-----+-----+
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]> select * from table_key where age=20;
+-----+-----------+-----+-----+
| id | name | age | sex |
+-----+-----------+-----+-----+
| 111 | zhangzong | 20 | 0 |
+-----+-----------+-----+-----+
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.101
Master_User: repl
Master_Port: 3307
Connect_Retry: 60
Master_Log_File: dg1.000001
Read_Master_Log_Pos: 3340
Relay_Log_File: mysql3307-relay-bin.000002
Relay_Log_Pos: 3355
Relay_Master_Log_File: dg1.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 3340
Relay_Log_Space: 3532
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 12
Master_UUID: fbc1bdf1-829b-11e4-9bdf-000c29b24882
Master_Info_File: /data/3307/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]>
刪除索引,再測試一下
(dg1)root@127.0.0.1 [mytest]> alter table table_key drop key age_index;
Query OK, 0 rows affected (0.02 sec)
Records: 0 Duplicates: 0 Warnings: 0
(dg1)root@127.0.0.1 [mytest]> insert into table_key (id,name,age,sex) values(999,'user1',0);
ERROR 1136 (21S01): Column count doesn't match value count at row 1
(dg1)root@127.0.0.1 [mytest]> insert into table_key (id,name,age,sex) values(999,'user1',38,0);
Query OK, 1 row affected (0.00 sec)
(dg1)root@127.0.0.1 [mytest]> select * from table_key where age=38;
+-----+-------+-----+-----+
| id | name | age | sex |
+-----+-------+-----+-----+
| 999 | user1 | 38 | 0 |
+-----+-------+-----+-----+
row in set (0.00 sec)
(dg1)root@127.0.0.1 [mytest]> update table_key set name='user3' where age=38;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg1)root@127.0.0.1 [mytest]>
從庫看一下
(dg2)root@127.0.0.1 [mytest]> show create table table_key;
+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| table_key | CREATE TABLE `table_key` (
`id` int(11) NOT NULL,
`name` varchar(20) NOT NULL,
`age` tinyint(4) NOT NULL,
`sex` tinyint(4) NOT NULL COMMENT '0,man,1,woman'
) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]> select * from table_key where age=38;
+-----+-------+-----+-----+
| id | name | age | sex |
+-----+-------+-----+-----+
| 999 | user1 | 38 | 0 |
+-----+-------+-----+-----+
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]> update table_key set name='user2' where age=38;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
(dg2)root@127.0.0.1 [mytest]> select * from table_key where age=38;
+-----+-------+-----+-----+
| id | name | age | sex |
+-----+-------+-----+-----+
| 999 | user2 | 38 | 0 |
+-----+-------+-----+-----+
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]> select * from table_key where age=38;
+-----+-------+-----+-----+
| id | name | age | sex |
+-----+-------+-----+-----+
| 999 | user3 | 38 | 0 |
+-----+-------+-----+-----+
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.80.101
Master_User: repl
Master_Port: 3307
Connect_Retry: 60
Master_Log_File: dg1.000001
Read_Master_Log_Pos: 3952
Relay_Log_File: mysql3307-relay-bin.000002
Relay_Log_Pos: 3967
Relay_Master_Log_File: dg1.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 3952
Relay_Log_Space: 4144
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 12
Master_UUID: fbc1bdf1-829b-11e4-9bdf-000c29b24882
Master_Info_File: /data/3307/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
row in set (0.00 sec)
(dg2)root@127.0.0.1 [mytest]>
來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/28218939/viewspace-2090565/,如需轉載,請註明出處,否則將追究法律責任。
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