MySQL 1032 主从错误解决方法

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MySQL 1032 错误 —- 现在生产库中好多数据，在从库误删了，生产库更新后找不到了，现在主从不同步了，再跳过错误也没用，因为没这条，再更新还会报错

临时解决方案：

mysql> stop slave;
Query OK, 0 rows
affected (0.00 sec)

mysql> set global sql_slave_skip_counter=1;
Query OK, 0 rows
affected (0.00 sec)

mysql> start slave;
Query OK, 0 rows
affected (0.00 sec)

永久性解决方案：
end_log_pos 有了它，根据 pos 值，直接就能找到，找到 delete 那条数据，反做（变成 insert）

故障模拟：

HE1 从库误删
mysql> delete from helei where id=3;
Query OK, 1 row
affected (0.29 sec)

mysql> select * from helei;
+—-+——+
| id | text |
+—-+——+
| 1 | aa
|
| 2 | bb
|
| 4 | ee
|
| 5 | ff
|
| 6 | gg
|
| 7 | hh
|
+—-+——+
6 rows in set (0.00
sec)

mysql> show slave status\G;
***************************
1. row ***************************
Slave_IO_State: Waiting for
master to send event
Master_Host: 192.168.1.250
Master_User: mysync
Master_Port: 2503306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 3711
Relay_Log_File:
HE1-relay-bin.000007
Relay_Log_Pos: 484
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes
Slave_SQL_Running: Yes 此时从库状态是正常的，但一旦主库对该条记录进行操作

HE3 主库更新从库刚刚误删的数据
mysql> update helei set text=’ccc’ where id=3;
Query OK, 1 row
affected (0.01 sec)
Rows matched: 1 Changed: 1
Warnings: 0

mysql> select * from helei;
+—-+——+
| id | text |
+—-+——+
| 1 | aa
|
| 2 | bb
|
| 3 | ccc
|
| 4 | ee
|
| 5 | ff
|
| 6 | gg
|
| 7 | hh
|
+—-+——+
7 rows in set (0.00
sec)HE1 从库报错
mysql> show slave status\G;
***************************
1. row ***************************
Slave_IO_State: Waiting for
master to send event
Master_Host: 192.168.1.250
Master_User: mysync
Master_Port: 2503306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 3918
Relay_Log_File:
HE1-relay-bin.000007
Relay_Log_Pos: 484
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
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 test.helei; Can’t find record in ‘helei’,
Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event’s master log
mysql-bin.000005, end_log_pos 3887
Skip_Counter: 0
Exec_Master_Log_Pos: 3711
Relay_Log_Space: 1626
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 test.helei;
Can’t find record in ‘helei’, Error_code: 1032; handler error
HA_ERR_KEY_NOT_FOUND; the event’s master log mysql-bin.000005, end_log_pos 3887（这个 mysql-bin.000005,end_log_pos
3887 是主库的）
Replicate_Ignore_Server_Ids:
Master_Server_Id: 2503306
Master_UUID:
f7c96432-f665-11e5-943f-000c2967a454
Master_Info_File:
/data/mysql/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: 160331 09:25:02
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00
sec)

此时主从又不同步了, 如果还去执行跳过错误操作，主从恢复同步，而且状态均为 yes，但！这并不能解决该问题，如果主库又更新该条记录，那么还是会报相同错误，而且 pos 号还会变，这就导致了恢复时你不知道前一条的 pos 号，导致丢失数据。
mysql> stop slave;
Query OK, 0 rows
affected (0.00 sec)

mysql> set global sql_slave_skip_counter=1;
Query OK, 0 rows
affected (0.00 sec)

mysql> start slave;
Query OK, 0 rows
affected (0.00 sec)

mysql> select * from helei;
+—-+——–+
| id | text |
+—-+——–+
| 1 | aa
|
| 2 | bb
|
| 4 | ee
|
| 5 | ff
|
| 6 | gg
|
| 7 | hh
|
| 8 | helei1 |
+—-+——–+
7 rows in set (0.00 sec)

mysql> show slave status\G;
***************************
1. row ***************************
Slave_IO_State: Waiting for
master to send event
Master_Host: 192.168.1.250
Master_User: mysync
Master_Port: 2503306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 4119
Relay_Log_File:
HE1-relay-bin.000008
Relay_Log_Pos: 283
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes
Slave_SQL_Running: Yes

这里虽然通过跳过错误达到恢复主从同步，但如果主库又对该条记录更新
mysql> update helei set text=’cccc’ where id=3;
Query OK, 1 row
affected (0.00 sec)
mysql> show slave status\G;
***************************
1. row ***************************
Slave_IO_State: Waiting for
master to send event
Master_Host: 192.168.1.250
Master_User: mysync
Master_Port: 2503306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 4328
Relay_Log_File:
HE1-relay-bin.000008
Relay_Log_Pos: 283
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes

Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
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 test.helei;
Can’t find record in ‘helei’, Error_code: 1032; handler error
HA_ERR_KEY_NOT_FOUND; the event’s master log mysql-bin.000005, end_log_pos 4297
Skip_Counter: 0
Exec_Master_Log_Pos: 4119
Relay_Log_Space: 1435
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 test.helei;
Can’t find record in ‘helei’, Error_code: 1032; handler error
HA_ERR_KEY_NOT_FOUND; the event’s master log mysql-bin.000005, end_log_pos 4297
Replicate_Ignore_Server_Ids:
Master_Server_Id: 2503306
Master_UUID:
f7c96432-f665-11e5-943f-000c2967a454
Master_Info_File:
/data/mysql/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: 160331 09:33:34
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0